bluuebunny/crossref_metadata_2025_split huggingface dataset:
Extraction Behavior of Gallium(III) with 2-Methyl-5-hexyloxymethyl-8-quinolinol and 5-Hexyloxymethyl-8-quinolinol from Weakly Acidic Solution into Supercritical CO2 and Selective Separation of Gallium(III) from Aluminum(III)
Authors: Ohashi Kousaburo , Tatenuma Katuyoshi 
Published: May 2005

Abstract
The extraction behavior of gallium(III) with 2-methyl-5-hexyloxymethyl-8-quinolinol (HMO6Q) and 5-hexyloxymethyl-8-quinolinol (HO6Q) (Figure 1) into supercritical CO2 from weakly acidic solution was investigated. The extractability of gallium(III) is appreciably dependent on the temperature and pressure of supercritical CO2. Gallium(III) was separated fairly selectively from aluminum(III) with HMO6Q into supercritical CO2.
Stereocontrolled Synthesis of the BC Ring System of Taxol
Authors: Shiina Isamu , Iwadare Hayato , Sakoh Hiroki , Tani Yu-ichirou , Hasegawa Masatoshi , Saitoh Katsuyuki , Mukaiyama Teruaki 
Published: May 2005

Abstract
Optically active 2α,10β-dibenzyloxy-11β-(t-butyldimethylsiloxy)-7β-hydroxy-1α-(4-methoxybenzyloxy)–8β,15,15-trimethyl-4-methylene-trans-bicyclo[6.4.0]dodecan-9-one 2 that corresponds to BC ring system of Taxol was prepared from 8-membered ring enone 3 in high yield via stereoselctive Michael addition and successive intramolecular aldol cyclization. The above 8-membered ring enone 3 was synthesized from the linear optically active polyoxy-compound 4 by SmI2-mediated intramolecular aldol cyclization.
Imaging Antibody Molecules at Room Temperature by Contact Mode Atomic Force Microscope
Authors: Harada Akira , Yamaguchi Hiroyasu , Kamachi Mikiharu 
Published: May 2005

Abstract
Monoclonal antibodies (IgG and IgM) have been observed by atomic force microscopy (AFM) at room temperature depositing from solution onto a freshly cleaved highly oriented pyrolitic graphite (HOPG) surface.
Cooperation of Hydrogen Bonds for Mesophase Stabilization in Supramolecular Assemblies
Authors: Kato Takashi , Kondo Gohta , Kihara Hideyuki 
Published: May 2005

Abstract
The supramolecular complexes of 2,6-bis(acylamino)pyridines and mesoganic compounds containing carboxylterminated alkyl chains exhibit thermally stable mesomorphic behavior due to the cooperation of two different types of hydrogen bonds.
Controlled Assembly of Patterned Gold Thin Films Using Photolithographed Self-assembled Monolayers as Templates
Authors: Liu Junfu , Zhang Lingang , Mao Pansong , Chen Deying , Gu Ning , Ren Jiyun , Wu Yanpeng , Lu Zuhong 
Published: May 2005

Abstract
Patterned colloidal Au films were assembled from aqueous solution onto photolithographed self-assembled monolayers of (3-mercaptopropyl) trimethoxysilane films on silica. The colloidal Au closely replicated the mask patterns. The self-assembly were through Au-S covalent bounding. The present approach may be applicable to assembly of microelectronic circuits and microbiosensors.
Regioselective Ring-opening of Cyclopropyl Ketones with Organometallic Reagents
Authors: Ichiyanagi Tsuyoshi , Kuniyama Satoru , Shimizu Makoto , Fujisawa Tamotsu 
Published: May 2005

Abstract
Regioselective ring-opening reaction of cyclopropyl ketones was conducted successfully, in which the reaction of cyclopropyl phenyl ketone with trimethylaluminum catalyzed by nickel acetylacetonate gave the ring-opening product in up to 76% yield.
Synthesis of Optically Active Diols Bearing a Long Chain via Enzymatic Hydrolysis of Cyclic Carbonates
Authors: Matsumoto Kazutsugu , Shimojo Megumi , Hatanaka Minoru 
Published: May 2005

