Patent Publication Number: US-8114378-B2

Title: ITQ-26, new crystalline microporous material

Description:
BACKGROUND OF THE INVENTION 
     Microporous materials, including zeolites and silicoaluminophosphates, are widely used in the petroleum industry as absorbents, catalysts and catalyst supports. Their crystalline structures consist of three-dimensional frameworks containing uniform pore openings, channels and internal cages of dimensions (&lt;20 Å) similar to most hydrocarbons. The composition of the frameworks can be such that they are anionic, which requires the presence of non-framework cations to balance the negative charge. These non-framework cations, such as alkali or alkaline earth metal cations, are exchangeable, either entirely or partially with another type of cation utilizing ion exchange techniques in a conventional manner. If these non-framework cations are converted to the proton form by, for example, acid treatments or exchange with ammonium cations followed by calcination to remove the ammonia, it imparts the material with Brønsted acid sites having catalytic activity. The combination of acidity and restricted pore openings gives these materials catalytic properties unavailable with other materials due to their ability to exclude or restrict some of the products, reactants, and/or transition states in many reactions. Non-reactive materials, such as pure silica and aluminophosphate frameworks are also useful and can be used in absorption and separation processes of liquids, gases, and reactive molecules such as alkenes. 
     The family of crystalline microporous compositions known as molecular sieves, which exhibit the ion-exchange and/or adsorption characteristics of zeolites are the aluminophosphates, identified by the acronym AlPO, and substituted aluminophosphates as disclosed in U.S. Pat. Nos. 4,310,440 and 4,440,871. U.S. Pat. No. 4,440,871 discloses a class of silica aluminophosphates, which are identified by the acronym SAPO and which have different structures as identified by their X-ray diffraction pattern. The structures are identified by a numerical number after AlPO, SAPO, MeAPO (Me=metal), etc. (Flanigen et al.,  Proc.  7 th Int. Zeolite Conf ., p. 103 (1986) and may include Al and P substitutions by B, Si, Be, Mg, Ge, Zn, Fe, Co, Ni, etc. The present invention is a new molecular sieve having a unique framework structure. 
     ExxonMobil and others extensively use various microporous materials, such as faujasite, mordenite, and ZSM-5 in many commercial applications. Such applications include reforming, cracking, hydrocracking, alkylation, oligomerization, dewaxing and isomerization. Any new material has the potential to improve the catalytic performance over those catalysts presently employed. 
     There are currently over 150 known microporous framework structures as tabulated by the International Zeolite Association. There exists the need for new structures, having different properties than those of known materials, for improving the performance of many hydrocarbon processes. Each structure has unique pore, channel and cage dimensions, which gives its particular properties as described above. ITQ-26 is a new framework material. 
     SUMMARY OF THE INVENTION 
     ITQ-26 (INSTITUTO DE TECNOLOGÍA QUÍMICA number 26) is a new crystalline microporous material having a framework of tetrahedral atoms connected by bridging atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework. ITQ-26 is stable to calcination in air, absorbs hydrocarbons, and is catalytically active for hydrocarbon conversion. 
     In one embodiment, the present invention is directed to a new crystalline material that is a silicate compound having a composition mR:aX 2 O 3 :YO 2 .nH 2 O where R is an organic compound, X is any metal capable of tetrahedral coordination such as one or more of B, Ga, Al, Fe, Li, Be, P, Zn, Cr, Mg, Co, Ni, Mn, As, In, Sn, Sb, Ti, and Zr, more preferably one or more trivalent metals capable of tetrahedral coordination, and even more preferably one or more of the elements B, Ga, Al, and Fe, and Y is Si alone or in combination with any other tetravalent metal capable of tetrahedral coordination such as Ge and Ti and where m=0.01-1, a=0.00-0.2, and n=0-10 and having a unique diffraction pattern as given in Table 2. 
     In a more specific embodiment, the present invention is directed to a calcined crystalline silicate compound that has a composition aX 2 O 3 :YO 2 .nH 2 O, where X is any metal capable of tetrahedral coordination such as one or more of B, Ga, Al, Fe, Li, Be, P, Zn, Cr, Mg, Co, Ni, Mn, As, In, Sn, Sb, Ti, and Zr, more preferably one or more trivalent metals capable of tetrahedral coordination, and even more preferably one or more of the elements B, Ga, Al, and Fe, and Y is Si alone or in combination with any other tetravalent metal capable of tetrahedral coordination such as Ge and Ti and where a=0.00-0.2 and n=0-10 and having a unique diffraction pattern as given in Table 3. 
     The present invention also includes a method of synthesizing a crystalline silicate compound having the diffraction pattern similar to Table 2, by mixing together a source of silica, organic structure directing agent (SDA), water, and optional metal and heating at a temperature and time sufficient to crystallize the silicate. 
     The invention includes the use of ITQ-26 to separate hydrocarbons from a hydrocarbon containing stream. 
     The invention also includes the use of ITQ-26 as a hydrocarbon conversion catalyst for converting an organic feedstock to conversion products. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a representation of 1,3-bis-(triethylphosphonium-methyl)-benzene the organic structure directing agent (SDA). 
         FIG. 2  shows the framework structure of ITQ-26 showing only the tetrahedral atoms. There is one unit cell, whose edges are defined by the gray box. 
         FIG. 3  shows the X-ray diffraction pattern of as-synthesized ITQ-26. 
         FIG. 4  shows the X-ray diffraction pattern of calcined/dehydrated ITQ-26. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The present invention is a new structure of crystalline material. As with any porous crystalline material, the structure of ITQ-26 can be defined by the interconnections between the tetrahedrally coordinated atoms in its framework. In particular, ITQ-26 has a framework of tetrahedral (T) atoms connected by bridging atoms, wherein the tetrahedral atom framework is defined by connecting the nearest tetrahedral (T) atoms in the manner given in Table 1. 
     
       
         
           
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 ITQ-26 tetrahedral atom interconnections 
               
            
           
           
               
               
               
            
               
                   
                 T atom 
                 Connected to: 
               
               
                   
                   
               
               
                   
                 T1 
                 T2, T5, T56, T68 
               
               
                   
                 T2 
                 T1, T4, T57, T69 
               
               
                   
                 T3 
                 T4, T17, T24, T43 
               
               
                   
                 T4 
                 T2, T3, T6, T75 
               
               
                   
                 T5 
                 T1, T7, T116, T120 
               
               
                   
                 T6 
                 T4, T20, T27, T44 
               
               
                   
                 T7 
                 T5, T14, T34, T70 
               
               
                   
                 T8 
                 T9, T12, T53, T65 
               
               
                   
                 T9 
                 T8, T11, T54, T66 
               
               
                   
                 T10 
                 T11, T17, T24, T49 
               
               
                   
                 T11 
                 T9, T10, T13, T72 
               
               
                   
                 T12 
                 T8, T14, T111, T115 
               
               
                   
                 T13 
                 T11, T20, T27, T50 
               
               
                   
                 T14 
                 T7, T12, T40, T67 
               
               
                   
                 T15 
                 T16, T19, T62, T71 
               
               
                   
