bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reaction of Sulphate Radical Anion (SO4•-) with Cyanuric Acid: A Potential Reaction for Its Degradation?
Authors: Manoj P , Varghese R , Manoj V M , Aravindakumar C T 
Published: September 2002

Abstract
A novel reaction between sulfate radical anion (SO4•-) and cyanuric acid (CA), a non-degradable end product of the oxidative degradation of the triazine based herbicide, atrazine, is presented using laser flash photolysis and steady state radiolysis techniques at pH 5. A second order rate constant of 1.9×107 dm3 mol-1 s-1 has been determined and the transient intermediate (λmax=330 nm) is assigned to a radical cation of CA (CA•+). The degradation profile indicated that about 76% of CA have been decomposed after an absorbed γ-radiation dose of 18 kGy. It is therefore proposed that the reaction of SO4•- could be utilised for the degradation of CA in aqueous medium which is normally stable to any Advanced Oxidation Processes.
Zirconium Complexes Having Phenoxy/Cycloalkylimine Chelate Ligands for the Polymerization of Ethylene for Vinyl-Terminated Low Molecular Weight Polyethylenes
Authors: Ishii Sei-ichi , Mitani Makoto , Saito Junji , Matsuura Sadahiko , Kojoh Shin-ichi , Kashiwa Norio , Fujita Terunori 
Published: September 2002

Abstract
Zirconium complexes bearing phenoxy/cyclopropyl-, cyclobutyl- or cyclopentyl-imine chelate ligands, when activated with methylalumoxane (MAO), produced vinyl-terminated low molecular weight polyethylenes (Mw&lt;5000) with higher activities than Cp2ZrCl2 at 25 °C. The complex having a cyclobutyl group provided the lowest molecular weight polyethylene (Mw 2100).
Enhanced Emission in Composite Multilayers of Amorphous TiO2-Gel and Eu3+ Ions
Authors: Sun Junqi , Ichinose Izumi , Takaki Rie , Nakao Aiko , Kunitake Toyoki 
Published: September 2002

Abstract
Ultrathin films of (TiO2/Eu3+)n and (TiO2/PAA/Eu3+)n composites were prepared by the surface sol-gel process and the subsequent chemisorption/coordination of Eu3+ ions. Amorphous TiO2-gel layers were found to act as sensitizer for efficient emission of Eu3+.
Selective Dimerization of Ethene over Lanthanide Catalysts Deposited from Eu or Yb Metal Solutions in Liquid Ammonia
Authors: Imamura Hayao , Kuhara Takumi , Furutachi Masataka , Sakamoto Takahiko , Sakata Yoshihisa 
Published: September 2002

Abstract
Europium and ytterbium catalysts obtained by impregnation of active carbon with lanthanide metal (Eu and Yb) solutions in liquid ammonia were found to be active for the dimerization of ethene. Ethene was selectively dimerized at 423–473 K to yield butene isomers with selectivity of 10–62%. The active catalysts were characterized as lanthanide nitride formed by the thermal decomposition of its amide.
Catalytic and Chemoselective Glycosylation between “Armed” and “Disarmed” Glycosyl p-Trifluoromethylbenzylthio-p-trifluoromethylphenyl Formimidates
Authors: Chiba Hiroyuki , Funasaka Setsuo , Kiyota Koichi , Mukaiyama Teruaki 
Published: September 2002

Abstract
Catalytic and chemoselective glycosylation between novel “armed” and “disarmed” glycosyl p-trifluoromethylbenzylthio-p-trifluoromethylphenyl formimidates was effectively performed in the presence of a catalytic amount of TfOH and MS 4A in CH2Cl2 at -78 °C. In addition, it was noted that highly 1,2-cis or 1,2-trans stereoselective synthesis was established when the above glycosylation was carried out at -78 °C in tBuOMe or EtCN, respectively.
Synthesis of Functionalized Cyclobutene Derivatives via Selective SN2’ Reaction of Dichlorocyclobutenes
Authors: Hamura Toshiyuki , Kakinuma Michiko , Tsuji Shinsuke , Matsumoto Takashi , Suzuki Keisuke 
Published: September 2002

