bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reaktionen von Lithiumhydridosilylamiden mit Carbonylverbindungen und Gemischen von Carbonylverbindungen und Chlortrimethylsilan / Reactions of Lithium Hydridosilylamides with Carbonyl Compounds and Mixtures of Carbonyl Compounds and Chlorotrimethylsilane
Authors: Schneider Jan , Popowski Eckhard , Fuhrmann Hans 
Published: February 2015

Abstract
The lithium hydridosilylamides Me2(H)SiN(Li)R (1: R = CMe3, 2: R = SiMe3) were allowed to react either with the non-enolizable carbonyl compounds CH2=C(Me)CHO, PhCHO and Ph2CO followed by trapping with chlorotrimethylsilane (A), or with mixtures of these carbonyl compounds and chlorotrimethylsilane (B). In the second case the course of the reactions is determined by the carbonyl compound. The composition of the reaction mixtures is nearly the same according to A and B.
Main products in the reactions with the aldehydes are the corresponding imines R′CH=NR (R′ =CH2=C(Me), Ph) 3 , 4 , 8 ,9 formed by addition of the hydridosilylamides to the C = O group of the aldehydes and subsequent LiOSiMe2H elimination. Partial hydrosilylation of the aldehydes by the hydridosilanolate followed by the trimethylsilylation yields the alkoxydisiloxanes R'CH2OSiMe2OSiMe3 6 , 11. In some cases 2 partially reacts under hydrosilylation to give the alkoxydisilazanes R'CH2OSiMe2NHSiMe3 7,12.
The hydrosilylation is the preferred reaction of 1 and 2 with benzophenone. The compounds Ph2CHOSiMe2NHR 13, 14 are obtained. This difference in the reaction behaviour of 1 and 2 towards the aldehydes and benzophenone is mainly due to steric reasons. Depending on the conditions the imines Ph2C=NR 20, 21 may be formed. Ph2CHOSiMe2OSiMe3 (22) is a secondary product of imine formation.
In all reactions of 1 and 2 with the carbonyl compounds the corresponding alkoxysilanes R'CH2OSiMe3 (5: R' = CH2=C(Me), 6 : R' = Ph) and Ph2CHOSiMe3 (15) are generated.
Compounds resulting from a reaction of 1 and 2 with chlorotrimethylsilane are produced to minor extent, but only if the molar ratio of amide to carbonyl compounds is not greater than one. The formation of a silanimine intermediate in reaction according to B is not observed.
1.2.3.4-Tetrahydrochinoline als Substrate für Mannich-Verbindungen / 1.2.3.4-Tetrahydroquinolines as Substrates for Mannich Compounds
Authors: Möhrle H. , Tot E. , Rüdiger S. 
Published: February 2015

Abstract
The product of the reaction of 1,2,3,4-tetrahydroquinoline (1) with 2-naphthol (2) and form aldehyde reported as the N -substituted tetrahydroquinoline 3 show s really the structure of the phenylogous bis-substituted tetrahydroquinoline 4. The function of 1, 6 -methyl-1,2,3,4-tetrahydroquinoline (9) and 1-methyl-1,2 ,3 ,4 -tetrahydroquinoline (17) as amines or C -nucleophilic compounds in Mannich condensations were examined .
Über die Darstellung und spektroskopische Charakterisierung von (Me3SiO)3PH+I- / On the Preparation and Spectroscopic Characterization of (Me3SiO)3PH+I-
Authors: Minkwitz Rolf , Schneider Stefan 
Published: February 2015

Abstract
The reaction of Me3SiI with (Me3SiO)2P(O)H leads to tris(trimethylsiloxy)phosphonium iodide (Me3SiO)3PH+I- which has been characterized by vibrational and NMR spectroscopy.
Wechselwirkungen in Molekülkristallen, 144. ortho-Benzol-Derivate mit ineinander verzahnten Trimethylsilyl- Substituenten: Strukturvergleich mit Benzol-1,2-disulfonat-Salzen und Rotationsenthalpie-Hyperflächen/ Interactions in Molecular Crystals, 144, ortho-Benzene Derivatives with Meshed Cogwheel Trimethylsilyl Substituents: Structural Comparison with Benzene-1,2-disulfonate Salts and Rotation Enthalpy Hypersurfaces
Authors: Bock Hans , Nagel Norbert 
Published: February 2015