                 T16 
                 T15, T18, T63, T72 
               
               
                   
                 T17 
                 T3, T10, T18, T31 
               
               
                   
                 T18 
                 T16, T17, T20, T69 
               
               
                   
                 T19 
                 T15, T21, T106, T110 
               
               
                   
                 T20 
                 T6, T13, T18, T32 
               
               
                   
                 T21 
                 T19, T28, T52, T73 
               
               
                   
                 T22 
                 T23, T26, T59, T74 
               
               
                   
                 T23 
                 T22, T25, T60, T75 
               
               
                   
                 T24 
                 T3, T10, T25, T37 
               
               
                   
                 T25 
                 T23, T24, T27, T66 
               
               
                   
                 T26 
                 T22, T28, T101, T105 
               
               
                   
                 T27 
                 T6, T13, T25, T38 
               
               
                   
                 T28 
                 T21, T26, T46, T76 
               
               
                   
                 T29 
                 T30, T33, T56, T68 
               
               
                   
                 T30 
                 T29, T32, T57, T69 
               
               
                   
                 T31 
                 T17, T32, T43, T49 
               
               
                   
                 T32 
                 T20, T30, T31, T63 
               
               
                   
                 T33 
                 T29, T34, T95, T100 
               
               
                   
                 T34 
                 T7, T33, T40, T58 
               
               
                   
                 T35 
                 T36, T39, T53, T65 
               
               
                   
                 T36 
                 T35, T38, T54, T66 
               
               
                   
                 T37 
                 T24, T38, T43, T49 
               
               
                   
                 T38 
                 T27, T36, T37, T60 
               
               
                   
                 T39 
                 T35, T40, T89, T94 
               
               
                   
                 T40 
                 T14, T34, T39, T55 
               
               
                   
                 T41 
                 T42, T45, T59, T74 
               
               
                   
                 T42 
                 T41, T44, T60, T75 
               
               
                   
                 T43 
                 T3, T31, T37, T44 
               
               
                   
                 T44 
                 T6, T42, T43, T57 
               
               
                   
                 T45 
                 T41, T46, T83, T88 
               
               
                   
                 T46 
                 T28, T45, T52, T61 
               
               
                   
                 T47 
                 T48, T51, T62, T71 
               
               
                   
                 T48 
                 T47, T50, T63, T72 
               
               
                   
                 T49 
                 T10, T31, T37, T50 
               
               
                   
                 T50 
                 T13, T48, T49, T54 
               
               
                   
                 T51 
                 T47, T52, T77, T82 
               
               
                   
                 T52 
                 T21, T46, T51, T64 
               
               
                   
                 T53 
                 T8, T35, T54, T55 
               
               
                   
                 T54 
                 T9, T36, T50, T53 
               
               
                   
                 T55 
                 T40, T53, T100, T135 
               
               
                   
                 T56 
                 T1, T29, T57, T58 
               
               
                   
                 T57 
                 T2, T30, T44, T56 
               
               
                   
                 T58 
                 T34, T56, T94, T133 
               
               
                   
                 T59 
                 T22, T41, T60, T61 
               
               
                   
                 T60 
                 T23, T38, T42, T59 
               
               
                   
                 T61 
                 T46, T59, T82, T131 
               
               
                   
                 T62 
                 T15, T47, T63, T64 
               
               
                   
                 T63 
                 T16, T32, T48, T62 
               
               
                   
                 T64 
                 T52, T62, T88, T129 
               
               
                   
                 T65 
                 T8, T35, T66, T67 
               
               
                   
                 T66 
                 T9, T25, T36, T65 
               
               
                   
                 T67 
                 T14, T65, T120, T127 
               
               
                   
                 T68 
                 T1, T29, T69, T70 
               
               
                   
                 T69 
                 T2, T18, T30, T68 
               
               
                   
                 T70 
                 T7, T68, T115, T125 
               
               
                   
                 T71 
                 T15, T47, T72, T73 
               
               
                   
                 T72 
                 T11, T16, T48, T71 
               
               
                   
                 T73 
                 T21, T71, T105, T123 
               
               
                   
                 T74 
                 T22, T41, T75, T76 
               
               
                   
                 T75 
                 T4, T23, T42, T74 
               
               
                   
                 T76 
                 T28, T74, T110, T121 
               
               
                   
                 T77 
                 T51, T78, T123, T131 
               
               
                   
                 T78 
                 T77, T80, T124, T132 
               
               
                   
                 T79 
                 T80, T91, T97, T113 
               
               
                   
                 T80 
                 T78, T79, T81, T136 
               
               
                   
                 T81 
                 T80, T93, T99, T114 
               
               
                   
                 T82 
                 T51, T61, T88, T105 
               
               
                   
                 T83 
                 T45, T84, T121, T129 
               
               
                   
                 T84 
                 T83, T86, T122, T130 
               
               
                   
                 T85 
                 T86, T91, T97, T118 
               
               
                   
                 T86 
                 T84, T85, T87, T134 
               
               
                   
                 T87 
                 T86, T93, T99, T119 
               
               
                   
                 T88 
                 T45, T64, T82, T110 
               
               
                   
                 T89 
                 T39, T90, T127, T133 
               
               
                   
                 T90 
                 T89, T92, T128, T134 
               
               
                   
                 T91 
                 T79, T85, T92, T103 
               
               
                   
                 T92 
                 T90, T91, T93, T132 
               
               
                   
                 T93 
                 T81, T87, T92, T104 
               
               
                   
                 T94 
                 T39, T58, T100, T120 
               
               
                   
                 T95 
                 T33, T96, T125, T135 
               
               
                   
                 T96 
                 T95, T98, T126, T136 
               
               
                   
                 T97 
                 T79, T85, T98, T108 
               
               
                   
                 T98 
                 T96, T97, T99, T130 
               
               
                   
                 T99 
                 T81, T87, T98, T109 
               
               
                   
                 T100 
                 T33, T55, T94, T115 
               
               
                   
                 T101 
                 T26, T102, T123, T131 
               
               
                   
                 T102 
                 T101, T104, T124, T132 
               
               
                   
                 T103 
                 T91, T104, T113, T118 
               
               
                   
                 T104 
                 T93, T102, T103, T128 
               
               
                   
                 T105 
                 T26, T73, T82, T110 
               
               
                   
                 T106 
                 T19, T107, T121, T129 
               
               
                   
                 T107 
                 T106, T109, T122, T130 
               
               
                   
                 T108 
                 T97, T109, T113, T118 
               
               
                   
                 T109 
                 T99, T107, T108, T126 
               
               
                   
                 T110 
                 T19, T76, T88, T105 
               
               
                   
                 T111 
                 T12, T112, T125, T135 
               
               
                   
                 T112 
                 T111, T114, T126, T136 
               
               
                   
                 T113 
                 T79, T103, T108, T114 
               
               
                   
                 T114 
                 T81, T112, T113, T124 
               
               
                   
                 T115 
                 T12, T70, T100, T120 
               
               
                   
                 T116 
                 T5, T117, T127, T133 
               
               
                   
                 T117 
                 T116, T119, T128, T134 
               
               
                   