Abstract
Dichlorocyclobutenone acetals, available via the cycloaddition of dichloroketene and alkynes followed by acetalization, undergo selective SN2’ attack by various nucleophiles to give a variety of functionalized cyclobutene derivatives in high yields.
Single Step Synthesis of Cyclooctadienone Derivatives by Reaction of Cyclobutenones with Dienyllithium
Authors: Hamura Toshiyuki , Tsuji Shinsuke , Matsumoto Takashi , Suzuki Keisuke 
Published: September 2002

Abstract
Various functionalized cyclooctadienones are accessible in high yields by the reaction of cyclobutenones with dienyllithium.
Steam Reforming of CH4 over Ni/Mg-Al Catalyst prepared by spc-Method from Hydrotalcite
Authors: Shishido Tetsuya , Wang Peng , Kosaka Tokuhisa , Takehira Katsuomi 
Published: September 2002

Abstract
The catalytic activity and stability for steam reforming of CH4 was studied on Ni/Mg-Al prepared by the solid phase crystallization (spc-) method. spc-Ni/Mg-Al showed higher activity than those prepared by the conventional impregnation method such as Ni/MgO or Ni/Al2O3. This catalyst also showed high stability even under a low steam to carbon ratio. The high and stable activity of spc-Ni/Mg-Al is caused by the formation of highly dispersed and stable Ni metals.
New Types of Oscillations in the BrO3--Serine-Mn2+-H2SO4 System
Authors: Li Hexing , Xu Yeping , Wang Minghui 
Published: September 2002

Abstract
A novel kind of oscillations was observed in the Ser-BrO3--Mn2+-H2SO4 system. Unlike other BZ oscillations, this kind of oscillations might be considered as radical-controlled rather than bromide-controlled because no substance subjected to bromination was present. The addition of acetone induced the dual-frequency oscillations, in which the radical-controlled oscillations appeared first following the bromide-controlled oscillations.
Sonogashira Coupling with Aqueous Ammonia
Authors: Mori Atsunori , Ahmed Mohamed S Mohamed , Sekiguchi Akitoshi , Masui Kentaro , Koike Tooru 
Published: September 2002

Abstract
The coupling reaction of terminal alkynes with organic halides, Sonogashira-(Hagihara) coupling, takes place with only 2 equivalents of dilute aqueous ammonia as an additive. The reaction of phenylacetylene and 4-iodoanisole in the presence of 1 mol% of PdCl2(PPh3)2, 2 mol% of CuI, and 2 equiv of aqueous ammonia in THF proceeds at room temperature for 6 h to afford the coupling product in a quantitative yield.
A One-Pot, Two-Step Enzymatic Synthesis of L-Lactic Acid from Acetaldehyde
Authors: Miyazaki Masaya , Ogino Kazuya , Shibue Mitsukuni , Nakamura Hiroyuki , Maeda Hideaki 
Published: September 2002

Abstract
A one-pot, two-step enzymatic synthesis of L-lactic acid from acetaldehyde and carbon dioxide has developed. The reaction was performed using a combination of reverse reaction of pyruvate decarboxylase and hydrogenation of pyruvate by lactic dehydrogenase. The maximum yield was obtained at pH 9.5.
Effect of Oxidation Treatment on Surface Fractal Dimension of Activated Carbon Fiber
Authors: Huang Zheng-Hong , Kang Feiyu , Yang Jun-Bing , Liang Kai-Ming , Zhao Hui , Dong Bao-Zhong 
Published: September 2002