Abstract
ortho-Benzene derivatives with adjacent bulky propeller substituents are well-suited model compounds to investigate their potentially coupled rotations. To approach the molecular dynamics of 1,2-bis(trimethylsilyl)benzene, a liquid at room temperature and containing heteroelement substituents, an advantageous starting point are the crystal structures of the stereochemically correspondent benzene-1,2-disulfonate dianion salts. For both the rotations of the synperiplanar three-bladed rotor-groups -SO3
⊖ and -Si(CH3)3, PM3-enthalpy hypersurfaces are presented, which suggest only weak interdentate interaction and, concomitantly, only partly coupled intermolecular substituent rotation dynamics. Additional data from the Cambridge Structural Database for silicon organic compounds fit into the contour lines of the enthalpy surface calculated for 1,2-bis(trimethylsilyl)benzene, and the structure correlation with varying distances Si ···Si between the heteroelement centers can be discussed in more general terms of the substituent propeller blade length vs. thickness ratio.
Darstellung, 11B-und 19F-NMR-Spektren des Monofluoropentaiodo- closo-hexaboratanions sowie Kristallstruktur von (CH2Py2)[B6FI5]/ Synthesis, 11B and 19F NMR Spectra of the Monofluoropentaiodo-closo-hexaborate Anion and the Crystal Structure of (CH2Py2)[B6FI5]
Authors: Thomsen H. , Preetz W. 
Published: February 2015

Abstract
By reaction of closo-[B6H5F]2- in alkaline solution with excess iodine the monofluoropentaiodo- closo-hexaborate anion [B6FI5]2- is formed in good yield. The crystal structure of (CH2Py2)[B6FI5] has been determined by single crystal X-ray diffraction analysis (orthorhombic, space group Pnma, a = 13.803(2), b = 11.759(2), c = 13.936(2) Å, Z = 4). The B-F-bond length is 1.41 Å, the B-I distances range from 2.13 to 2.17 Å, the B-B distances from 1.69 to 1.76 A. According to the C4v point symmetry the 11B NMR spectrum of the anion exhibits three singlets at +3.8,-30.1 and-33.3 ppm with the intensity ratio 1:4:1, the 19F NMR spectrum one quartet at -247.6 ppm with the coupling constant 1J (19F, 11B) = 54 Hz.
Tuning the Steric and Electronic Properties of Chiral Rhenium Thiolate Complexes
Authors: Burzlaff Nicolai , Hagel Michael , Schenk Wolfdieter A. 
Published: February 2015

Abstract
Reaction of the complex [CpRe(NO)(CO)2]BF4 with triisopropylphosphine gives the chiral CO substitution product [CpRe(NO){P(i-Pr)3}(CO)]BF4. The corresponding triphenylphosphite complex [CpRe(NO){P(OPh)3}(CO)]BF4 may be obtained by oxidative CO removal. Reduction of the remaining CO ligand with NaBH4 furnishes the corresponding methyl com­plexes [CpRe(NO)(L)(CH3)]. The structure of [CpRe(NO){P(i-Pr)3}(CH3)] was determined: triclinic space group P1̄ (No. 2), a = 8.442(4), b = 9.582(5), c -11.820(8) Å, α= 81.81 (4), β = 87.18(4), γ = 63.87(5)°, Z = 2. Reaction of the methyl complexes with HBF4 in the presence of thiols gives, after chromatographic workup, the thiolate derivatives [CpRe(NO)(L)(SR)] (L = CO, P(OPh)3, P(i-Pr)3, R = CH2Ph, CH2(4-C6H4Cl), CH2(4-C6H4OMe), CH3, C2H5). The structure of [CpRe(NO){P(i-Pr)3}(SCH3)] was determined: monoclinic space group P21 (No. 3), a = 7.0515(7), b = 17.3469(10), c = 7.9727(7) Å, β = 114.021(7)°, Z = 2. In both structures, a significant opening of the angle N-Re-X (X = C, S) suggests that antibonding interactions between orbitals of the ligand X and the second-highest MO of the [CpRe(NO)(L)] complex fragment are avoided.
N-Benzoylthiocarbamoyl Amino Acid Ethyl Esters as Chelate Ligands for Transition Metal Ions
Authors: Leßmann Frank , Beyer Lothar , Richter Rainer , Meusinger Reinhard 
Published: February 2015