                 T118 
                 T85, T103, T108, T119 
               
               
                   
                 T119 
                 T87, T117, T118, T122 
               
               
                   
                 T120 
                 T5, T67, T94, T115 
               
               
                   
                 T121 
                 T76, T83, T106, T122 
               
               
                   
                 T122 
                 T84, T107, T119, T121 
               
               
                   
                 T123 
                 T73, T77, T101, T124 
               
               
                   
                 T124 
                 T78, T102, T114, T123 
               
               
                   
                 T125 
                 T70, T95, T111, T126 
               
               
                   
                 T126 
                 T96, T109, T112, T125 
               
               
                   
                 T127 
                 T67, T89, T116, T128 
               
               
                   
                 T128 
                 T90, T104, T117, T127 
               
               
                   
                 T129 
                 T64, T83, T106, T130 
               
               
                   
                 T130 
                 T84, T98, T107, T129 
               
               
                   
                 T131 
                 T61, T77, T101, T132 
               
               
                   
                 T132 
                 T78, T92, T102, T131 
               
               
                   
                 T133 
                 T58, T89, T116, T134 
               
               
                   
                 T134 
                 T86, T90, T117, T133 
               
               
                   
                 T135 
                 T55, T95, T111, T136 
               
               
                   
                 T136 
                 T80, T96, T112, T135 
               
               
                   
                   
               
            
           
         
       
     
     Tetrahedral atoms are those capable of having tetrahedral coordination, including one or more of, but not limiting, lithium, beryllium, boron, magnesium, aluminum, silicon, phosphorous, titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, gallium, germanium, arsenic, indium, tin, and antimony. 
     In one embodiment, this new crystalline silicate compound has a composition mR:aX 2 O 3 :YO 2 .nH 2 O where R is an organic compound, and X is any metal capable of tetrahedral coordination such as one or more of B, Al, Ga, Fe, Li, Be, P, Zn, Cr, Mg, Co, Ni, Mn, As, In, Sn, Sb, Ti, and Zr, more preferably one or more trivalent metals capable of tetrahedral coordination, and even more preferably one or more of the elements B, Ga, Al, and Fe, and Y is Si alone or in combination with any other tetravalent metal capable of tetrahedral coordination such as Ge and Ti and where m=0.01-1, a=0.00-0.2, and n=0-10. This compound has the unique diffraction pattern given in Table 2 and shown in  FIG. 3 . 
     
       
         
           
               
             
               
                 TABLE 2 
               
             
            
               
                   
               
               
                 X-ray diffraction lines for as-synthesized ITQ-26 
               
            
           
           
               
               
               
            
               
                   
                   
                 relative int. 
               
               
                   
                 d (Å) 
                 (%) 
               
               
                   
                   
               
               
                   
                 13.8-13.0 
                 60-100 
               
               
                   
                 12.3-11.6 
                 5-40 
               
               
                   
                 9.09-8.73 
                 30-80  
               
               
                   
                 6.55-6.37 
                 5-50 
               
               
                   
                 4.76-4.66 
                 5-50 
               
               
                   
                 4.49-4.40 
                 20-70  
               
               
                   
                 4.20-4.12 
                 50-100 
               
               
                   
                 3.81-3.75 
                 5-50 
               
               
                   
                 3.69-3.63 
                 5-50 
               
               
                   
                 3.36-3.31 
                 30-80  
               
               
                   
                 2.998-2.959 
                 5-40 
               
               
                   
                 2.846-2.811 
                 5-40 
               
               
                   
                 2.624-2.594 
                 5-40 
               
               
                   
                 2.503-2.476 
                 5-40 
               
               
                   
                 2.366-2.342 
                 5-40 
               
               
                   
                   
               
            
           
         
       
     
     Other embodiments of the new structure include a calcined compound of composition aX 2 O 2 :YO 2 .nH 2 O, where X is any metal capable of tetrahedral coordination such as one or more of B, Ga, Al, Fe, Li, Be, P, Zn, Cr, Mg, Co, Ni, Mn, As, In, Sn, Sb, Ti, and Zr, more preferably one or more trivalent metals capable of tetrahedral coordination, and even more preferably one or more of the elements B, Ga, Al, Fe, and Y is Si alone or in combination with any other tetravalent metal capable of tetrahedral coordination such as Ge and Ti and where a=0.00-0.2, and n=0-10. This compound has the unique diffraction pattern given in Table 3 and  FIG. 4 . 
     
       
         
           
               
             
               
                 TABLE 3 
               
             
            
               
                   
               
               
                 X-ray diffraction lines for calcined/dehydrated ITQ-26 
               
            
           
           
               
               
               
            
               
                   
                 d (Å) 
                 relative int. (%) 
               
               
                   
                   
               
               
                   
                 13.7-13.0 
                 60-100 
               
               
                   
                 12.2-11.6 
                 20-70  
               
               
                   
                 9.63-9.27 
                 1-10 
               
               
                   
                 9.03-8.72 
                 20-70  
               
               
                   
                 6.55-6.39 
                 1-10 
               
               
                   
                 5.01-4.91 
                 1-10 
               
               
                   
                 4.75-4.66 
                 1-20 
               
               
                   
                 4.50-4.42 
                 1-20 
               
               
                   
                 4.39-4.32 
                 1-10 
               
               
                   
                 4.21-4.14 
                 1-20 
               
               
                   
                 4.17-4.10 
                 1-20 
               
               
                   
                 3.82-3.76 
                 1-10 
               
               
                   
                 3.70-3.65 
                 1-20 
               
               
                   
                 3.37-3.32 
                 1-20 
               
               
                   
                 3.33-3.29 
                 1-10 
               
               
                   
                 3.14-3.10 
                 1-10 
               
               
                   
                   
               
            
           
         
       