Abstract
Viscose rayon based activated carbon fibers (ACFs) were oxidized in different ways, resulting in changes of surface fractal dimension, which might be found in ACFs with low and high specific surface areas treated under the same condition.
Effects of 1-Butanol on Emission Spectrum of 4-Phenyl-1-N,N-dimethylaminobutane in THF: Separation into Polar and Hydrogen-Bonding Interactions
Authors: Yamamoto Shunzo , Guobin Xie , Nakamura Mayuko , Sueishi Yoshimi 
Published: September 2002

Abstract
The effects of the addition of 1-butanol (BuOH), trichloroacetic acid (TCAA) and acetonitrile (AN) on the emission spectrum of 4-phenyl-1-N,N-dimethylaminobutane in THF have been studied. The results show that AN has only a polar effect and TCAA only a hydrogen-bonding (or protonation) effect, while BuOH has both effects. The relative magnitude of each effect was evaluated as a function of vol% of BuOH.
Kinetics of Base Catalyzed Chemiluminescence Reaction of Spiro[adamantane -1,3′-(4′-(m-hydroxyphenyl)-4′-methoxy-1′,2′-dioxetane)]
Authors: Wakasugi Takeshi , Fujimori Ken , Matsumoto Masakatsu 
Published: September 2002

Abstract
Our study of the kinetics of deprotonation and decomposition of spiro[adamantane-1,3′-(4′-(m-hydroxy-phenyl)-4′-methoxy-1′,2′-dioxetane)] (I) showed kinetic parameters for decomposition of tetrabutylammmonium salt of I to be ΔH‡=85.4±1.1 kJ mol-1; ΔS‡=16.0±3.5 J mol-1 K-1.
Electro-organic Synthesis of N-Hexyl Carbamate by Carbonylation of Methanol and Hexylamine with CO over Au Supported on Carbon Anode
Authors: Leon Roberto G de , Yamanaka Ichiro , Otsuka Kiyoshi 
Published: September 2002

Abstract
It has been found that Au anode, [AuBr3/AC+VGCF], showed the electro-catalysis for carbonylation of methanol, hexylamine and CO to 6-amino-hexyl-carbamic acid methyl ester (N-hexyl carbamate) using LiBr electrolyte.
Efficient Carbonylation of Methanol Catalyzed by Rhodium(I) Cyclooctadiene Complexes with Triphenylphosphinechalcogenide Ligands
Authors: Das Pankaj , Chutia Pratap , Dutta Dipak Kumar 
Published: September 2002

Abstract
Rhodium(I) complexes of the type, [Rh(COD)ClL] (COD=1,5-cyclooctadiene and L=Ph3PO, Ph3PS and Ph3PSe) have been synthesized. The complexes show higher efficiency as catalyst for carbonylation of methanol to acetic acid and methyl acetate at 130 °C and 15 bar pressure than the industrially used species [Rh(CO)2I2]-.
A Novel Polyoxygenated Spirostanol Trisdesmoside from the Rhizomes of Helleborus orientalis
Authors: Watanabe Kazuki , Mimaki Yoshihiro , Sakuma Chiseko , Sashida Yutaka 
Published: September 2002

Abstract
A novel polyoxygenated spirostanol glycoside (1) was isolated from the rhizomes of Helleborus orientalis and its structure was determined by spectroscopic analysis, including extensive 1D and 2D NMR data, and the results of acid hydrolysis. The new glycoside (1) is unique in structure having oxygen atoms at C-1, C-3, C-21, C-23, and C-24 of the spirostanol skeleton and bearing a new acetylated tetraglycoside, a diglycoside, and a monosaccharide at C-1, C-21, and C-24 of the aglycon, respectively.
Preparation of Soluble π-Conjugated Poly(5,6-dialkoxy-1,10-phenanthroline-3,8-diyl)s. Their Stacking Behavior and Function as a π-Conjugated Polymer Ligand
Authors: Yamamoto Takakazu , Anzai Kazushige , Fukumoto Hiroki 
Published: September 2002