Abstract
PPL catalyzes the hydrolysis of racemic five-membered cyclic carbonates bearing a long chain with high enantioselectivity. Optically pure (S)-(+)-8-hydroxyhexadecanoic acid is effectively synthesized starting from (R)-4-(7-benzyloxy)heptyl-1,3-dioxolan-2-one and (S)-9-benzyloxynonane-1,2-diol, which are prepared via an enzymatic reaction.
Asymmetric Energy Exchange Observed in Two-beam Coupling Experiment on Immobilized Films of Bilayer Amphiphiles Possessing Carbazole and Nonlinear Optical Chromophores
Authors: Sasaki Takeo , Yoshimi Takeshi , Saga Miki , Ishikawa Yuichi 
Published: May 2005

Abstract
Amphiphilic compounds containing carbazole and a nonlinear optical (NLO) chromophore were synthesized and a two-beam coupling experiment was performed on a mutilayered film of a mixture of these amphiphiles. Asymmetric energy exchange was observed in a mutilayered film while no exchange was observed in an amorphous one.
Condensation of Cys(Acm)-Containing Peptide Segments with Silver Chloride as an Activator of Peptide Thioesters
Authors: Kawakami Toru , Aimoto Saburo 
Published: May 2005

Abstract
The undesirable removal of an acetamidomethyl (Acm) group in a Cys(Acm) residue is suppressed during the segment condensation of peptides, when silver chloride is used as an activator of the thioester moiety in a partially protected peptide thioester. The rate of segment condensation is sufficiently hifgh enough for its application to practical peptide synthesis.
Novel σ-π Alternating Polymers Having 2,2′-Bipyridyl in the Polymer Backbone and Their Ruthenium Complexes
Authors: Tokura Satoshi , Yashuda Takashi , Segawa Yusaburo , Kira Mitsuo 
Published: May 2005

Abstract
Novel σ-π alternating copolymers, poly(disilanylene-2-2′-bipyridine-5-5′-diyl) and poly(silylene-2-2′-bipyridine-5-5′-diyl) and their ruthenium complexes, were synthesized. The ruthenium complexes showed photoconductivity caused by metal-to-ligand charge-transfer excitation.
Photocoloration of Spironaphthoxazine Microcrystalline Powder by Femtosecond Laser Pulse Excitation
Authors: Asahi Tsuyoshi , Masuhara Hiroshi 
Published: May 2005

Abstract
Photocoloration of microcrystalline powder of a spirooxazine compound by femtosecond laser pulse excitation, depending on its intensity, is reported with transient absorption spectral measurements of the powder. The mechanism is discussed in terms of light induced local heating and succeeding cooling of a small volume in the microcrystal.
Pulse Radiolysis-Laser Flash Photolysis Study of Xanthene in 1,2-Dichloroethane/Carbon Tetrachloride
Authors: Sumiyoshi Takashi , Wu Feng , Shindo Toshihiko , Ueta Syohei , Sawamura Sadashi 
Published: May 2005

Abstract
The photochemistry of 9-xanthenyl radicals produced by pulse radiolysis of xanthene in 1,2-dichloroethane (1,2-DCE) and CCl4 was studied by means of successive laser flash photolysis. Photobleaching due to chlorine atom transfer from solvents to the excited 9-xanthenyl radical was observed with quantum yields of 0.04 and 0.29 in 1,2-DCE and CCl4, respectively.
Synthesis and Structure of [Cp*3(Ph2C2S2)Fe4S5(BF4)·Me2CO: Implication of the Flexible Fe4S5 Framework
Authors: Inomata Shinji , Hitomi Keiichi , Ogino hiroshi 
Published: May 2005

