bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Thiourea-Functionalized Benzo-15-crown-5 for Cooperative Binding of Sodium Ions and Anions
Authors: Nishizawa Seiichi , Shigemori Kazuki , Teramae Norio 
Published: November 2003

Abstract
A new bifunctional receptor 1 for cooperative complexation of cations and anions is synthesized on the basis of benzo-15-crown-5, functionalized with a thiourea moiety as anion binding sites. When Na+ is bound to the crown moiety of 1, the association constants of I−, Br− and NO3− in CD3CN are significantly increased, as compared with free 1. Thermodynamic studies indicate that these large increases in complex stabilities can be ascribed primarily to the enthalpic effect.
A Novel Adduct of TCNQ Dianion with Schiff-Base Cobalt(III) Complex in N-Bonded Coordination Mode in Dmf Solution [TCNQ = 7,7,8,8-Tetracyanoquinodimethane]
Authors: Ohashi Yukako , Oogo Yoshiki , Nakamura Mikio 
Published: November 2003

Abstract
Formation of a stable novel adduct, [Co(III)(saloph)]2 TCNQ(-II), has been confirmed by analysis of the 1H NMR spectra of the N,N-dimethylformamide(dmf)-acetonitrile solution of LiTCNQ and [N,N′-o-phenylenebis(salicylideneaminato)] cobalt(II), denoted as [Co(II)(saloph)]. The time-resolved spectra of the UV-vis absorption of the LiTCNQ-[Co(II)(saloph)] solutions gave information concerning the formation process of the adduct.
Biosynthesis of Poly(3-hydroxyalkanoate)s with Terminal Alkene Groups in the Side Chains by Chromobacterium sp.
Authors: Kimura Hiroshi , Sasaki Shintaro , Inukai Shinobu , Takeishi Makoto 
Published: November 2003

Abstract
Chromobacterium sp. isolated from a river soil produced the poly(3-hydroxyalkanoate)s [P(3HA)s] with unsaturated groups at the terminal positions of the β-substituents when 10-undecenoic acid (UDEA) was fed as the carbon sources.
New Cyclohexeno-fused Tetrachalcogenofulvalenes and an Electron Correlated TCNQ Salt
Authors: Sakurai Naoki , Mori Hatsumi , Tanaka Shoji , Moriyama Hiroshi 
Published: November 2003

Abstract
New cyclohexeno-fused donors, CHET-TTF 1, CHESe-TTF 2, CHST 3 and CHEO-TTF 4, have been synthesized and the prepared 1·TCNQ is electron correlated system with two-dimensional electronic structure by a tight-binding band calculation, where magnetic susceptibility is retained in Curie-like behavior down to 2 K.
A Mandala-Patterned Bandanna-Shaped Porphyrin Oligomer, C1244H1350N84Ni20O88, Having a Unique Size and Geometry
Authors: Sugiura Ken-ichi , Tanaka Hiroyuki , Matsumoto Takuya , Kawai Tomoji , Sakata Yoshiteru 
Published: November 2003

Abstract
A porphyrin henicosamer was designed, synthesized, and structurally characterized using scanning tunnelling microscopy.
Surface Plasmon Resonance Detector for Capillary Chip Electrophoresis
Authors: Waseda Satoru , Shimosaka Takuya , Uchiyama Katsumi , Hobo Toshiyuki 
Published: November 2003

Abstract
A novel universal detection system for capillary chip electrophoresis utilizing surface plasmon resonance (SPR) detection was developed. Nafion tube was used as a septum to draw electric current outside the flow without generating any bubble in the capillary channel. Polydimethyl siloxane as a capillary chip could easily attained this setup. We could successfully observe small change in refractive index by SPR under elctroosmotic flow.
Overall Water Splitting into H2 and O2 under UV Irradiation on NiO-loaded ZnNb2O6 Photocatalysts Consisting of d10 and d0 Ions
Authors: Kudo Akihiko , Nakagawa Seira , Kato Hideki 
Published: November 2003