Abstract
The reactions of benzoyl isothiocyanate with amino acid ethyl esters (N-butyl glycine ethyl ester, (S)-(-)-proline ethyl ester) give N-benzoylthiocarbamoyl amino acid ethyl esters. Apart from the expected N-benzoylthiocarbamoyl (S)-(-)-proline ethyl ester the racemic N-benzoyl­ thiocarbamoyl (R)/(S)-proline ethyl ester is formed because of base catalyzed racemization of the educt (S)-(-)-proline ethyl ester during the reaction of (S)-(-)-proline ethyl ester hydrochloride with triethylamine. The structures of both compounds were established by X-ray crystal structure analysis and specific optical rotation measurements. The ligands yield neutral 2:1 chelates with NiII, CuII, PdII and PtII. The carboxylic oxygen atoms are not involved in the chelation. The ligands and the resultant complexes show configurational E/Z isomerism. In the case of the chelates of the racemic N-benzoylthiocarbamoyl (R)/(S)-proline ethyl ester, additional R/S isomerism is observed as shown by NMR spectroscopy.
1,2-Bis( 1′,3′ -dimethylimidazolin-2′-iminato)ethan - ein neuer Chelatligand [1] / 1,2-Bis(1′,3′-dimethylimidazolin-2′-iminato)ethane - a Novel Chelating Ligand [1]
Authors: Kuhn Norbert , Grathwohl Martin , Steimann Manfred , Henkel Gerald 
Published: February 2015

Abstract
The reaction of 2-imino-1,3-dimethylimidazoline (10, ImNH) with X-CH2CH2-X (11, X = p-CH3C6H4SO3) gives the diimine adduct ImN-CH2CH2-NIm · 2HX (12) from which the diimine ImN-CH2CH2-NIm (13) is obtained on treatment with KH. 13 reacts with (C6H5CN)2PdCl2 (15) to give the chelate complex (ImN-CH2CH2-NIm)PdCl2 (16). The X-ray structures of 12 and 16 are reported.
Electron Donor-Acceptor Compounds. Synthesis and Structure of 5-(1,4-Benzoquinone-2-yl)-10,15,20-trialkylporphyrins
Authors: Runge Steffen , Senge Mathias O. 
Published: February 2015

Abstract
A series of 5-(benzoquinone)-10,15,20-trialkylporphyrins was synthesized via cross condensation of the respective aldehydes, 2,5-dimethoxybenzaldehyde and pyrrole followed by demethylation with BBr3 and oxidation with PbO2. This method worked reasonably well for compounds bearing the benzoquinone substituent and butyl, isopropyl, 1 -methylpropyl and 2-ethylpropyl residues (2a-d). The free base porphyrin quinones were converted into the zinc(II) complexes (3a-d) all of which showed remarkable stability for porphyrin quinones. The zinc(II) complex 3c bearing isopropyl residues was investigated by X-ray crystallography and showed a supramolecular structure consisting of polymeric chains facilitated by coordina­tion of a benzoquinone oxygen to a neighboring zinc(II) center. Attempts to synthesize a 5-(benzoquinone)-10,15,20-tris(terr-butylporphyrin) resulted in the formation of a yellow porphomethene (4), which could not be oxidized further. A crystal structure analysis of 4, the first for a free base porphomethene, shows an extremely twisted conformation with syn-orientation of the three tert-butyl groups. The results indicate that new methods will have to be developed for the synthesis of nonplanar porphyrin quinones.
Ubergangsmetall-substituierte Phosphane, Arsane und Stibane, LX [1]. Ferrio-(thiocarbamoyl)phosphane Cp(OC)2 Fe-P(Mes)[C(=S)-N(R)H] (R = Me, Et, f-Bu): Aufbau aus dem Ferrio-mesitylphosphan Cp(OC)2 Fe-P(Mes)H und Organoisothiocyanaten sowie Quaternisierung mit Alkylhalogeniden und Oxidation mit Schwefel / Transition Metal Substituted Phosphanes, Arsanes and Stibanes, LX [1]. Ferrio-(thiocarbamoyl)phosphanes Cp(OC)2Fe-P(Mes)[C(=S)-N(R)H] (R= Me, Et, r-Bu): Build-up from the Ferrio-mesitylphosphane Cp(OC)2Fe-P(Mes)H and Organoisothiocyanates, Quatemization with Alkyl Halides and Oxidation with Sulfur
Authors: Malisch Wolfgang , Thirase Katharina , Reising Joachim 
Published: February 2015