Abstract
Soluble π-conjugated poly(dialkoxyphenanthroline)s were prepared by organometallic polycondensation using a Ni(0) complex. Stacking structure, optical and electrochemical properties, and Ru complex forming reactivity of the polymer have been revealed.
Fluorometric Detection of p-Chlorophenol by ZnTPP-Intercalated Dialkyl Ammonium Smectite
Authors: Nagase Takako , Takahasi Yukiko , Suzuki Toshishige M , Ebina Takeo , Wakui Yoshito , Onodera Yoshio 
Published: September 2002

Abstract
Zn(II) tetraphenylporphyrin (ZnTPP)-intercalated dialkyl ammonium smectite was applied to the condensation and detection of chlorophenols in aqueous medium. ZnTPP and p-chlorophenol found to form a stable porphyrin-quinone dyad in micelles of dialkyl ammonium ion, accompanied with color-change and fluorescence quenching of ZnTPP. As a result, sub-ppm to ppm order of p-chlorophenol in water can be detected by the fluorescence quenching.
Hexagonal Corrosion Pattern upon Cleavage of a Zinc Single Crystal under a Vertical High Magnetic Field
Authors: Shinohara Kenji , Hashimoto Kazuhito , Aogaki Ryoichi 
Published: September 2002

Abstract
A two-dimensional hexagonal pattern was observed upon cleavage of a zinc single crystal after attack with sulfuric acid under a vertical high magnetic field. This phenomenon results from the formation of microscopic magnetohydrodynamic flow (micro-MHD flow) as microscopic vortexes, which interact with fluctuations of the reaction activity. The spatial pattern of the zinc surface is thought to be a result of the growth of fluctuation in the reaction activity about the zinc anodic dissolution, which was stabilized by the micro-MHD vortexes.
Synthesis and Properties of a Photoresponsive Azobenzene-Containing Hyperbranched Polymer
Authors: Wang Guojie , Cheng Hao , Wang Xiaogong 
Published: September 2002

Abstract
A hyperbranched polymer containing azobenzene chromophores has been synthesized and characterized. The photoresponsive properties of the hyperbranched azo polymer have been studied and compared with those of the monomers.
Nucleophilic Borylation of Benzyl Halides with Bis(pinacolato)diboron Catalyzed by Palladium(0) Complexes
Authors: Ishiyama Tatsuo , Oohashi Zengo , Ahiko Taka-aki , Miyaura Norio 
Published: September 2002

Abstract
Nucleophilic borylation of benzyl halides with bis(pinacolato)diboron in the presence of KOAc in toluene was effectively catalyzed by a palladium complex generated in situ from Pd(dba)2 and (4-MeOC6H4)3P, giving the corresponding pinacol benzylboronates in high yields.
Stereocontrolled OH Protection: Asymmetric Tetrahydrofuranylation
Authors: Nagano Hiroyuki , Katsuki Tsutomu 
Published: September 2002

Abstract
(ON+)(Salen)ruthenium(II) complex 1 was found to be an effective catalyst for asymmetric tetrahydrofuranylation of alcohols. The tetrahydrofuranylation of optically active alcohols was also successfully performed in a highly diastereoselective manner by taking advantage of double diastereodifferentiation.
Synthesis of Dihydropyrrole Derivatives by Copper-Catalyzed Cyclization of γ,δ-Unsaturated Ketone O-Methoxycarbonyloximes
Authors: Koganemaru Yohei , Kitamura Mitsuru , Narasaka Koichi 
Published: September 2002

Abstract
2-Bromomethyl-3,4-dihydro-2H-pyrroles are prepared from γ,δ-unsaturated ketone O-methoxycarbonyloximes by treatment with a catalytic amount of CuBr•SMe2 and LiBr.
The Interaction of Aldolase with the Cytoplasmic Domain of Human Erythrocyte Band 3 Inhibited by Lanthanum Ions
Authors: Zheng Yujuan 
Published: September 2002