Abstract
NiO-loaded ZnNb2O6 photocatalysts showed an activity for decomposition of pure water into H2 and O2 under band gap irradiation (hν &gt; 4.0 eV). This oxide photocatalyst is a new type of a photocatalyst material from the view point of the component because it consists of d10 and d0 metal ions.
2,3-Dichloro-5,6-dicyano-p-benzoquinone (DDQ) as a Highly Efficient and Mild Catalyst for Diethyl Acetalization of Carbonyl Compounds
Authors: Karimi Babak , Ashtiani Ashraf Miri 
Published: November 2003

Abstract
Various types of structurally different carbonyl compounds in the presence of ethyl orthoformate (EtO)3CH could be efficiently converted to their diethyl acetals by using a catalytic amount (1-3 mol%) of DDQ under mild reaction conditions.
Electrochemistry of Hypericin Incorporated into a Cationic Lipid Film on a Graphite Electrode in an Aqueous Medium
Authors: Sagara Takamasa , Kaba Narimasa , Nakashima Naotoshi 
Published: November 2003

Abstract
Quasi-reversible two-consecutive one-electron reduction processes of hypericin (Hyp) in an aqueous medium were achieved by incorporating Hyp into a cast film of a synthetic cationic lipid, dioctadecyldimethylammonium bromide (2C18N+Br−), coated on a basal-plane pyrolytic graphite (BPG) electrode. Importance of the electrostatic interaction between Hyp anions and the cationic sites in the matrix was suggested.
Asymmetric Borane Reduction of Prochiral Ketones Using Aluminum Triethoxide and Chiral Amino Alcohols
Authors: Yanagi Takashi , Kikuchi Ken , Takeuchi Hideki , Ishikawa Takehiro , Nishimura Toshihiro , Kamijo Tetsuhide 
Published: November 2003

Abstract
The asymmetric borane reduction of prochiral ketones with catalysts prepared in situ from aluminum triethoxide and chiral amino alcohols was examined, and the corresponding chiral alcohols were obtained in high optical purity.
Fibrous Self-Organization of an Azopyridine Carboxylic Acid through Head-to-Tail Hydrogen Bonds
Authors: Aoki Ken-ichi , Nakagawa Masaru , Ichimura Kunihiro 
Published: November 2003

Abstract
Fibrous materials were formed from an alkaline solution of an azopyridine carboxylic acid as a result of the intermolecular head-to-tail hydrogen bonding and of the suppressive effect of an alkyl side chain on the π-π stacking of the molecules.
Photocatalytic Decomposition of Pure Water into H2 and O2 over SrTa2O6 Prepared by a Flux Method
Authors: Kato Hideki , Kudo Akihiko 
Published: November 2003

Abstract
Orthorhombic (orth.) SrTa2O6 powder which was hardly obtained by a solid state reaction was easily synthesized by using a strontium borate flux. The native SrTa2O6 powder showed photoluminescence and a photocatalytic activity for decomposition of pure water into H2 and O2. The photocatalytic activity was drastically increased by loading a NiO co-catalyst even without pretreatment. The optimum amount of NiO loaded was 0.10 wt%. The quantum yield of the NiO(0.10 wt%)/SrTa2O6 photocatalyst was 7% at least.
Preparation of Monolayers of Ion-Paired Macrocyclic Amphiphiles to Estimate a Critical Free Space Required for Azobenzene Photoisomerization
Authors: Nakagawa Masaru , Watase Reiko , Ichimura Kunihiro 
Published: November 2003

Abstract
A novel family of ion-paired macrocyclic amphiphiles consisting of a tetracationic cyclophane and long-chain sulfonates was developed to form stable monolayers incorporating azobenzene moieties with tailor-made photoisomerizability.
Nanosecond and Picosecond Optical Limiting Properties of a Square-planar Complex C30H24N6O4S4Cu, CuL2 [HL = p-nitrobenzaldehyde S-benzyl dithiocarbazate]
Authors: Zhu Xuhui , Chen Xiaofeng , Zhang Yong , You Xiaozeng , Tan Weilian , Ji Wei 
Published: November 2003