Abstract
Arsane und Stibane, LX [1]. Ferrio-(thiocarbamoyl)phosphane Cp(OC)2Fe-P(Mes)[C(=S)-N(R)H] (R = Me, Et, f-Bu): Aufbau aus dem Ferrio-mesitylphosphan Cp(OC)2Fe-P(Mes)H und Organoisothiocyanaten sowie Quaternisierung mit Alkylhalogeniden und Oxidation mit Schwefel Transition Metal Substituted Phosphanes, Arsanes and Stibanes, LX [1]. Ferrio-(thiocarbamoyl)phosphanes Cp(OC)2Fe-P(Mes)[C(=S)-N(R)H] (R= Me, Et, r-Bu): Build-up from the Ferrio-mesitylphosphane Cp(OC)2Fe-P(Mes)H and Organoisothiocyanates, Quatemization with Alkyl Halides and Oxidation with Sulfur The ferrio-phosphane Cp(OC)2Fe-P(Mes)H (4), obtained by deprotonation of the me-sitylphosphane iron complex {Cp(OC)2 [H2(Mes)P]Fe}BF4 (3), reacts with the organoiso­ thiocyanates RNCS (R = Me, Et, Ph) (5a -c) to give the functionalized ferrio-phosphanes Cp(OC)2Fe-P(Mes)[C(=S)-N(R)H] (6a-c). Quatemization of 6a,b at the phosphorus atom with the alkyl halides R′-Hal (R1 = Me, Et, CH2 Ph) (7a-c) yields the complexes {Cp(OC)2Fe-P(Mes)(R′)[C(=S)-N(H)(R)]}Hal (8a-d), whereas oxidation with elemental sulfur affords the ferrio-thiophosphoranes Cp(OC)2Fe-P(=S)(Mes)[C(=S)-N(R)H] (R = Me, Et) (10a,b). 10b is alkylated with Mel to give {Cp(OC)2Fe-P(SMe)(Mes)[C(=S)-N(Et)H]}I (11). The structure of 8b has been determined by X-ray analysis.
Magnesium Bis[D(-)-Mandelate] Dihydrate and Other Alkaline Earth, Alkali, and Zinc Salts of Mandelic Acid
Authors: Schmidt Michael , Schier Annette , Schmidbaur Hubert 
Published: February 2015

Abstract
, and zinc D(-)mandelates have been prepared from the parent mandelic acid and equivalent quantities (1:1 / 2:1) of the corresponding metal hydroxides in water. Colourless polycrystalline products are obtained from the aqueous solutions by evaporation of the solvent. The alkali, ammonium and strontium salts are anhydrous, the calcium and barium salts are monohydrates, the magne­ sium salt is a dihydrate, and the zinc salt a trihydrate. The crystal and molecular structure of the magnesium salt has been determined by single crystal X-ray diffraction methods (mono­ clinic, space group P21, Z = 2). The lattice contains isolated complexes with hexacoordinate magnesium atoms chelated by two mandelate anions through one of their carboxylate oxygen atoms and the alcoholic hydroxyl group. Two water molecules in cis position are completing the octahedral coordination sphere. [Mg(C8H7O3)2(H2O)2] is thus a true mononuclear magnesium complex. Its stability and non-hygroscopic properties suggest its use as a magnesium and/or mandelate drug.
The Basicity of Silylamines and Alkylamines: An Equilibrium Study of the Competitive Borane Adduct Formation
Authors: Huber Gerald , Schmidbaur Hubert 
Published: February 2015