Abstract
A mixed ligand cluster, [Cp*3(Ph2C2S2)Fe4S5](BF4)·Me2CO, was synthesized and its X-ray crystal structure was determined. From the comparison of this structure with those of Cp*3(Ph2C2S2)Fe4S5·THF, [Cp*3(Ph2C2S2)Fe4S5](PF6)·2Me2CO, and [Cp*3(Ph2C2S2)Fe4S5](PF6)2·Me2CO which have been reported previously, it is concluded that the Fe4S5 core of the clusters is flexible and easily undergoes deformation.
Crystal Size Dependence of Emission from Perylene Microcrystals
Authors: Kasai Hitoshi , Kamatani Hirokazu , Yoshikawa Yuko , Okada Shuji , Oikawa Hidetoshi , Watanabe Akira , Itoh Osamu , Nakanishi Hachiro 
Published: May 2005

Abstract
In this study, we found that, in perylene microcrystals, luminescence peak position from free-exciton state was gradually shifted to high energy side with reducing the crystal size, even if the microcrystals were fabricated by different kinds of preparation techniques. The life time of luminescence from self-trapped exciton state became shorter when the crystal size reduced. The main reason was estimated to be based on the change of lattice state.
Preparation of Poly(imino-1,3-phenylene) and Its Related Polymer by Palladium-catalyzed Polycondensation
Authors: Kanbara Taraki , Izumi Kiyoaki , Nakadani Yoshiko , Narise Tomoko , Hasegawa Kiyoshi 
Published: May 2005

Abstract
Palladium-catalyzed polycondensation reactions of 1,3-dibromobenzene with 1,3-phenylenediamine and 3-bromoaniline afforded soluble poly(imino-1,3-phenylene) in mederate to good yields. Poly(imino-2,6-pyridinediylimino-1,3-phenylene) was also prapared in an analogous way.
Living Coordination Polymerization of Alkylallenes by π-Allylnickel Catalyst: Observation of an Extremely High Polymerizability of 1,2-Cyclononadiene
Authors: Takagi Koji , Tomita Ikuyoshi , Endo Takeshi 
Published: May 2005

Abstract
The coordination polymerization of cyclic allenes by [(π-allyl)NiOCOCF3]2 was investigated to produce polymers with narrow molecular weight distributions in high yields. The polymerization proceeded in a living mechanism, and the molecular weight of the resulting polymer had a linear relationship with the monomer feed ratio. Especially, the polymerization of 1,2-cyclononadiene (i.e., a monomer with substantial ring strain) proceeded dramatically fast compared with acyclic monomers.
Tetranuclear Cobalt(III) Complex Having the Cubane Co4O4 Core: Synthesis and Structural Analysis of the Complex Containing (2-Pyridylmethyl)glycine
Authors: Ama Tomoharu , Okamoto Ken-ichi , Yonemura Toshiaki , Kawaguchi Hiroshi , Takeuchi Akiyoshi , Yasui Takaji 
Published: May 2005

Abstract
A tetranuclear cobalt(III) complex with the cubane Co4O4 core, [Co4(pg)4(μ3-O)4] (Hpg: N-(2-pyridylmethyl)glycine), was prepared and the structure was determined by the X-ray diffraction method. This complex has the four N–H···O intramolecular hydrogen-bonds between the amino group on one of the four cobalt atoms and the carboxyl group on another cobalt atom. Its neutral aqueous solution showed no spectral change for at least 3 days.
Synthesis of the C8-C15 Segment of (+)-Discodermolide
Authors: Miyazawa Masahiro , Oonuma Satoshi , Maruyama Kimiyuki , Miyashita Masaaki 
Published: May 2005

Abstract
Succeeding to the preceding paper, stereoselective synthesis of the C8-C15 segment of (+)-discodermolide (1), the marine natural product having the potent immunosuppressive activity, is described in which the contiguous asymmetric centers at C11 and C12 positions were stereospecifically constructed via the methylation of an epoxy alcohol with lithium dimethylcuprate.
A Novel Tetrathiafulvalenoquinodimethane Derivative Exhibiting Strong Electronic Absorption in a Near-Infrared Region
Authors: Ueda Kazumasa , Iwamatsu Masaki , Sugimoto Toyonari , Fujita Hideo 
Published: May 2005