Abstract
The effect of lanthanum ions on the activity of the cytoplasmic domain of human erythrocyte band 3 (CDB3), which was measured according to the inhibition to aldolase, was studied. In the presence of low concentration of lanthanum ions, the function of CDB3 to inhibit aldolase activity decreased significantly. It indicated that lanthanum ions in the erythrocyte would change the conformation of CDB3 and influence the control on aldolase activity.
Anomalous Laser Photophoretic Behavior of Photo-Absorbing Organic Droplets in Water
Authors: Monjushiro Hideaki , Takeuchi Kaori , Watarai Hitoshi 
Published: September 2002

Abstract
Laser photophoretic behavior of 2-benzylpyridine droplets including molybdenum blue as a photo-absorber was examined in water by irradiating with a cw Nd:YAG laser (1064 nm). The photophoretic velocity of the droplet decreased with increasing its absorptivity. The droplets smaller than 1.5 μm in radius with high absorptivity migrated in the opposite direction against the laser irradiation. This is the first observation of the negative photophoresis in liquid media.
Reaction of Yb-Imine Complexes with Isocyanates. Novel Synthesis of α-Aminoacetamides
Authors: Ueno Ryoma , Yano Kohei , Makioka Yoshikazu , Fujiwara Yuzo , Kitamura Tsugio 
Published: September 2002

Abstract
Yb(II)-imine complexes, prepared from Yb metal and aromatic imines in THF and HMPA, reacted with isocyanates to give α-aminoacetamides. This method provides a novel synthetic route to α-amino-substituted acetamide derivatives.
Rate Constant for the Reaction of OH Radicals with Isoprene at 298±2 K
Authors: Iida Yumi , Obi Kinichi , Imamura Takashi 
Published: September 2002

Abstract
Using the relative-rate technique, the rate constant for the reaction of OH radicals with isoprene was determined in one atmosphere of air at 298±2 K. Methyl nitrite photolysis in air was used as a source of OH radicals. Ozone and O-atom reactions with isoprene were confirmed to have a negligible contribution on the loss of isoprene. The rate constant relative to three reference compounds yielded (10.4±0.4)×10−11 cm3 molecule−1 s−1 (the uncertainty is 2σ).
Synthesis of Poly(aryl ether) by Pd-Catalyzed Polycondensation
Authors: Shibasaki Yuji , Ueda Mitsuru 
Published: September 2002

Abstract
High molecular weight poly(aryl ether)s were successfully prepared by the Pd-catalyzed polycondensation of 2,2-bis(4-hydroxy-3-methylphenyl)propane (I) with 4,4′–dibromobiphenyl (II). The polycondensation proceeded in toluene in the presence of 4 mol% Pd(OAc)2, 6 mol% 2-(di-tert-butylphosphino)biphenyl, and 6 equiv K3PO4 at 90 °C for 24 h, giving the polymer with a number-average molecular weight (Mn) of 18000. The resulting polymers were fully characterized by IR and NMR spectroscopies.
Nucleophilic O-Transfer, Cyclizaton, and Decarboxylation of Carbonyl Oxide Intermediate in the Reaction of Stable Imidazolylidene and Singlet Oxygen
Authors: Ishiguro Katsuya , Hirabayashi Kenji , Nojima Takayuki , Sawaki Yasuhiko 
Published: September 2002

Abstract
The 1O2 oxidation of 1,3-dialkylimidazol-2-ylidene (alkyl=tert-butyl) resulted in the formation of a carbonyl oxide intermediate which was shown to react as a nucleophilic O-transer and to cyclize to an unstable dioxirane intermediate leading to, as final products, bis-imine RN=CH–CH=NR and carbene-CO2 adduct.
Absorption and Desorption Behavior of Ammonia with Alkali Earth Halide and Mixed Halide
Authors: Liu Chun Yi , Aika Ken-ichi 
Published: September 2002