     
     This new compound is made by the method of mixing together a source of silica, organic structure directing agent (SDA), water, and optional source of metal and heating at a temperature and time sufficient to crystallize the silicate. The method is described below. 
     The synthetic porous crystalline material of this invention, ITQ-26, is a crystalline phase which has a unique 3-dimensional channel system comprising intersecting 12-membered rings of tetrahedrally coordinated atoms. The 12-membered ring channels have cross-sectional dimensions between the bridging oxygen atoms of about 7.8 Ångströms by about 6.8 Ångströms along one direction and about 7.1 Ångströms by about 6.6 Ångströms along the other two directions. 
     Variations in the X-ray diffraction pattern may occur between the different chemical composition forms of ITQ-26, such that the exact ITQ-26 structure can vary due its particular composition and whether or not it has been calcined and rehydrated. 
     In the as-synthesized form ITQ-26 has a characteristic X-ray diffraction pattern, the essential lines of which are given in Table 2 measured with Cu Kα radiation. Variations occur as a function of specific composition and its loading in the structure. For this reason the intensities and d-spacings are given as ranges. 
     The ITQ-26 material of the present invention may be calcined to remove the organic templating agent without loss of crystallinity. This is useful for activating the material for subsequent absorption of other guest molecules such as hydrocarbons. The essential lines, which uniquely define calcined/dehydrated ITQ-26 are shown in Table 3 measured with synchrotron radiation. Variations occur as a function of specific composition, temperature and the level of hydration in the structure. For this reason the intensities and d-spacings are given as ranges. 
     In addition, to describing the structure of ITQ-26 by the interconnections of the tetrahedral atoms as in Table 1 above, it may be defined by its unit cell, which is the smallest repeating unit containing all the structural elements of the material. The pore structure of ITQ-26 is illustrated in  FIG. 2  (which shows only the tetrahedral atoms) down the direction of the 12-membered ring channels. There is a single unit cell unit in  FIG. 2 , whose limits are defined by the box. Table 4 lists the typical positions of each tetrahedral atom in the unit cell in units of Ångströms. Each tetrahedral atom is bonded to bridging atoms, which are also bonded to adjacent tetrahedral atoms. Tetrahedral atoms are those capable of having tetrahedral coordination, including one or more of, but not limiting, lithium, beryllium, boron, magnesium, aluminum, silicon, phosphorous, titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, gallium, germanium, arsenic, indium, tin, and antimony. Bridging atoms are those capable of connecting two tetrahedral atoms, examples which include, but not limiting, oxygen, nitrogen, fluorine, sulfur, selenium, and carbon atoms. 
     In the case of oxygen, it is also possible that the bridging oxygen is also connected to a hydrogen atom to form a hydroxyl group (—OH—). In the case of carbon it is also possible that the carbon is also connected to two hydrogen atoms to form a methylene group (—CH 2 —). For example, bridging methylene groups have been seen in the zirconium diphosphonate, MIL-57. See: C. Serre, G. Férey,  J. Mater. Chem.  12, p. 2367 (2002). Bridging sulfur and selenium atoms have been seen in the UCR-20-23 family of microporous materials. See: N. Zheng, X. Bu, B. Wang, P. Feng,  Science  298, p. 2366 (2002). Bridging fluorine atoms have been seen in lithium hydrazinium fluoroberyllate, which has the ABW structure type. See: M. R. Anderson, I. D. Brown, S. Vilminot,  Acta Cryst . B29, p. 2626 (1973). Since tetrahedral atoms may move about due to other crystal forces (presence of inorganic or organic species, for example), or by the choice of tetrahedral and bridging atoms, a range of ±1.0 Ångström is implied for the x and y coordinate positions and a range of ±0.5 Ångström for the z coordinate positions. 
     
       
         
           
               
             
               
                 TABLE 4 
               
             
            
               
                   
               
               
                 Positions of tetrahedral (T) atoms for the ITQ-26 structure. Values, in 
               
               
                 units of Ångströms, are approximate and are typical when T = 
               
               
                 silicon and the bridging atoms are oxygen. 
               
            
           
           
               
               
               
               
               
            
               
                   
                 Atom 
                 x (Å) 
                 y (Å) 
                 z (Å) 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 T1 
                 1.559 
                 8.591 
                 1.558 
               
               
                   
                 T2 
                 1.559 
                 5.478 
                 1.559 
               
               
                   
                 T3 
                 1.559 
                 1.559 
                 5.056 
               
               
                   
                 T4 
                 2.791 
                 2.791 
                 2.490 
               
               
                   
                 T5 
                 2.352 
                 11.023 
                 3.307 
               
               
                   
                 T6 
                 1.531 
                 1.531 
                 0.000 
               
               
                   
                 T7 
                 0.000 
                 11.844 
                 5.084 
               
               
                   
                 T8 
                 25.191 
                 18.159 
                 1.558 
               
               
                   
                 T9 
                 25.191 
                 21.272 
                 1.559 
               
               
                   
                 T10 
                 25.191 
                 25.191 
                 5.056 
               
               
                   
                 T11 
                 23.959 
                 23.959 
                 2.490 
               
               
                   
                 T12 
                 24.398 
                 15.727 
                 3.307 
               
               
                   
                 T13 
                 25.219 
                 25.219 
                 0.000 
               
               
                   
                 T14 
                 0.000 
                 14.906 
                 5.084 
               
               
                   
                 T15 
                 18.159 
                 1.559 
                 1.558 
               
               
                   
                 T16 
                 21.272 
                 1.559 
                 1.559 
               
               
                   
                 T17 
                 25.191 
                 1.559 
                 5.056 
               
               
                   
                 T18 
                 23.959 
                 2.791 
                 2.490 
               
               
                   
                 T19 
                 15.727 
                 2.352 
                 3.307 
               
               
                   
                 T20 
                 25.219 
                 1.531 
                 0.000 
               
               
                   
                 T21 
                 14.906 
                 0.000 
                 5.084 
               
               
                   
                 T22 
                 8.591 
                 25.191 
                 1.558 
               
               
                   
                 T23 
                 5.478 
                 25.191 
                 1.559 
               
               
                   
                 T24 
                 1.559 
                 25.191 
                 5.056 
               
               
                   
                 T25 
                 2.791 
                 23.959 
                 2.490 
               
               
                   
                 T26 
                 11.023 
                 24.398 
                 3.307 
               
               
                   
                 T27 
                 1.531 
                 25.219 
                 0.000 
               
               
                   
                 T28 
                 11.844 
                 0.000 
                 5.084 
               
               
                   
                 T29 
                 25.191 
                 8.591 
                 11.672 
               
               
                   
                 T30 
                 25.191 
                 5.478 
                 11.671 
               
               
                   
                 T31 
                 25.191 
                 1.559 
                 8.174 
               
               
                   
                 T32 
                 23.959 
                 2.791 
                 10.740 
               
               
                   
                 T33 
                 24.398 
                 11.023 
                 9.922 
               
               
                   
                 T34 
                 0.000 
                 11.844 
                 8.146 
               
               
                   
                 T35 
                 1.559 
                 18.159 
                 11.672 
               
               
                   
                 T36 
                 1.559 
                 21.272 
                 11.671 
               
               
                   
                 T37 
                 1.559 
                 25.191 
                 8.174 
               
               
                   
                 T38 
                 2.791 
                 23.959 
                 10.740 
               
               
                   
                 T39 
                 2.352 
                 15.727 
                 9.922 
               
               
                   
                 T40 
                 0.000 
                 14.906 
                 8.146 
               
               
                   
                 T41 
                 8.591 
                 1.559 
                 11.672 
               
               
                   
                 T42 
                 5.478 
                 1.559 
                 11.671 
               
               
                   
                 T43 
                 1.559 
                 1.559 
                 8.174 
               
               
                   
                 T44 
                 2.791 
                 2.791 
                 10.740 
               
               
                   
                 T45 
                 11.023 
                 2.352 
                 9.922 
               
               
                   
                 T46 
                 11.844 
                 0.000 
                 8.146 
               
               
                   
                 T47 
                 18.159 
                 25.191 
                 11.672 
               
               
                   
                 T48 
                 21.272 
                 25.191 
                 11.671 
               
               
                   
                 T49 
                 25.191 
                 25.191 
                 8.174 
               
               
                   
                 T50 
                 23.959 
                 23.959 
                 10.740 
               
               
                   
                 T51 
                 15.727 
                 24.398 
                 9.922 
               
               
                   