Abstract
A novel donor (dihydrotetrathiafulvalene)/acceptor (ethanediylidene-2,2′-bis(indane-1,3-dione) compound was synthesized, which very interestingly exhibited its longest wavelength absorption till a near-infrared region (&gt; 800 nm) without significant absorptions in the visible region.
The Effects of Imidazolato-bridge and Zinc on a Model Complex for the Active Site of Cu-Zn SOD
Authors: Kawabata Satoshi , Soma Tatunori , Ichikawa Kazuhiko 
Published: May 2005

Abstract
The SOD-like activity of model dicopper complexes was described. The role of imidazolato-bridged zinc was revealed by biochemical and electrochemical methods.
Efficient Perparation of Racemic Isomers of ansa-Zirconocene Complexes with a Vinyl Substituted Silylene Bridge
Authors: Huhn Thomas , Suzuki Noriyuki , Yamaguchi Yoshitaka , Mise Takaya , Chihara Teiji , Wakatsuki Yasuo 
Published: May 2005

Abstract
The reaction of dilithiated silylene-bridged Cp-ligands, whose silylene had one or two vinyl substituents, with ZrCl4 gave racemo-rich mixtures of the complex RR′Si(C5H2-2,4-Me2)2ZrCl2 (1: R = vinyl, R′ = Me, rac/meso = 77/23, 4: R = R′ = vinyl, rac/meso = 77/23). The pure racemic complex 1-rac was isolated after several recrystallization processes in a satisfactory yield (31%, rac/meso &gt;99⁄1) and was structurally characterized. Polymerization of propylene with 1-racMAO gave highly isotactic polypropylene.
Synthesis of the Central Heterocyclic Skeleton of an Antibiotic, A10255
Authors: Umemura Kazuyuki , Ikeda Shin , Yoshimura Juji , Okumura Kazuo , Saito Hiroyuki , Shin Chung-gi 
Published: May 2005

Abstract
The central heterocylic skeleton (13) of an antibiotic, A10255, was synthesized by stepwise introduction of two groups into the 2,6-positions of 3-{(4-ethoxycarbonyl)-2-thiazolyl} pyridine, via 17 steps in 4.8% total yield.
Laser Flash Photolysis Study on Photochemical and Photophysical Properties of C60 Fine Particle
Authors: Fujitsuka Mamoru , Kasai Hitoshi , Masuhara Akito , Okada Shuji , Oikawa Hidetoshi , Nakanishi Hachiro , Watanabe Akira , Ito Osamu 
Published: May 2005

Abstract
Photophysical and photochemical properties of C60 fine particle which was prepared by the reprecipitation method were examined by nanosecond laser flash photolysis. Triplet-triplet annihilation due to migration of triplet state within the fine particle was observed. Photoexcitation of the fine particle under the presence of electron donor resulted in photoinduced electron transfer. The reaction rate was one order smaller than that in solution suggesting interfacial electron transfer.
Cleavage of C–H Bond of Methane on Intermediate Q of Methane Monooxygenase
Authors: Yoshizawa Kazunari , Ohta Takehiro , Shiota Yoshihito , Yamabe Tokio 
Published: May 2005

Abstract
A possible reaction pathway for the C–H bond cleavage of methane on intermediate Q of methane monooxygenase is studied theoretically. We propose that the activation of methane C–H bond by Q, suggested to involve a high valent Fe2(μ-O)2 diamond core, should occur through the formation on the Q(CH4) complex with an Fe–C bond and Fe–H bonds, followed by a concerted H atom abstraction via a four-centered transition state.
Synthesis of New Adsorbent Copper(II) Terephthalate
Authors: Mori Wasuke , Inoue Fumie , Yoshida Keiko , Nakayama Hirokazu , Takamizawa Satoshi , Kishita Michihiko 
Published: May 2005