Abstract
In order to investigate the Lewis acid/base chemistry of silylamines in solution, the equilibrium reactions of Me3SiNMe2 / Me3SiNMe2(BH3) and different amines NR3 / amineboranes NR3(BH3) were monitored by 1H NMR spectroscopy in C6D6 and CDCI3 at 60 °C. For the equilibrium of the reference silylamine/-borane and Me3CNMe2 / Me3CNMe2(BH3) values K = 0.35 (AG = 3.1 kJ mol-1) in C6D6 and K = 0.50 (AG = 2.0 kJ mol-1) in CDCl3 have been estimated, showing that both the silylamine and the C/Si-analogous organic amine have very similar donor properties. Small amines like NMe3 proved to be much more powerful donors than the silylamine Me3SiNMe2, whereas bulky amines are less efficient donors, indicating that steric effects play an important role. The formation of BH3 adducts of Me2NSiH3 and (H3Si)3N which could not be followed experimentally owing to the low stability of the products, has been studied by quantum chemical calculations. A comparison with data for Me3N(BH3) shows that the silylamines are poorer donors, but the reason for this remains unclear
Kristallchemische Beziehungen von CO6O2 [TeO4 (CoAsO5)2] zur Steinsalzstruktur von CoO mit einem Beitrag über magnetische Messungen an CO6O2[TeO4(CoAsO5)2] / Crystal Chemical Relations of Co6O2[TeO4(CoAsO5)2] to the Rocksalt Structure of CoO and a Contribution on Magnetic Measurements of Co6O2[TeO4(CoAsO5)2]
Authors: Staack M. , Miiller-Buschbaum Hk. 
Published: February 2015

Abstract
The recently investigated compound Co6O2[TeO4(CoAsO5)2 marks the first occurrence of a tellurate-arsenate additionally revealing the hitherto unknown pyro-cobaltoarsenate group CoAsO7. One oxygen is exclusively connected to octahedrally coordinated cobalt. It is shown that the structure of Co6O2[TeO4(CoAsO5)2] can be derived step by step from the rock salt structure of CoO. Magnetic measurements using the Faraday technique reveal Curie-Weiss behaviour between 88 and 325 K. Low temperature measurements by a SQUID magnetometer show antiferromagnetism and a relatively low NEEL temperature of 5 K compared to other Co(II) compounds.
Untersuchungen an Polyhalogeniden, XXXVII [1]. Heptaiodide(3-) von Amminkomplexen des Chroms und Cobalts: Hexamminchrom(III)heptaiodid [Cr(NH3)6](I3)(I4) und die Tri-μ-hydroxo-bis[metall(III)-triammin]heptaiodide [(NH3)3 M(OH)3M(NH3)3](I3)2I mit M = Co, Cr / Studies o f Polyhalides, XXXVII [1]. Heptaiodides(3-) of Ammine Complexes of Chromium and Cobalt: Hexamminechromium(III) heptaiodide [Cr(NH3)6](I3)(I4) and the Tri-μ-hydroxo-bis[metal(III)-triammine] heptaiodides [(NH3)3M(OH)3M(NH3)3](I3)2I with M = Co, Cr
Authors: Tebbe Karl-Friedrich , Gilles Theo 
Published: February 2015

Abstract
The new compounds [Cr(NH3)6](I3)(I4) and [(NH3)3M(OH)3M(NH3)3](I3)2I with M = Cr, Co have been prepared by the reaction of [M(NH3)6]X3 (M = Cr, Co; X = Cl, I, NO3), KI, and I2 in water under controlled stoichiometric and pH conditions. The first compound is isotypic with the cobalt compound of the same composition. It crystallizes in the monoclinic space group I2/m with a = 984.7(3), b = 786.6(1), c = 1330.1(3) pm, β = 95.34(2)° and Z = 2 and contains nearly octahedral cations [Cr(NH3)6]3+, a linear triiodide ion I3
- and a tetraiodide ion I42-. The two other compounds are isotypic. They crystallize in the orthorhombic space group Pnma with a = 2629.6( 14) / 2633.5(2), b = 798.3(11) / 797.3(1), c = 1127.6(7) / 1125.7( 1) pm and Z = 4 for Co / Cr respectively. The heptaiodide(3-) ion is broken into two triiodide ions and one iodide ion
Thermische Zersetzung und Lösungskalorimetrie von Ammoniumeuropiumchloriden / Thermal Decomposition and Solution Calorimetry of Ammonium Europium Chlorides
Authors: Hennig C. , Oppermann H. , Blonska A. 
Published: February 2015