                 T52 
                 14.906 
                 0.000 
                 8.146 
               
               
                   
                 T53 
                 25.191 
                 18.159 
                 11.672 
               
               
                   
                 T54 
                 25.191 
                 21.272 
                 11.671 
               
               
                   
                 T55 
                 24.398 
                 15.727 
                 9.922 
               
               
                   
                 T56 
                 1.559 
                 8.591 
                 11.672 
               
               
                   
                 T57 
                 1.559 
                 5.478 
                 11.671 
               
               
                   
                 T58 
                 2.352 
                 11.023 
                 9.922 
               
               
                   
                 T59 
                 8.591 
                 25.191 
                 11.672 
               
               
                   
                 T60 
                 5.478 
                 25.191 
                 11.671 
               
               
                   
                 T61 
                 11.023 
                 24.398 
                 9.922 
               
               
                   
                 T62 
                 18.159 
                 1.559 
                 11.672 
               
               
                   
                 T63 
                 21.272 
                 1.559 
                 11.671 
               
               
                   
                 T64 
                 15.727 
                 2.352 
                 9.922 
               
               
                   
                 T65 
                 1.559 
                 18.159 
                 1.558 
               
               
                   
                 T66 
                 1.559 
                 21.272 
                 1.559 
               
               
                   
                 T67 
                 2.352 
                 15.727 
                 3.307 
               
               
                   
                 T68 
                 25.191 
                 8.591 
                 1.558 
               
               
                   
                 T69 
                 25.191 
                 5.478 
                 1.559 
               
               
                   
                 T70 
                 24.398 
                 11.023 
                 3.307 
               
               
                   
                 T71 
                 18.159 
                 25.191 
                 1.558 
               
               
                   
                 T72 
                 21.272 
                 25.191 
                 1.559 
               
               
                   
                 T73 
                 15.727 
                 24.398 
                 3.307 
               
               
                   
                 T74 
                 8.591 
                 1.559 
                 1.558 
               
               
                   
                 T75 
                 5.478 
                 1.559 
                 1.559 
               
               
                   
                 T76 
                 11.023 
                 2.352 
                 3.307 
               
               
                   
                 T77 
                 14.934 
                 21.966 
                 8.173 
               
               
                   
                 T78 
                 14.934 
                 18.853 
                 8.174 
               
               
                   
                 T79 
                 14.934 
                 14.934 
                 11.671 
               
               
                   
                 T80 
                 16.166 
                 16.166 
                 9.105 
               
               
                   
                 T81 
                 14.906 
                 14.906 
                 6.615 
               
               
                   
                 T82 
                 13.375 
                 25.219 
                 11.699 
               
               
                   
                 T83 
                 11.816 
                 4.784 
                 8.173 
               
               
                   
                 T84 
                 11.816 
                 7.897 
                 8.174 
               
               
                   
                 T85 
                 11.816 
                 11.816 
                 11.671 
               
               
                   
                 T86 
                 10.584 
                 10.584 
                 9.105 
               
               
                   
                 T87 
                 11.844 
                 11.844 
                 6.615 
               
               
                   
                 T88 
                 13.375 
                 1.531 
                 11.699 
               
               
                   
                 T89 
                 4.784 
                 14.934 
                 8.173 
               
               
                   
                 T90 
                 7.897 
                 14.934 
                 8.174 
               
               
                   
                 T91 
                 11.816 
                 14.934 
                 11.671 
               
               
                   
                 T92 
                 10.584 
                 16.166 
                 9.105 
               
               
                   
                 T93 
                 11.844 
                 14.906 
                 6.615 
               
               
                   
                 T94 
                 1.531 
                 13.375 
                 11.699 
               
               
                   
                 T95 
                 21.966 
                 11.816 
                 8.173 
               
               
                   
                 T96 
                 18.853 
                 11.816 
                 8.174 
               
               
                   
                 T97 
                 14.934 
                 11.816 
                 11.671 
               
               
                   
                 T98 
                 16.166 
                 10.584 
                 9.105 
               
               
                   
                 T99 
                 14.906 
                 11.844 
                 6.615 
               
               
                   
                 T100 
                 25.219 
                 13.375 
                 11.699 
               
               
                   
                 T101 
                 11.816 
                 21.966 
                 5.057 
               
               
                   
                 T102 
                 11.816 
                 18.853 
                 5.056 
               
               
                   
                 T103 
                 11.816 
                 14.934 
                 1.559 
               
               
                   
                 T104 
                 10.584 
                 16.166 
                 4.125 
               
               
                   
                 T105 
                 13.375 
                 25.219 
                 1.531 
               
               
                   
                 T106 
                 14.934 
                 4.784 
                 5.057 
               
               
                   
                 T107 
                 14.934 
                 7.897 
                 5.056 
               
               
                   
                 T108 
                 14.934 
                 11.816 
                 1.559 
               
               
                   
                 T109 
                 16.166 
                 10.584 
                 4.125 
               
               
                   
                 T110 
                 13.375 
                 1.531 
                 1.531 
               
               
                   
                 T111 
                 21.966 
                 14.934 
                 5.057 
               
               
                   
                 T112 
                 18.853 
                 14.934 
                 5.056 
               
               
                   
                 T113 
                 14.934 
                 14.934 
                 1.559 
               
               
                   
                 T114 
                 16.166 
                 16.166 
                 4.125 
               
               
                   
                 T115 
                 25.219 
                 13.375 
                 1.531 
               
               
                   
                 T116 
                 4.784 
                 11.816 
                 5.057 
               
               
                   
                 T117 
                 7.897 
                 11.816 
                 5.056 
               
               
                   
                 T118 
                 11.816 
                 11.816 
                 1.559 
               
               
                   
                 T119 
                 10.584 
                 10.584 
                 4.125 
               
               
                   
                 T120 
                 1.531 
                 13.375 
                 1.531 
               
               
                   
                 T121 
                 11.816 
                 4.784 
                 5.057 
               
               
                   
                 T122 
                 11.816 
                 7.897 
                 5.056 
               
               
                   
                 T123 
                 14.934 
                 21.966 
                 5.057 
               
               
                   
                 T124 
                 14.934 
                 18.853 
                 5.056 
               
               
                   
                 T125 
                 21.966 
                 11.816 
                 5.057 
               
               
                   
                 T126 
                 18.853 
                 11.816 
                 5.056 
               
               
                   
                 T127 
                 4.784 
                 14.934 
                 5.057 
               
               
                   
                 T128 
                 7.897 
                 14.934 
                 5.056 
               
               
                   
                 T129 
                 14.934 
                 4.784 
                 8.173 
               
               
                   
                 T130 
                 14.934 
                 7.897 
                 8.174 
               
               
                   
                 T131 
                 11.816 
                 21.966 
                 8.173 
               
               
                   
                 T132 
                 11.816 
                 18.853 
                 8.174 
               
               
                   
                 T133 
                 4.784 
                 11.816 
                 8.173 
               
               
                   
                 T134 
                 7.897 
                 11.816 
                 8.174 
               
               
                   