Abstract
Alkali earth metal halides were studied for the use as ammonia storage material operated below 60 kPa. Reversible and irreversible absorption were observed for each samples. MgCl2, CaCl2, and CaBr2 were found to be adequate for TSA method (between 298 and 473 K), and these storage capacities were much higher than that of Na–Y zeolite. CaCl2–CaBr2 mixed halides proved to be a useful material with large absorption for PSA cycling between 10 and 60 kPa of ammonia.
Efficient Chiral Amidophosphine Ligand for Copper-catalyzed Asymmetric Addition of Diethylzinc to N-Sulfonylimines
Authors: Nagai Kazushige , Fujihara Hidetaka , Kuriyama Masami , Yamada Ken-ichi , Tomioka Kiyoshi 
Published: September 2002

Abstract
Structure study of a chiral amidophosphine ligand for copper-catalyzed asymmetric addition reaction of diethylzinc with the N-tosylimine reached to the new chiral phosphine bearing the bulky substituent on the pyrrolidine ring, which significantly improved catalytic performance to give the adduct in 96% yield and 93% ee after 3 h.
Surface pKa of Amine-Terminated Self-assembled Monolayers Evaluated by Direct Observation of Counter Anion by FT-Surface Enhanced Raman Spectroscopy
Authors: Nishiyama Katsuhiko , Kubo Atsushi , Ueda Akihiro , Taniguchi Isao 
Published: September 2002

Abstract
The acid–base reaction of aminoethanethiol (2AT) and 6-amino-1-hexanethiol (6AT) self-assembled monolayers (SAMs) on a gold electrode was monitored by Fourier-transform surface enhanced Raman spectroscopy (FT-SERS). A band attributed to counter anions, such as ClO4- or NO3- for NH3+, was clearly observed during protonation of the amino group of 2AT or 6AT. The band intensity decreased with increasing solution pH. The surface pKa’s of the 2AT and 6AT SAMs on a gold electrode at 0 V vs Ag|AgCl (saturated KCl) were 5.0±0.2 and 3.8±0.3, as evaluated from the intensity–pH curve.
A Novel Noninterpenetrated Open Framework Structure with Extraordinarily Large Cavity Sizes: A New Coordination Polymer Containing a Rigid and Bent Molecular Building Block
Authors: Shin Dong Mok , Lee In Su , Chung Young Keun 
Published: September 2002

Abstract
A new coordination polymer is prepared from Co(SCN)2 and 1,3-bis(trans-4-styrylpyridiyl)benzene and characterized by X-ray diffraction studies, which shows a noninterpenetrated framework structure containing extraordinarily large cavities and channels.
Photochemical Generation of Chlorine-substituted Digermenes and Their Rearrangement to Germylgermylenes
Authors: Fukaya Norihisa , Sekiyama Hiroshi , Ichinohe Masaaki , Sekiguchi Akira 
Published: September 2002

Abstract
Photolysis of cis,trans-1,2,3-trichloro-1,2,3-tris(tri-tert-butylsilyl)cyclotrigermane and trans-1,2-dichloro-3-methyl-1,2,3-tris(tri-tert-butylsilyl)cyclotrigermane in the presence of triethylsilane yielded products arising from a germylgermylene, which is formed by the 1,2-chlorine migration on digermenes.
A Novel Layered Zirconium Phosphate [NH4]2[Zr(OH)3(PO4)] Synthesized through Non-aqueous Route
Authors: Wang Dan , Yu Ranbo , Kumada Nobuhiro , Kinomura Nobukazu , Yanagisawa Kazumichi , Matsumura Yasuyuki , Yashima Tatsuaki 
Published: September 2002

Abstract
A novel layered zirconium phosphate [NH4]2[Zr(OH)3(PO4)] has been synthesized by using nonaqueous method in an ethylene glycol medium. The as-synthesized product was further characterized by means of single-crystal and powder X-ray diffractions, TG-DTA, CHN elemental analysis, and IR. The compound consists of macroanionic layers of [ZrPO7H3]2− separated by NH4+ cations.
Preparation and Separation Performance of a TPAOH-Induced ANA Zeolite Membrane
Authors: Liu B S , Au C T 
Published: September 2002