Abstract
Copper(II) terephthalate absorbs a large amount of gases such as N2, Ar, O2, and Xe. The maximum amounts of absorption of gases were 1.8, 1.9, 2.2, and 0.9 mole per one mole of the copper(II) salt for N2, Ar, O2, and Xe, respectively, indicating that the gases were not adsorbed on the surface but occluded within the solid. The porous structure of copper(II) terephthalate, in which the gas is occluded, is deduced from the temperature dependence of magnetic susceptibilities and the linear structure of terephthalate.
Conversion of Cephem into Penam/Penem through Sequential Ring-opening/Recyclization in an Al/BiCl3/AlCl3 System
Authors: Tanaka Hideo , Tokumaru Yoshihisa , Kameyama Yutaka , Torii Sigeru 
Published: May 2005

Abstract
A sequential reductive ring-opening/recyclization reaction of 3-substituted Δ3-cephems into 2-exo-methylenepenams and/or 2-methylpenems was successfully performed by treatment with Al/BiCl3/AlCl3 in NMP (N-methyl-2-pyrrolidinone). When the reaction was carried out in methanol, 3-norcephalosporin was formed as a major product.
A Kinetic Investigation for Substrate Specificity of a Hydrolytic Abzyme
Authors: Wada Yumiko , Yamamoto Masayoshi , Itoh Isamu , Ono Mitsunori 
Published: May 2005

Abstract
Catalytic antibody 4A1 showed a significant rate acceleration against substrates which are different from the structure of the inducing hapten in the carrier-proximal region. Kinetic analysis of Km and kcat values as well as the KD values of the corresponding transition-state analogues indicated that the rate enhancement resulted from stabilization of the transition-state in the cleavage reaction.
Cu(I)/Pd(0)-Catalyzed Cross-Coupling Reaction of Alkynylsilanes with Aryl or Alkenyl Triflates: “Sila”-Sonogashira-Hagihara Coupling
Authors: Nishihara Yasushi , Ikegashira Kazutaka , Mori Atsunori , Hiyama Tamejiro 
Published: May 2005

Abstract
Alkynylsilanes reacted with aryl or alkenyl triflates in the presence of 5 mol% of Pd(PPh3)4 and 10 mol% of CuCl in DMF to give the corresponding cross-coupling, namely “sila”-Sonogashira-Hagihara coupling, products in good to excellent yields. The present reaction is highly effective for one-pot synthesis of unsymmetrical diarylacetylenes.
New Types of Coupling Reactions of Some Nitriles on Ruthenium Complexes
Authors: Hiraki Katsuma , Kinoshita Yuji , Ushiroda Hiroyo , Koyama Shuji , Kawano Hiroyuki 
Published: May 2005

Abstract
A hydridoruthenium(II) complex [RuClH(CO)(PPh3)3] reacts with o-toluonitrile and water at 120 °C to give a novel five-membered cyclometallated complex, [Ru(C6H3MECH=NCH2C6H4Me-o)Cl(CO)(PPh3)2]. The hydrido complex reacts with benzoylacetonitrile at 80 °C to form a six-membered chelate complex, [RuCl{O=C(Ph)C(CN)=C(CH2COPh)NH}(CO)(PPh3)2].
Preparation of Hyperbranched Polymethacrylates by Self-Condensing Group Transfer Polymerization
Authors: Sakamoto Kenkichi , Aimiya Takuji , Kira Mitsuo 
Published: May 2005

Abstract
Hyperbranched polymethacrylates were synthesized by group transfer self-condensation polymerization of 2-(2-methyl-1-triethylsiloxy-1-propenyloxy)ethyl methacrylate. The hyper-branched structure of the polymer was characterized by 13C NMR spectroscopy. The extent of the branching depended on the nucleophilic catalysts used for activation of the monomer.
Remarkable Enhancement of Lipase Catalytic Activity: Combined Effects of Acyl Donor and Thiacrown Ether Additive during Trans-esterification of 5-Phenyl-1-penten-3-ol
Authors: Takagi Yumiko , Ino Rieko , Kihara Hiroshi , Itoh Toshiyuki , Tsukube Hiroshi 
Published: May 2005