Abstract
Optical limiting properties of a square-planar complex C30H24N6O4S4Cu, CuL2 [HL = p-nitrobenzaldehyde S-benzyl dithiocarbazate] were investigated with laser pulses of 7-ns and 35-ps duration. The measured nanosecond and picosecond limiting thresholds for CuL2 are ca. 1 and 1.4 J cm−2 at 532 nm, respectively. The nanosecond limiting threshold is comparable to that of C60.
Electrochemical Detection of Serotonin Using Conductive Diamond Electrodes
Authors: Sarada Bulusu V , Rao Tata N , Tryk Donald A , Fujishima Akira 
Published: November 2003

Abstract
The electrochemical detection of serotonin with highly boron-doped diamond thin film electrodes was investigated by use of flow injection analysis (FIA) with amperometric detection. The voltammetric behavior of diamond indicated low background current and a low tendency to adsorb the oxidative products on the electrode surface, in comparison to the glassy carbon electrode. An experimental amperometric detection limit of 10 nM (0.2 pmol) was obtained for the FIA technique, demonstrating that diamond is a stable and sensitive electrode for serotonin determination.
Catalytic Decomposition of CFC-12 over WO3/TiO2
Authors: Ma Zhen , Hua Weiming , Tang Yi , Gao Zi 
Published: November 2003

Abstract
CFC-12 was decomposed completely on WO3/TiO2 in the presence of water vapor at 265 °C, and the selectivity to CO2 was above 99.8%. The catalytic activity and selectivity remained steady during 120 h on stream. WO3-modified Al2O3, SnO2 and Fe2O3 showed less activity than WO3/TiO2 for the decomposition of CFC-12, but they were more active than the corresponding metal oxides, too.
Thermoelectric Properties of Alternatively Layered Films of Polyaniline and (±)-10-Camphorsulfonic Acid-Doped Polyaniline
Authors: Yan Hu , Toshima Naoki 
Published: November 2003

Abstract
Thermoelectric performance of polyaniline can be improved by formation of multilayered film structure. The alternatively layered films are composed of electrically insulating emeraldine base layers and electrically conducting (±)-10-camphorsulfonic acid (CSA)-doped emeraldine salt layers. The multilayered film exhibited 3.5 times higher thermoelectric power factor at ca. 300 K than a bulk film of polyaniline doped by CSA.
Synthesis and Characterization of a Novel Palladium(II) Complex Polymer Having Network Structure with Guest Water Molecules
Authors: Cao Rong , Su Weiping , Hong Maochun , Tatsumi Kazuyuki 
Published: November 2003

Abstract
The polymeric palladium complex of [Pd3K6(i-mnt)3(H2O)2]n (i-mnt = [(S2C=C(CN)2]2−) has been prepared from the reaction of PdCl2 and K2[(S2C=C(CN)2] in CH3CN. The complex has three dimensional network structure, in which two Pd, two K, four S, four N and twelve C atoms form a 24-membered ring, and the rings are further arranged in eclipsed configuration along c axis to give a channel with H2O as guest molecules.
Large Scale Supramolecular Self-Assembly of Graft-Copolymers Prepared by Rapid Evaporation of Organic Solvents
Authors: Kishida Akio , Seto Fusako , Hiwatari Ken-ichiro , Serizawa Takeshi , Muraoka Youichiro , Akashi Mitsuru 
Published: November 2003

Abstract
Large scale supramolecular self-assembly was prepared by using poly(ethylene glycol) (PEG) macromonomer-g-poly(styrene) (PSt) copolymers. The ordered structure of mesh- and crater-like morphologies were obtained depending on St/macromonomer ratio and the solution concentration.
A Mild and Rapid Regeneration of Alcohols from Allyl Ethers by ZrCl4/NaBH4
Authors: Chary K Purushothama , Mohan G Hari , Iyengar D S 
Published: November 2003