Abstract
The thermal decomposition equilibria of ammonium europium chlorides (NH4)3EuCl6, (NH4)2EuCl5 and NH4Eu2Cl7 have been investigated by total pressure measurements in a membrane zero manometer. The thermodynamic data of these solid phases have been derived from the decomposition functions. The standard enthalpies of solution in 4n HCl (aq.) of (NH4)3EuCl6, (NH4)2EuCl5, NH4Eu2Cl7, EuCl3 and Eu2O3 were measured. On the basis of these values and tabulated data, the standard enthalpies at 298 K of the ammonium europium chlorides were derived and compared with the obtained results from the total pressure measurements.
Photochemical Reductive Elimination of Nitrogen from Triazidogallium(III). Generation of Luminescent Gallium(I)
Authors: Kunkely Horst , Vogler Arnd 
Published: February 2015

Abstract
The irradiation of Ga(N3)3 in CH3CN leads to a reductive elimination of nitrogen according to the equation GaIII(N3)3 → GaIN3 + 3N2 (φ = 0.002 at λirr = 254 nm). Ga+ in CH3CN is characterized by its absorption (λmax = 298 nm) and emission (λmax = 475 nm) spectrum
Preparation and Crystal Structure of Cs4Nb2S11
Authors: Klepp Kurt O. , Gabi Gerald 
Published: February 2015

Abstract
The new polychalcogenide Cs4Nb2S11 was prepared from the melt. Cs4Nb7S11 is orthorhombic, oP68, s.g. Pca21 (No.29), Z = 4 with a = 13.775(9) Å, b = 8.043(9) A , c = 18.306(5) Å. The crystal structure was determined from diffractometer data and refined to a conventional R of 0.052 (1104 Fo’s, 154 variables). It is characterized by asymmetric discrete binuclear moieties [Nb2S11]4- which are separated by the alkali cations. Each Nb atom is side-on coordinated by two S2
2- groups, one bridging and one terminal sulfide ligand. Nb-S bond lengths are 2.15(1) Å to 2.22(1) Å (terminal) and 2.44(1 )Å to 2.51(1) Å (others). A further longer Nb-S bond (2.86(1)A and 2.90(1)A, resp.) expands the coordination of the two crystallographically independent transition metal atoms to distorted pentagonal bipyramidal configurations. The Nb-Nb-distance is 3.517(3) Å. The anionic groups are arranged in hexagonal close packed slabs running parallel to (001). The atomic arrangement corresponds to that of K4Ta2S11
Wechselwirkungen in Molekülkristallen, 149 [1 -3]. Wirt/Gast-Einschlußverbindungen von NjN'-Ditosyl-p-phenylendiamin: Die Wasserstoffbrücken-Addukte mit Morpholin; Pyridin, N,N-Dimethylformamid und Dimethylsulfoxid / Interactions in Molecular Crystals, 149 [1 - 3]. Host/Guest-Inclusion Compounds of N,N'-Ditosyl-/?-phenylenediamine: The Hydrogen Bonded Adducts with Morpholine, Pyridine, N ,N -Dimethylform amide, and Dimethylsulfoxide
Authors: Bock Hans , Nagel Norbert , Näther Christian 
Published: February 2015