                 T135 
                 21.966 
                 14.934 
                 8.173 
               
               
                   
                 T136 
                 18.853 
                 14.934 
                 8.174 
               
               
                   
                   
               
            
           
         
       
     
     The complete structure of ITQ-26 is built by connecting multiple unit cells as defined above in a fully-connected three-dimensional framework. The tetrahedral atoms in one unit cell are connected to certain tetrahedral atoms in all of its adjacent unit cells. While Table 1 lists the connections of all the tetrahedral atoms for a given unit cell of ITQ-26, the connections may not be to the particular atom in the same unit cell but to an adjacent unit cell. All of the connections listed in Table 1 are such that they are to the closest tetrahedral (T) atoms, regardless of whether they are in the same unit cell or in adjacent unit cells. 
     Although the Cartesian coordinates given in Table 4 may accurately reflect the positions of tetrahedral atoms in an idealized structure, the true structure can be more accurately described by the connectivity between the framework atoms as shown in Table 1 above. 
     Another way to describe this connectivity is by the use of coordination sequences as applied to microporous frameworks by W. M. Meier and H. J. Moeck, in the  Journal of Solid State Chemistry  27, p. 349 (1979). In a microporous framework, each tetrahedral atom, No, (T-atom) is connected to N 1 =4 neighboring T-atoms through bridging atoms (typically oxygen). These neighboring T-atoms are then connected to N 2  T-atoms in the next shell. The N 2  atoms in the second shell are connected to N 3  T-atoms in the third shell, and so on. Each T-atom is only counted once, such that, for example, if a T-atom is in a 4-membered ring, at the fourth shell the No atom is not counted second time, and so on. Using this methodology, a coordination sequence can be determined for each unique T-atom of a 4-connected net of T-atoms. The following line lists the maximum number of T-atoms for each shell.
 
N 0 =1 N 1 ≦4 N 2 ≦12 N 3 ≦36 N k ≦4·3 k-1  
 
     
       
         
           
               
             
               
                 TABLE 5 
               
             
            
               
                   
               
               
                 Coordination sequence for ITQ-26 structure. 
               
            
           
           
               
               
               
            
               
                 atom 
                 atom 
                   
               
               
                 number 
                 label 
                 coordination sequence 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
               
               
               
               
               
               
            
               
                 1 
                 T(1) 
                 4 
                 9 
                 18 
                 31 
                 47 
                 66 
                 94 
                 127 
                 159 
                 188 
                 226 
                 287 
                 345 
               
               
                 2 
                 T(2) 
                 4 
                 9 
                 17 
                 29 
                 44 
                 68 
                 97 
                 125 
                 154 
                 190 
                 240 
                 292 
                 338 
               
               
                 3 
                 T(3) 
                 4 
                 9 
                 18 
                 30 
                 42 
                 60 
                 89 
                 126 
                 162 
                 188 
                 222 
                 281 
                 349 
               
               
                 4 
                 T(4) 
                 4 
                 12 
                 18 
                 27 
                 48 
                 69 
                 94 
                 124 
                 160 
                 201 
                 237 
                 285 
                 330 
               
               
                 5 
                 T(5) 
                 4 
                 12 
                 17 
                 30 
                 46 
                 67 
                 90 
                 124 
                 158 
                 186 
                 230 
                 279 
                 344 
               
               
                 6 
                 T(6) 
                 4 
                 11 
                 20 
                 24 
                 36 
                 72 
                 110 
                 126 
                 136 
                 182 
                 256 
                 306 
                 326 
               
               
                 7 
                 T(7) 
                 4 
                 11 
                 20 
                 28 
                 42 
                 70 
                 100 
                 120 
                 146 
                 186 
                 232 
                 291 
                 349 
               
               
                   
               
            
           
         
       
     
     One way to determine the coordination sequence for a given structure is from the atomic coordinates of the framework atoms using the computer program zeoTsites (see G. Sastre, J. D. Gale,  Microporous and mesoporous Materials  43, p. 27 (2001). 
     The coordination sequence for the ITQ-26 structure is given in Table 5. The T-atom connectivity as listed in Table 1 and is for T-atoms only. Bridging atoms, such as oxygen usually connects the T-atoms. Although most of the T-atoms are connected to other T-atoms through bridging atoms, it is recognized that in a particular crystal of a material having a framework structure, it is possible that a number of T-atoms may not connected to one another. Reasons for non-connectivity include, but are not limited by; T-atoms located at the edges of the crystals and by defects sites caused by, for example, vacancies in the crystal. The framework listed in Table 1 and Table 5 is not limited in any way by its composition, unit cell dimensions or space group symmetry. 
     While the idealized structure contains only 4-coordinate T-atoms, it is possible under certain conditions that some of the framework atoms may be 5- or 6-coordinate. This may occur, for example, under conditions of hydration when the composition of the material contains mainly phosphorous and aluminum T-atoms. When this occurs it is found that T-atoms may be also coordinated to one or two oxygen atoms of water molecules (—OH 2 ), or of hydroxyl groups (—OH). For example, the molecular sieve AlPO 4 -34 is known to reversibly change the coordination of some aluminum T-atoms from 4-coordinate to 5- and 6-coordinate upon hydration as described by A. Tuel et al. in  J. Phys. Chem. B  104, p. 5697 (2000). It is also possible that some framework T-atoms can be coordinated to fluoride atoms (—F) when materials are prepared in the presence of fluorine to make materials with 5-coordinate T-atoms as described by H. Koller in  J. Am. Chem. Soc.  121, p. 3368 (1999). 
     The invention also includes a method of synthesizing a crystalline silicate composition of ITQ-26 having the diffraction pattern similar to Table 2 by mixing together a source of silica, organic structure directing agent (SDA), water, and optional metal, X, with a composition, in terms of mole ratios, within the following ranges: 
                                                R/YO 2     0.01-1              H 2 O/YO 2     2-50           X/YO 2     0-.2                         
and preferably within the following ranges:
 
                                                R/YO 2     0.1-.5            H 2 O/YO 2     5-20           X/YO 2     0-.1                         
and X is any metal capable of tetrahedral coordination such as one or more of B, Ga, Al, Fe, Li, Be, P, Zn, Cr, Mg, Co, Ni, Be, Mn, As, In, Sn, Sb, Ti, and Zr, more preferably one or more trivalent metals capable of tetrahedral coordination, and even more preferably one or more of the elements B, Ga, Al, and Fe, and Y is Si alone or in combination with any other tetravalent metal capable of tetrahedral coordination such as Ge and Ti.
 