Abstract
A new extremely facile, spontaneous and efficient cleavage of allyl protection is developed employing ZrCl4/NaBH4.
A New Strategy toward Construction of Organic-Inorganic Hybridized Molecules. An Infinite One-Dimensional Chain Structure Assembled with Hydrogen- and Coordinate-Bonds
Authors: Kitamura Hideki , Ozawa Tomohiro , Jitsukawa Koichiro , Masuda Hideki , Einaga Hisahiko 
Published: November 2003

Abstract
Two novel organic-inorganic hybridized molecules assembled with hydrogen- and coordinate-bonds, [Rh2(O2CMe)4(daapy)2] (daapy = 2,6-diacetylaminopyridine) and {[Rh2(O2CMe)4][Ni(bpbg)2]}n (bpbg = biphenylbiguanide), have been prepared, which have been characterized by UV-vis, IR, and 1H NMR spectroscopic and thermogravimetric (TG) and X-ray diffraction methods.
Nickel-Catalyzed Tandem Coupling of Enones, Alkynes, Alkynylzincs, and Chlorotrimethylsilane
Authors: Ikeda Shin-ichi , Kondo Kouji , Sato Yoshiro 
Published: November 2003

Abstract
A nickel complex catalyzes a new tandem coupling of chlorotrimethylsilane (Me3SiCl), α,β-enones 1, alkynes 2, and di(alkynyl)zincs 7 (R′ = Bu, t-Bu, Me3Si, and Ph) to give the coupling products 3. This procedure was complementary to the reaction with alkynyltins.
Characteristic Molecular Patterns Formed by N-Octadecylbenzamide and N-8-Quinolyloctadecanamide Self-assembled on a Graphite Surface
Authors: Qian Pu , Nanjo Hiroshi , Yokoyama Toshiro , Suzuki Toshishige M 
Published: November 2003

Abstract
Self-assembled monolayers of N-octadecylbenzamide (ODB) and N-8-quinolyloctadecanamide (ODQ) have been observed on the solution-solid interface by scanning tunneling microscope (STM). ODB molecules form stripe shaped lamella structure whereas ODQ gave a mosaic pattern in which four molecular sets are interlocked alternately like jigsaw pieces.
Palladium(II)-induced Alkali Metal Ion Incorporation of 2,6-Disubstituted Pyridines with Bis(alkoxyethyl) Malonate Subunits
Authors: Mutou Tomoko , Amimoto Kiichi , Kanatomi Hajime , Koyama Hiroyuki , Kawato Toshio 
Published: November 2003

Abstract
A series of 2,6-bis(2,2′-dicarbalkoxyethyl)pyridine ligands were prepared. A couple of the ligands linked by a trans-PdCl2 unit extracted alkali metal ions from an aqueous media into a chloroform media, while a single pyridine ligand did not work as an extractive reagent.
Electrochemical Evidence of the Redox-controlled Ligand Exchange of the Heme in the CO-sensing Transcriptional Activator CooA
Authors: Nakajima Hiroshi , Aono Shigetoshi 
Published: November 2003

Abstract
The CO-sensing transcriptional activator CooA contains the six-coordinate, low-spin protoheme as a CO sensor. In this work, the reduction and oxidation midpoint potentials of CooA were determined by electrochemical redox titrations, which were −320 mV and −260 mV (vs. NHE), respectively. The different midpoint potentials provide evidence for exchange of the heme axial ligand during the change in the redox state of the heme.
Silapericyclyne, (Ph2SiC≡C)6: Spontaneous Conformational Resolution of Boat- and Chair-‘Exploded’ Cyclohexane
Authors: Unno Masafumi , Saito Takashi , Matsumoto Hideyuki 
Published: November 2003