Abstract
Basic principles of hyrogen-bonding are reviewed including cooperative effects and within the novel class of inclusion compounds formed by N,N′-ditosyl-p-phenylenediamine as a capable host, four aggregates with the hydrogen donor or acceptor guest molecules morpholine, pyridine, N,N-dimethylformamide and dimethylsulfoxide are reported. Morpholine introduces three additional hydrogen bonds N-H···N, N-H···O as well as C-H···O and pyridine, DMF and DMSO each one of type N-H···N, N-H··O(=C) and N-H···O(=S ). Crystallization and structures determined are discussed in detail with special emphasis on the varying sulfonamide conformation as well as on cavity or channel inclusion of the guest molecules. In conclusion, the crystal growth conditions and the structures of the altogether 13 N,N′-ditosyl-p-phenylenediamine inclusion compounds investigated are reviewed and possible reasons for their formation are discussed.
Indium partiell in tetraedrischer Sauerstoffkoordination in BaIn2Zn3O7. Eine Betrachtung zum Ba2Ln2Zn8O13/BaLnAlZn3O7 -Typ / Partial Tetrahedral Oxygen Coordination of Indium in BaIn2Zn3O7. A Consideration of the Ba2Ln2Zn8O13/BaLnAlZn3O7 Type
Authors: Sfreddo O. , Müller-Buschbaum Hk. 
Published: February 2015

Abstract
Single crystals of BaIn2Zn3O7 have been prepared by solid state reaction and crystallization from flux. X-ray investigations led to hexagonal symmetry, space group C4
6v-P63mc, lattice constants a = 6.342(1), c = 10.282(1) Å, Z = 2. BaIn2Zn3O7 shows tetrahedral positions statistically occupied by In3+ and Zn2+. The crystal structure is isotypic to Ba2Ln2Zn8O13 and BaLnAlZn3O7. A discussion of the related compounds is given.
Zur Kenntnis eines Vanadyl-Oxocuprat-Phosphats CaCu(VO)(PO4)2 mit Cu2+ auf Positionen der VO2+-Ionen und einer kupferreicheren Phase CaCu1,13(VO)0,87(PO4)2 / On an Vanadyl Oxocuprate Phosphate CaCu(VO)(PO4)2 Containing Cu2+ at Positions of VO2+ Ions and a Copper Rich Phase CaCu1.13(VO)0.87(PO4)2
Authors: Meyer S. , Müller-Buschbaum Hk. 
Published: February 2015

Abstract
Single crystals of CaCu(VO)(PO4)2 (I) and CaCu1.13(VO)0.87(PO4)2 (II) have been prepared using solid state reactions in closed and evacuated quartz tubes. X-ray characterization led to orthorhombic symmetry, space group D16
2h-Pnma, lattice constants a, b, c (I): 9.708( 1), 9.603( 1), 6.913(1) Å and (II); 9.700(1), 9.614(1), 6.896(1) Å, Z = 4. Strongly deformed CaO8 cubes are connected by planar CuO4 polygons or square VO1+4 pyramids. Short V-O distances are features of VO2+ groups. Two point positions are occupied in a disordered manner by Cu2+ and VO2+. The replacement of Cu2+ by VO2+ at one position depends on the ratio VO2+ : Cu2+ at the neighbouring position, since otherwise there would be collisions of the apical oxygen atoms of neighbouring VO1+4 pyramids.
Verknüpfung von (TeO6)6- und (TeO6)3(NiO6)3-Sechsringen durch TeNiO9-Oktaederdoppel in Pb3Ni4,5Te2,5O15 / Connection of (TeO6)6 and (TeO6)3(NiO6)3 Hexagons by TeNiO9 Octahedra Double in Pb3Ni4,5Te2,5O15
Authors: Wedel B. , Sugiyama K. , Müller-Buschbaum Hk. 
Published: February 2015

Abstract
Single crystals of Pb3Ni4.5Te2.5O15 have been prepared by heating pellets of mixtures of PbO, TeO2 and nickel hydroxide carbonate to 730 °C in air. X-ray investigations led to hexagonal symmetry, space group d6
6-P6322, lattice constants a = 10.2589(1), c = 13.554(5), Z = 4. Typical features of the crystal structure are face sharing TeNiO9 octahedra doubles and planes of connected (TeO6)6 and (TeO6)3(NiO6)3 hexagons. The one-sided coordination of lead by oxygen is complemented by the lone pair of electrons. The lone pair positions are estimated by calculations of the Coulomb terms of lattice energy.