Abstract
The Pseudomonas cepacia lipase-catalyzed trans-esterification of 5-phenyl-1-penten-3-ol was drastically accelerated by 5 mol% of a thiacrown ether additive. The reaction profile was strongly dependent on the nature of the vinyl esters as the acyl donor; the highest acceleration rate was recorded with vinyl chloroacetate, while the highest enantioselectivity was obtained using vinyl acetate.
Photoinduced Formation of [fac-Re(bpy)(CO)3CN] from [fac-Re(bpy)(CO)3(4-CNpy)]+ (bpy = 2,2′-bipyridine, py = pyridine): CN Group Rearrangement of a Cyanopyridine Ligand onto Central Metal
Authors: Hori Hisao , Ishihara Jun , Koike Kazuhide , Takeuchi Koji , Ibusuki Takashi , Ishitani Osamu 
Published: May 2005

Abstract
[fac-Re(bpy)(CO)3CN] was photochemically formed from [fac-Re(bpy)(CO)3(4-CNpy)]+ with a 53% yield using 365 nm irradiation in the presence of triethanolamine (TEOA). This rearrangement proceeds via formation of solvent complexes [fac-Re(bpy)(CO)3(DMF)]+ and [fac-Re(bpy)(CO)3(TEOA)]+.
Investigation on the Conformational Behavior of Kemp’s Triacid and Its Isomer Using Tb3+ as a Fluorescent Probe
Authors: Luján-Upton Hannia A , Okamoto Yoshiyuki 
Published: May 2005

Abstract
Complexes of terbium ion, Tb3+, and two cyclic acids, Kemp’s triacid and its configurational isomer, ((1α,3α,5β)-1,3,5-trimethyl-1,3,5-cyclohexanetricarboxylic acid) were made. Differences in complexation were investigated by fluorescence intensity and lifetime measurements. Intensity measurements showed the Kemp’s / Tb3+ complex to be five times more fluorescent than the isomeric complex. Lifetime measurements supported the intensity data showing an average of 2.7 water molecules bound to Tb3+ in the Kemp’s / Tb3+ complex. Four waters were retained in the isomeric complex.
Synthesis and Properties of Di-μ-superoxo Dinuclear Cobalt(II, III) Complex
Authors: Hayashi Yoshihito , Obata Masahiro , Suzuki Masatatsu , Uehara Akira 
Published: May 2005

Abstract
A novel di-μ-superoxo mixed-valence dicobalt(II, III) complex, [(Me3tacn)2CoIICoIII(μ-OH)(μ-O2)2]2+ has been prepared from a μ-peroxo complex, [(Me3tacn)2(acac)2CoIII2(μ-O2)]2+.Electrochemical studies demonstrated the reversible redox behavior among the oxidation states of Co(III, III), Co(III, II), and Co(II, II).
A Novel Bimacrocyclic Ni(II) Complex Comprised of Both Trans-I and Trans-III Configurations
Authors: Mochizuki Katsura 
Published: May 2005

Abstract
A new configurational isomer of the Ni(II) complex with a C–C bridged bimacrocycle, where one 14-membered N4 macrocycle adopts a trans-I (RSRS) configuration and the other a trans-III (RRSS) configuration, was isolated and its structure was confirmed by X-ray structural analysis.
Inclusion Compounds of Hyodeoxycholic Acid and the Crystal Structure of a 1:1 Complex between the Acid and Pyridine
Authors: Miyake Yasuhito , Matsuura Yoshiaki , Sada Kazuki , Miyata Mikiji 
Published: May 2005

Abstract
Hyodeoxycholic acid forms inclusion crystals with aromatic amines such as pyridine, aniline and toluidines. The crystal structure of a 1:1 inclusion compound of hyodeoxycholic acid with pyridine was determined.
New Methoxy-Substituted Tritylamine Linkers for the Solid Phase Synthesis of Protected Peptide Amides
Authors: Meisenbach Mark , Voelter Wolfgang 
Published: May 2005