Abstract
The silapericyclyne, (Ph2SiC≡C)6 was found to undergo spontaneous conformational resolution into the chair and boat conformations by crystallization from THF-MeOH. In solution, these two isomers rapidly interconvert, and could not be separately detected even at low temperature by 1H NMR.
Effect of Pulsed Illumination on the Belousov-Zhabotinsky Reaction Catalyzed with Tris(bipyridine) Ruthenium(II) in Continuous Stirred Tank Reactor
Authors: Matsumura-Inoue Takeko , Nakamura Tatsuhito , Mori Yoshihito , Hanazaki Ichiro 
Published: November 2003

Abstract
The photochemical response of BZ reaction with photosensitive Ru(bpy)32+ has been studied under pulsed illumination in a continuous–flow stirred tank reactor, CSTR. Two types of photo-response, the advanced and delayed phase shifts of oscillation, are observed depending on the initial concentrations of malonic acid (MA) or Br− and the timing of a pulsed illumination.
A Low Temperature Nitridation Route for Nanocrystalline AlN
Authors: Lu Qingyi , Hu Junqing , Tang Kaibin , Qian Yitai , Zhou Guien , Liu Xianming , Xing Jinyun 
Published: November 2003

Abstract
6 nm crystalline AlN has been synthesized through a simple reaction between commercial Al and NH4Cl in an autoclave at 580 °C which is much lower than those of traditional methods. X-ray diffraction result indicates the formation of hexagonal AlN nanocrystallites. Transmission electron microscopy image shows that the average size of the crystallites is 6 nm. The possible synthetic mechanism of AlN is proposed
Novel Rh(I)-Catalyzed Reaction of Arylzinc Compounds with Methyl Halides
Authors: Hossain Kabir M , Takagi Kentaro 
Published: November 2003

Abstract
The cross-coupling reactions of arylzinc compounds with methyl iodide or substituted methyl halides like benzyl bromides took place smoothly by the catalysis of Rh(I)-dppf complex.
Chiral-Selective Formation of S-Bridged CoIIIPdIICoIII Trinuclear Complexes by Using trans(N)-[Co(d-pen-N,O,S)2]− as a Bidentate-S,S Complexed-Ligand (d-pen = d-Penicillaminate)
Authors: Konno Takumi , Matsuno Nikichi , Okamoto Ken-ichi , Hirotsu Masakazu 
Published: November 2003

Abstract
The reaction of [PdCl2{Co(aet)2(en)}]+ (aet = 2-aminoethanethiolate) with trans(N)-[Co(d-pen-N,O,S)2]− (d-pen = d-penicillaminate) in water led to the formation of three optically active S-bridged CoIIIPdIICoIII complexes, [Pd{Co(d-pen-N,O,S)2}2]0 (1), Λ-[Pd{Co(d-pen-N,O,S)2}{Co(aet)2(en)}]2+ (Λ-2), and ΔΔ-[Pd{Co(aet)2(en)}2]4+ (ΔΔ-3). The molecular structure of Λ-2 was determined by X-ray crystallography.
Synthesis and Structure of Chiral (R)-2,2′-Bis-Silyl-Substituted 1,1′-Binaphthyl Derivatives
Authors: Hoshi Takashi , Shionoiri Hiroshi , Suzuki Toshio , Ando Masayoshi , Hagiwara Hisahiro 
Published: November 2003

Abstract
First synthesis of optically active 2,2′-bis-silyl-substituted 1,1′-binaphthyl derivatives, (R)-(+)-2,2′-bis(trimethylsilyl)-1,1′-binaphthyl ((R)-(+)-1) and (R)-(−)-2,2′-bis(dimethylphenylsilyl)-1,1′-binaphthyl ((R)-(−)-2), has been accomplished by the direct bis-silylation of chiral 2,2′-dibromo-1,1′-binaphthyl (DBBN). The molecular structure and the absolute configuration of (R)-(−)-2 have been determined by means of X-ray crystallography.
Stereocontrolled Synthesis of (+)-Acuminolide and Determination of Its Absolute Configuration
Authors: Furuichi Noriyuki , Kato Mariko , Katsumura Shigeo 
Published: November 2003