Abstract
An ANA-type zeolite membrane with good H2/C3H8 permselectivity has been prepared on an γ-Al2O3/α-Al2O3 support by in situ hydrothermal synthesis under the induction of tetrapropylammonium hydroxide (TPAOH).
Photochemistry of Pyracyloquinone Studied by Laser Flash Photolysis with UV/VIS and IR Detection
Authors: Oishi Shigero , Urabe Tomoko , Kotake Rika 
Published: September 2002

Abstract
Direct evidence for the existence of an intermediate bisketene (Φ=0.14, ε575=2300 M−1 cm−1), generated from pyracyloquinone, was obtained by laser flash photolysis with UV/VIS and IR detection. The bisketene was found to react with DMSO to give acenaphthylene-5,6-dicarboxylic anhydride and dimethyl sulfide, quantitatively.
A High-Yielding and Convenient Synthesis of Rotaxane Based On an Ester Forming Capping Methodology
Authors: Tokunaga Yuji , Kakuchi Suzuka , Akasaka Koichiro , Nishikawa Naoki , Shimomura Youji , Isa Kimio , Seo Toshihiro 
Published: September 2002

Abstract
An efficient method for preparation of rotaxanes, involving hydrogen bonding guided self-assembly and diaryldiazoalkanes ester forming end-capping of pseudorotaxanes, is described. The end-capping reactions proceed under mild conditions and furnish the expected rotaxanes in excellent yields.
Adsorption of Phenols onto 1,1′-Dimethyl-4,4′-bipyridinium-smectites
Authors: Okada Tomohiko , Ogawa Makoto 
Published: September 2002

Abstract
Adsorption of phenols (phenol and 2-naphthol) onto the 1,1′-dimethyl-4,4′-bipyridinium (methylviologen:MV2+)-smectite intercalation compounds, which were synthesized by ion exchange reactions, led to the change in the color and the basal spacing. The color change was ascribed to the formation of charge-transfer complex of MV2+ and phenols. The increase in the basal spacing by the reaction with phenols indicates a change in the interlayer microstructure.
Highly Effective Removal of Arsenate and Arsenite Ion through Anion Exchange on Zirconium Sulfate-Surfactant Micelle Mesostructure
Authors: Iwamoto Masakazu , Kitagawa Hirokazu , Watanabe Yoshimasa 
Published: September 2002

Abstract
The zirconium sulfate-surfactant micelle mesostructure (ZS) works as an excellent anion exchanger to remove arsenic ion in an aqueous solution. The amounts of As trapped in ZS reached to 1.8 mol/mol-Zr.
Fixation of Carbon Dioxide into Polysilsesquioxane Containing Glycidyl Groups
Authors: Yamamoto Shin-ichi , Hayashi Toshiyuki , Kawabata Katsuyuki , Moriya Osamu , Endo Takeshi 
Published: September 2002

Abstract
Fixation of carbon dioxide into the polysilsesquioxane containing glycidyl groups proceeded in the presence of a catalytic amount of tetrabutylammonium salts under atmospheric pressure, in which the solid phase reaction was notably effective for the transformation of oxirane groups into cyclic carbonate groups on the polysilsesquioxane.
Reactions of 2-Germanaphthalene with Elemental Sulfur and Selenium: Synthesis of Novel Cyclic Polychalcogenides Containing a Germanium, Trichalcogenagermolanes
Authors: Nakata Norio , Takeda Nobuhiro , Tokitoh Norihiro 
Published: September 2002

Abstract
Novel five-membered cyclic trichalcogenides containing a germanium atom were synthesized by the reactions of a kinetically stabilized 2-germanaphthalene with elemental sulfur and selenium, and the molecular structure of the triselenide was determined by X-ray crystallographic analysis.