     Said organic structure directing agent (SDA) is preferably 1,3-bis-(triethylphosphoniummethyl)-benzene. See  FIG. 1 . Sources of silica can be colloidal, fumed or precipitated silica, silica gel, sodium or potassium silicates, or organic silicon such as tetraethylorthosilicate, etc. Sources of metal can be boric acid, germanium (IV) ethoxide, germanium oxide, germanium nitrate, aluminum nitrate, sodium aluminate, aluminum sulfate, aluminum hydroxide, aluminum chloride and various salts of the metals X such as iron nitrate, iron chloride, and gallium nitrate, etc. The mixture is then heated at a temperature and time sufficient to crystallize the silicate. 
     To the extent desired and depending on the X 2 O 3 /YO 2  molar ratio of the material, any cations present in the as-synthesized ITQ-26 can be replaced in accordance with techniques well known in the art by ion exchange with other cations. Preferred replacing cations include metal ions, hydrogen ions, and hydrogen precursor, e.g., ammonium ions and mixtures thereof. Particularly preferred cations are those which tailor the catalytic activity for certain hydrocarbon conversion reactions. These include hydrogen, rare earth metals and metals of Groups IIA, IIIA, IVA, VA, IB, IIB, IIIB, IVB, VB, VIB, VIIB and VIII of the Periodic Table of the Elements. 
     The crystalline material of this invention can be used to catalyze a wide variety of chemical conversion processes, particularly organic compound conversion processes, including many of present commercial/industrial importance. Examples of chemical conversion processes which are effectively catalyzed by the crystalline material of this invention, by itself or in combination with one or more other catalytically active substances including other crystalline catalysts, include those requiring a catalyst with acid activity. 
     Thus, in its active form ITQ-26 can exhibit a high acid activity, which can be measured with the alpha test. Alpha value is an approximate indication of the catalytic cracking activity of the catalyst compared to a standard catalyst and it gives the relative rate constant (rate of normal hexane conversion per volume of catalyst per unit time). It is based on the activity of silica-alumina cracking catalyst taken as an Alpha of 1 (Rate Constant=0.016 sec −1 ). The Alpha Test is described in U.S. Pat. No. 3,354,078; in the  Journal of Catalysis  4, 527 (1965); 6, 278 (1966); and 61, 395 (1980), each incorporated herein by reference as to that description. The experimental conditions of the test used herein include a constant temperature of 538° C. and a variable flow rate as described in detail in the  Journal of Catalysis  61, 395 (1980). 
     When used as a catalyst, the crystalline material of the invention may be subjected to treatment to remove part or all of any organic constituent. This is conveniently effected by thermal treatment in which the as-synthesized material is heated at a temperature of at least about 370° C. for at least 1 minute and generally not longer than 20 hours. While subatmospheric pressure can be employed for the thermal treatment, atmospheric pressure is desired for reasons of convenience. The thermal treatment can be performed at a temperature up to about 927° C. The thermally treated product, especially in its metal, hydrogen and ammonium forms, is particularly useful in the catalysis of certain organic, e.g., hydrocarbon, conversion reactions. 
     When used as a catalyst, the crystalline material can be intimately combined with a hydrogenating component such as tungsten, vanadium, molybdenum, rhenium, nickel, cobalt, chromium, manganese, or a noble metal such as, but not limited to, platinum or palladium where a hydrogenation-dehydrogenation function is to be performed. Such component can be in the composition by way of co-crystallization, exchanged into the composition to the extent a Group IIIA element, e.g., aluminum, is in the structure, impregnated therein or intimately physically admixed therewith. Such component can be impregnated in or on to it such as, for example, by, in the case of platinum, treating ITQ-26 with a solution containing a platinum metal-containing ion. Thus, suitable platinum compounds for this purpose include chloroplatinic acid, platinous chloride and various compounds containing the platinum amine complex. 
     The crystalline material of this invention, when employed either as an adsorbent or as a catalyst in an organic compound conversion process should be dehydrated, at least partially. This can be done by heating to a temperature in the range of 100° C. to about 370° C. in an atmosphere such as air, nitrogen, etc., and at atmospheric, subatmospheric or superatmospheric pressures for between 30 minutes and 48 hours. Dehydration can also be performed at room temperature merely by placing the ITQ-26 in a vacuum, but a longer time is required to obtain a sufficient amount of dehydration. 
     As in the case of many catalysts, it may be desirable to incorporate the new crystal with another material resistant to the temperatures and other conditions employed in organic conversion processes. Such materials include active and inactive materials and synthetic or naturally occurring zeolites as well as inorganic materials such as clays, silica and/or metal oxides such as alumina. The latter may be either naturally occurring or in the form of gelatinous precipitates or gels including mixtures of silica and metal oxides. Use of a material in conjunction with the new crystal, i.e., combined therewith or present during synthesis of the new crystal, which is active, tends to change the conversion and/or selectivity of the catalyst in certain organic conversion processes. Inactive materials suitably serve as diluents to control the amount of conversion in a given process so that products can be obtained economically and orderly without employing other means for controlling the rate of reaction. These materials may be incorporated into naturally occurring clays, e.g., bentonite and kaolin, to improve the crush strength of the catalyst under commercial operating conditions. Said materials, i.e., clays, oxides, etc., function as binders for the catalyst. It is desirable to provide a catalyst having good crush strength because in commercial use it is desirable to prevent the catalyst from breaking down into powder-like materials. These clay and/or oxide binders have been employed normally only for the purpose of improving the crush strength of the catalyst. 
     Naturally occurring clays which can be composited with the new crystal include the montmorillonite and kaolin family, which families include the subbentonites, and the kaolins commonly known as Dixie, McNamee, Georgia and Florida clays or others in which the main mineral constituent is halloysite, kaolinite, dickite, nacrite, or anauxite. Such clays can be used in the raw state as originally mined or initially subjected to calcination, acid treatment or chemical modification. Binders useful for compositing with the present crystal also include inorganic oxides, such as silica, zirconia, titania, magnesia, beryllia, alumina, and mixtures thereof. 
     In addition to the foregoing materials, the new crystal can be composited with a porous matrix material such as silica-alumina, silica-magnesia, silica-zirconia, silica-thoria, silica-beryllia, silica-titania as well as ternary compositions such as silica-alumina-thoria, silica-alumina-zirconia silica-alumina-magnesia and silica-magnesia-zirconia. 
     The relative proportions of finely divided crystalline material and inorganic oxide matrix vary widely, with the crystal content ranging from about 1 to about 90 percent by weight and more usually, particularly when the composite is prepared in the form of beads, in the range of about 2 to about 80 weight percent of the composite. 
     In order to more fully illustrate the nature of the invention and the manner of practicing same, the following example is presented. 
     EXAMPLE 1 
     Synthesis of ITQ-26 
     The germanium containing gel was prepared, according to the following description: 0.62 of germanium oxide were dissolved in 24.19 g of a solution of 1,3-bis-(triethylphosphoniummethyl)-benzene hydroxide ( FIG. 1 ) with a concentration of 0.62 mol of OH −  in 1000 g of solution. Then, 5.02 g of tetraethylorthosilicate were hydrolyzed in that solution and the mixture was left to evaporate under stirring until complete evaporation of the ethanol formed was achieved. When the weight reached 8.62 g of gel, 0.62 g of HF (48.1% wt.) were added and the mixture was homogenized. The final composition of the gel was:
 