Abstract
As a demonstration for an easy supply of the enantiomerically pure intermediate for the synthesis of labdane diterpenoids, stereocontrolled synthesis of (+)-acuminolide was achieved, and its absolute configuration was determined.
Structures and Electrical Properties of (EO-TTP)2AsF6
Authors: Misaki Yohji , Tanaka Koji , Taniguchi Masateru , Yamabe Tokio , Kawamoto Tadashi , Mori Takehiko 
Published: November 2003

Abstract
The title material, where EO-TTP is 2-(4,5-ethylenedioxy-1,3-dithiol-2-ylidene)-5-(1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene, shows metallic conducting behavior down to 1.5 K. X-Ray structure analysis reveals it has the so-called β-type array of donors.
New Near-Infrared Spectrophotometry for d8 Metal Ions, NiII and PtII, with 2,2′-Dithiobis(1-aminonaphthalene) in Aqueous Micellar Solutions
Authors: Terazono Yukiko , Hoshino Hitoshi , Yotsuyanagi Takao 
Published: November 2003

Abstract
1-Amino-2-naphthalenethiolate ion (C10H6NH2S−), produced from 2,2′-dithiobis(1-aminonaphthalene) (DTAN), forms 1:2 chelates with d8 metal ions (NiII and PtII) in aqueous PONPE 20 micellar solutions, and then subsequent oxidation of the chelates with O2 yield new NIR-absorbing chelates [MII(C10H6NHS·)2]0. The remarkable NIR absorption properties are as follows: for PtII (794 nm) ε = 5.03 × 104 M− cm−1; for NiII (884 nm) ε = 4.73 × 104 M−1 cm−1.
Palladium-Catalyzed Three-Component Coupling Reaction of Aryl Halides, Norbornadiene and Alkynols. Convenient Synthesis for Their Ternary Coupling Products
Authors: Choi Cheol-Kyu , Tomita Ikuyoshi , Endo Takeshi 
Published: November 2003

Abstract
2,3-Disubstituted norbornenes were obtained by the Pd/Cu-catalyzed three-component ternary coupling reaction of aryl halides, norbornadiene, and alkynols in the presence of aqueous NaOH and a phase transfer catalyst in toluene at 100 °C in high yields.
Synthesis of (Rc,Ss)-1,1,1-Trifluoro-3-(p-tolylsulfinyl)-2-propanol by an Asymmetric Reduction with a Yeast, Yamadazyma farinosa, as a Key-step
Authors: Sakai Atsushi , Bakke Mikio , Ohta Hiromichi , Kosugi Hiroshi , Sugai Takeshi 
Published: November 2003

Abstract
(Rc,Ss)-1,1,1-trifluoro-3-(p-tolylsulfinyl)-2-propanol (&gt;99% e.e.), an important reagent for the asymmetric protonation of substituted enolates, was prepared (70%) from (S)-methyl p-tolyl sulfoxide. The stereoselectivity of the Yamdazyma farinosa-catalyzed reduction of carbonyl groups, the key step for the introduction of an asymmetric carbon, was greatly affected by the stereochemistry of the asymmetric sulfur atom. The reduction of (S)-1,1,1-trifluoro-3-(p-tolylsulfinyl)-2-propanone proceeded smoothly and in a quite stereoselective manner to give the desired compound, while a 76 : 24 mixture of (Rc,Rs)- and (Sc,Rs)-isomers was obtained from the substrate with the opposite (R)-configuration.
Mixed Electronic-Oxide Ionic Conductivity and Oxygen Permeating Property in Ni Doped LaGaO3 Perovskite Oxide
Authors: Arikawa Hiroshi , Yamada Takashi , Ishihara Tatsumi , Nishiguchi Hiroyasu , Takita Yusaku 
Published: December 2003

Abstract
It was found that LaGaO3 perovskite oxide doped with Ni for Ga site exhibits a high mixed electronic-oxide ionic conduction. Oxygen permeation rate was increased with increasing Ni content and it attained to a maximum value of 2.15 cm3/min cm2 at 1273 K when 25 mol% Ni was doped.
A Macrocyclic Sialic Acid Cluster as a Host, as an Adsorbate, and as a Ligand for Lectin and Virus
Authors: Fujimoto Kazuhisa , Hayashida Osamu , Aoyama Yasuhiro , Guo Chao-Tan , Hidari Kazuya I-P Jwa , Suzuki Yasuo 
Published: December 2003