Abstract
Syntheses of new methoxy-substituted tritylamine linkers in only four steps for the solid phase synthesis of peptide amides via the Fmoc/tBu strategy are described and their properties compared. Peptide amides can be cleaved under mild acidic conditions in high purity in their protected of deprotected form.
A New Ruthenium-catalyzed Reaction with Propargyl Alcohol: Cyclopropanation of Norbornene
Authors: Kikuchi Hidetoshi , Uno Mitsunari , Takahashi Shigetoshi 
Published: May 2005

Abstract
Cationic (η5-cyclopentadienyl)tris(acetonitrile)ruthenium complexes catalyze a new reaction of propargyl alcohol with norbornene in methanol to give a cyclopropanation product, acetyltricyclooctane, in a quantitative yield.
A New Ni(dmise)2 Complex N,N-dimethylpiperidinium[Ni(dmise)2]2, with Stable Metallic State
Authors: Sato Akane , Kobayashi Hayao , Kobayashi Akiko 
Published: May 2005

Abstract
A new Ni(dmise)2 conductor, N,N-dimethylpiperidinium[Ni(dmise)2]2 (dmise = 2-selenoxo-1,3-dithiole-4,5-dithiolate) is metallic down to 2 K. In contrast to the normal metallic nature of this complex, the magnetic susceptibility was unexpectedly large and temperature dependent (χRT = 8.4 × 10−4 emu mol−1). Ni(dmise)2 molecules are arranged in the so-called “spanning overlap mode”.
Migration of Copper Ions in Cu-MFI without Destruction of Zeolite Lattice of Dealumination upon Hydrothermal Treatment at 923 K
Authors: Iwamoto Masakazu , Wang Jie , Sperati Karla M , Sajiki Toshiya , Misono Makoto 
Published: May 2005

Abstract
The hydrothermal treatment of Cu-MFI at 923 K resulted in great change in the IR and ESR spectra, whereas yielded a little change in the XRD, surface area, and 27Al MASNMR measurements. It has been suggested that Cu ions migrated to 5-membered oxygen ring sites due to the thermal treatment, which causes the deactivation of the catalyst.
Highly Selective Reduction of NO in Excess Oxygen through the Intermediate Addition of Reductant (IAR) between Pt- and Zn-MFI Zeolites
Authors: Iwamoto Masakazu , Zengyo Tetsu 
Published: May 2005

Abstract
Ethene has been added as reductant of NO in excess oxygen between an oxidation (Pt-MFI) and a reduction catalysts (Zn-MFI). The efficiency of ethene, namely the ratio of the amount of NO reduced to that of ethene consumed, reached about 2 and was much higher than that of conventional reduction on Cu-MFI.
Carbon Monoxide Oxidation Characteristics Over the Al2O3-supported CeO2-ZrO2 Catalysts Prepared by the Microemulsion Method
Authors: Masui Toshiyuki , Fujiwara Kazuyasu , Peng Yumin , Machida Ken-ichi , Adachi Gin-ya 
Published: May 2005

Abstract
Ceria-zirconia ultrafine particles supported on Al2O3 powders by the microemulsion method, CeO2-ZrO2/Al2O3, provided the high CO oxidation activity than that of the same catalyst prepared by the conventional co-precipitation method.
Conversion of the Valence States of 57Fe Atoms Produced in 57Co-labelled [Co(pyridine)2Ni(CN)4]
Authors: Sato Takuma , Ambe Fumitoshi , Kitazawa Takafumi , Sano Hirotoshi , Takeda Masuo 
Published: May 2005

Abstract
Emission Mössbauer spectra of the title compound measured below 80 K consist of three components ascribed to two Fe(II) high-spin states and one Fe(III) low-spin state. It was concluded that a part of the Fe(II) high-spin species converts to an Fe(III) high-spin species above 210 K, based on the comparison of the results with temperature-depending spin-crossover transition of the isomorphous compound, [Fe(py)2Ni(CN)4].