0.80Si0 2 : 0.20Ge0 2 : 0.25  m -B(Et 3 P) 2 (OH) 2 : 0.50 HF: 7.50H 2 0
 
     The mixture was transferred to Teflon-lined stainless steel autoclaves and heated under stirring for 6 days at 175° C. Longer crystallization times gave impure ITQ-26 with a small amount of polymorph C of Beta zeolite. 
     The powder X-ray diffractogram of the sample as made and calcined is shown in  FIG. 3  and  FIG. 4  below. The sample was calcined in air to 550° C. for 3 hours, cooled down to 300° C., and then sealed under vacuum in a 2 mm quartz capillary tube to minimize structural damage. 
     The X-ray diffraction patterns are given in Table 6 and Table 7, respectively. 
     The porosity of the calcined material was measured by adsorbing nitrogen and argon. Adsorption measurements were carried out by manipulating the sample in an inert atmosphere. The results obtained are:
         BET surface area: 257 m 2 /g   Micropore area: 243 m 2 /g   Micropore volume: 0.12 cm 3 /g   Pore diameter: 7.1 Å       

     That data suggest that ITQ-26 is a large pore (12-ring pore aperture) zeolite. This is confirmed by the structure discussed above. 
     EXAMPLE 2 
     Synthesis of ITQ-26 
     The germanium containing gel was prepared, according to the following description: 0.75 of germanium oxide were dissolved in 22.5 g of a solution of 15% wt. 1,3-bis-(triethylphosphoniummethyl)-benzene hydroxide. Then, 6.01 g of tetraethylorthosilicate were hydrolyzed in that solution and the mixture was left to evaporate under stirring until complete evaporation of the ethanol formed was achieved. When the weight reached 10.3 g of gel, 0.74 g of HF (49% wt.) were added and the mixture was homogenized. The final composition of the gel was:
 
0.80 Si0 2 : 0.20 Ge0 2 : 0.25  m -B(Et 3 P) 2 (OH) 2 : 0.50 HF: 7.50H 2 0
 
     The mixture was transferred to a Teflon-lined stainless steel autoclave and heated for 6 days at 175° C. with a tumbling rate of 20 rpm. The sample was recovered by filtration, washed with deionized water and then dried in an 115° C. oven. The X-ray diffraction pattern was measured with Cu Kα radiation and is similar to that given in Table 6 and  FIG. 3 . Analysis of the X-ray diffraction pattern showed the sample to be pure ITQ-26. 
     
       
         
           
               
             
               
                 TABLE 6 
               
             
            
               
                   
               
               
                 X-ray powder diffraction lines of as-made ITQ-26 
               
               
                 (Cu Kα radiation) 
               
            
           
           
               
               
               
            
               
                 2-Theta 
                 d (Å) 
                 I % 
               
               
                   
               
            
           
           
               
               
               
            
               
                 4.63 
                 19.086 
                 3 
               
               
                 6.62 
                 13.348 
                 100 
               
               
                 7.40 
                 11.944 
                 19 
               
               
                 9.43 
                 9.376 
                 8 
               
               
                 9.92 
                 8.907 
                 60 
               
               
                 10.47 
                 8.440 
                 3 
               
               
                 11.94 
                 7.407 
                 6 
               
               
                 13.70 
                 6.460 
                 29 
               
               
                 14.11 
                 6.273 
                 9 
               
               
                 15.21 
                 5.819 
                 1 
               
               
                 16.29 
                 5.437 
                 2 
               
               
                 16.96 
                 5.224 
                 6 
               
               
                 17.87 
                 4.960 
                 10 
               
               
                 18.83 
                 4.709 
                 25 
               
               
                 19.98 
                 4.441 
                 37 
               
               
                 20.26 
                 4.379 
                 5 
               
               
                 21.34 
                 4.160 
                 79 
               
               
                 22.99 
                 3.866 
                 1 
               
               
                 23.30 
                 3.815 
                 5 
               
               
                 23.39 
                 3.801 
                 1 
               
               
                 23.53 
                 3.779 
                 23 
               
               
                 24.29 
                 3.661 
                 30 
               
               
                 25.30 
                 3.518 
                 6 
               
               
                 26.08 
                 3.414 
                 5 
               
               
                 26.72 
                 3.334 
                 54 
               
               
                 27.57 
                 3.233 
                 8 
               
               
                 28.54 
                 3.125 
                 6 
               
               
                 29.98 
                 2.979 
                 19 
               
               
                 31.61 
                 2.828 
                 16 
               
               
                 33.08 
                 2.705 
                 7 
               
               
                 33.65 
                 2.661 
                 5 
               
               
                 34.34 
                 2.609 
                 13 
               
               
                 36.04 
                 2.490 
                 14 
               
               
                 37.08 
                 2.423 
                 8 
               
               
                 38.20 
                 2.354 
                 16 
               
               
                 40.65 
                 2.218 
                 8 
               
               
                 43.52 
                 2.078 
                 8 
               
               
                 46.32 
                 1.959 
                 6 
               
               
                 48.38 
                 1.880 
                 4 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 7 
               
             
            
               
                   
               
               
                 X-ray powder diffraction lines of calcined/dehydrated ITQ-26 
               
               
                 (Synchrotron radiation, λ = 0.8702 Å) 
               
            
           
           
               
               
               
            
               
                 2-Theta 
                 d (A) 
                 I % 
               
               
                   
               
            
           
           
               
               
               
            
               
                 2.64 
                 18.907 
                 1 
               
               
                 3.73 
                 13.376 
                 100 
               
               
                 4.20 
                 11.864 
                 41 
               
               
                 5.28 
                 9.449 
                 4 
               
               
                 5.62 
                 8.873 
                 42 
               
               
                 6.75 
                 7.390 
                 1 
               
               
                 7.46 
                 6.692 
                 1 
               
               
                 7.54 
                 6.622 
                 2 
               
               
                 7.71 
                 6.469 
                 4 
               
               
                 7.97 
                 6.259 
                 1 
               
               
                 9.58 
                 5.210 
                 2 
               
               
                 10.07 
                 4.959 
                 4 
               
               
                 10.60 
                 4.709 
                 8 
               
               
                 11.20 
                 4.459 
                 7 
               
               
                 11.47 
                 4.353 
                 3 
               
               
                 11.80 
                 4.232 
                 2 
               
               
                 11.97 
                 4.173 
                 9 
               
               
                 12.07 
                 4.139 
                 9 
               
               
                 13.00 
                 3.845 
                 1 
               
               
                 13.09 
                 3.819 
                 1 
               
               
                 13.20 
                 3.787 
                 4 
               
               
                 13.61 
                 3.672 
                 5 
               
               
                 14.23 
                 3.514 
                 1 
               
               
                 14.70 
                 3.402 
                 2 
               
               
                 14.95 
                 3.344 
                 9 
               
               
                 15.12 
                 3.307 
                 4 
               
               
                 15.23 
                 3.284 
                 1 
               
               
                 15.46 
                 3.236 
                 2 
               
               
                 15.58 
                 3.211 
                 2 
               
               
                 16.05 
                 3.117 
                 3 
               
               
                 16.74 
                 2.989 
                 2 
               
               
                 16.89 
                 2.963 
                 3 
               
               
                 17.67 
                 2.832 
                 3 
               
               
                 19.20 
                 2.608 
                 3 
               
               
                 21.31 
                 2.353 
                 2