Abstract
A calix[4]resorcarene-based macrocyclic octa(sialic acid) derivative 1d was prepared. It forms complexes with such guests as rose bengal in water. It forms a closely packed monolayer on an SPR sensor chip; a sialo-targeting lectin is readily adsorbed on the saccharide residues exposed to bulk water. Compound 1d also inhibits the hemagglutination of human erythrocytes and also cytopathic effect of MDCK (Madine-Darby canine kidney) cells mediated by human influenza A viruses at concentrations of 5-50 μM.
Atomic Force Microscopy of Photochemistry of 4,4′-Dimethylbenzophenone in the Solid State
Authors: Zeng Qingdao , Wang Chen , Bai Chunli 
Published: December 2003

Abstract
The formation of regular nanostructures by photodimerization of 4,4′-dimethylbenzophenone (1) through intermolecular hydrogen abstraction, is investigated using atomic force microscopy (AFM) and known crystal packing data. AFM reveals that the crystal face (001) of 1 exhibits volcanoes. All the experimental results are correlated with the crystal structure. Molecular interpretation of the AFM features of 1 is given.
Post-Metallocenes: A New Bis(salicylaldiminato) Zirconium Complex for Ethylene Polymerization
Authors: Matsui Shigekazu , Mitani Makoto , Saito Junji , Tohi Yasushi , Makio Haruyuki , Tanaka Hidetsugu , Fujita Terunori 
Published: December 2003

Abstract
A new bis(salicylaldiminato) zirconium complex was synthesized and its structure determined by X-ray analysis. This complex displayed an exceptionally high ethylene polymerization activity of 519 kg-PE/mmol-Zr·h using methylaluminoxane (MAO) as a cocatalyst. In contrast, by using Ph3C+B−(C6F5)4 / iBu3Al as a cocatalyst, the complex furnished polyethylene of exceptionally high molecular weight (Mv; 505 × 104).
Synthesis of Centered Icosahedral Europium Cluster Formed by Bis(l-prolinato)nickel(II) Ligands and Isolation of an Electrochemically Reduced Product of Its Cluster
Authors: Igarashi Satoshi , Yukawa Yasuhiko 
Published: December 2003

Abstract
A centered icosahedral europium(III) cluster formed by bis(l-prolinato)nickel(II) ligands was prepared and an electrochemically reduced product of its cluster was isolated. The crystal of the reduced product was isomorphous to that of the EuIII-cluster and the cluster structure was retained in the reduced product.
Heat Shock Protein 70B mRNA Expression in L929 Cells Attached on Lipid Films
Authors: Kishida Akio , Matsuyama Takahisa , Nakashima Mihoko , Serizawa Takeshi , Sugimura Kazuhisa , Akashi Mitsuru 
Published: December 2003

Abstract
L929 cells adhesion and function on the lipid films prepared by casting method were studied. The function of the cells adhered on to lipid films was estimated by HSP70B mRNA analysis. It comes clear that L929 cells adhered on the synthetic lipid films suffered some stress from the substrates.
Photoamination of 1,2-Diarylcyclopropanes Using 2,2′-Dialkoxy-1,1′-binaphthalene as Redox-Photosensitizer
Authors: Yasuda Masahide , Kojima Ryuji , Tsutsui Hiroshi , Watanabe Louis A , Hobo Junpei , Yamashita Toshiaki , Shiragami Tsutomu , Shima Kensuke 
Published: December 2003

Abstract
1-Amino-1,3-diarylpropanes were prepared by the photoamination of 1,2-diarylcyclopropanes with NH3, using 2,2′-dialkoxy-1,1′-binaphthalene and m-dicyanobenzene as sensitizers and electron acceptor.