bluuebunny/crossref_metadata_2025_split huggingface dataset:
Catalytic Methanol Decomposition at Low Temperature over Pd Catalyst Derived from Mesoporous Silica Carried Pd-Hydrotalcite
Authors: Liu Yanyong , Suzuki Kunio , Hamakawa Satoshi , Hayakawa Takashi , Murata Kazuhisa , Ishii Tomoko , Kumagai Mikio 
Published: December 2003

Abstract
Pd-Hydrotalcite (denoted by Pd(HT)) was uniformly dispersed on HMS (hexagonal mesoporous silica) by synthesizing Pd(HT) in the HMS suspension and the composite was used as a catalyst precursor for methanol decomposition. The novel catalyst showed high activity and selectivity to synthesis gas at low temperature due to the large surface area and high Pd dispersion.
Efficient Photoreduction of Cytochrome c in the Presence of a Bilayer Membrane of N-Ethylcarbazole-Containing Amphiphiles
Authors: Morita Tomoyuki , Kimura Shunsaku , Imanishi Yukio 
Published: December 2003

Abstract
Photoreduction of cytochrome c (cyt.c) in the presence of a bilayer membrane of amphiphiles having an N-ethylcarbazolyl (ECz) group was investigated. It was found that efficient energy migration among ECz groups promoted electron transfer to cyt.c, and the photoreduction yield was thus insensitive to the concentration of cyt.c, but was determined mainly by the amount of a sacrificial donor bound to the membrane.
Dual Electron Injection from Charge-Transfer Excited States of TiO2-Anchored Ru(II)-4,4′-Dicarboxy-2,2′-biquinoline Complex
Authors: Islam Ashraful , Hara Kohjiro , Singh Lok Pratap , Katoh Ryuzi , Yanagida Masatoshi , Murata Shigeo , Takahashi Yoshiaki , Sugihara Hideki , Arakawa Hironori 
Published: December 2003

Abstract
Dual electron injection phenomenon observed for the first time in dithiocyanato bis(4,4′-dicarboxy-2,2′-biquinoline)ruthenium(II) when anchored to nanocrystalline TiO2 film indicates an ultrafast rate of electron injection into the conduction band of TiO2 which is competitive to internal conversion and/or intersystem crossing between the two lowest excited MLCT states.
Efficient Synthesis of B- and C-Rings Components of Phycobilin Derivatives for Structure/Function Analysis of Phytochrome
Authors: Ohta Atsuko , Sawamoto Daisuke , Jayasundera Krishanthi Padmarani , Kinoshita Hideki , Inomata Katsuhiko 
Published: December 2003

Abstract
B- and C-Rings components of phycobilin derivatives were efficiently prepared starting from the corresponding lactones. This synthetic method made it possible to prepare not only phycocyanobilin (PCB), but also PCB derivatives having butanoic acid side chain(s) instead of propanoic one(s), regioselectively monoesterified PCB derivatives at C8 or C12, and regioisomers of PCB with respect to methyl and propanoic acid substituents of B- and C-rings for the first time toward the structure/function analysis of phytochrome.
Photolysis of anti-Dodecaalkyltricyclo[4.2.0.02,5]octasilane: Generation and Reactions of Cyclotetrasilene
Authors: Kyushin Soichiro , Meguro Akira , Unno Masafumi , Matsumoto Hideyuki 
Published: December 2003

Abstract
The photolysis of tricyclic ladder oligosilanes gave a cyclotetrasilene intermediate, which was trapped by methanol, 2,3-dimethyl-1,3-butadiene, and anthracene. Anthracene underwent a cycloaddition with the cyclotetrasilenes at the 9,10- and 1,4-positions depending on the substituents on the cyclotetrasilene rings.
Preparation of α-Fe2O3 Nanoparticles by Sol-Gel Process with Inorganic Iron Salt
Authors: Dong Wenting , Wu Sixin , Chen Danping , Jiang Xiongwei , Zhu Congshan 
Published: December 2003

Abstract
A simple new method for the preparation of α-Fe2O3 nanoparticles by sol-gel process using ethylene oxide and FeCl3 as starting materials is reported. The size and morphology of α-Fe2O3 nanoparticles can be controlled by changing the initial concentration of FeCl3 and amount of ethanol.
Z/E Selectivity on the Formation of 2,2′-Diacyl-9,9′-bifluorenylidenes Was Controlled by the Length of Acyl Side Chains
Authors: Minabe Masahiro , Oba Toru , Tanaka Masayuki , Kanno Keiko , Tsubota Motohiro 
Published: December 2003

Abstract
Reaction of 2-acetyl-9-bromofluorene with base afforded Z- and E-2,2′-diacetyl-9,9′-bifluorenylidene in a ratio of 30/70. A similar treatment of 2-stearoyl-9-bromofluorene gave the corresponding bifluorenylidene in a Z/E ratio of 90/10. The observed dependency of Z/E ratio on the chain length is attributable not to steric repulsion, but to intra- and/or inter-molecular attractive forces between the side chains.
Electrically Induced Rapid Deformation of Nonionic Gel
Authors: Zheng Jianming , Watanabe Masashi , Shirai Hirofusa , Hirai Toshihiro 
Published: December 2003

Abstract
Chemically crosslinked poly(vinyl alcohol) (PVA) gel swollen with dimethyl sulfoxide (DMSO), was first found to bend vividly in air by applying a DC electric field. A rapid and large bending motion was observed. As neither water nor an ionic component exists in the gel, no electrolysis occurs in the actuation process. It would be an advantage over polyelectrolyte gels for durability and efficiency in practical application as a soft actuator. We report here the observed results and propose a tentative mechanism for the reversible-and-large deformation.
A Novel Microporous Cluster Polymer {[Et4N]2[WS4Cu4(CN)4]}n with Cyanide-Bridged Three-Dimensional Open-Framework
Authors: Zhang Chi , Jin Guocheng , Xu Yan , Fun Hoong-Kun , Xin Xinquan 
Published: December 2003

Abstract
Reaction of (Et4N)2WS4 with CuCN (molar ratio of 1:4) in pyridine affords an interesting three-dimensional cluster polymer with open-framework. The crystal structure determination shows that the anionic WS4Cu4 units bridged by cyanide produce three-dimensional channels running down the crystallographic a axis.
Polymorphism of Silica Mesostructures Templated by Poly(Ethylene Oxide)-b-Poly(Butylene Oxide) Diblock Copolymer
Authors: Yu Yonghao , Yu Chengzhong , Yu Zhang , Zhao Dongyuan 
Published: December 2003

Abstract
A family of silica mesostructures including highly ordered 2-dimensional (2D) hexagonal (H1) and lamellar (Lα) symmetries have been prepared by using poly(ethylene oxide)-poly(butylene oxide) diblock copolymer as a structure-directing agent under acidic synthesis condition.
Unusually Lowered Acidity of Ammonium Group Surrounded by Crown Ether in a Rotaxane System and Its Acylative Neutralization
Authors: Kihara Nobuhiro , Tachibana Yuya , Kawasaki Hiroaki , Takata Toshikazu 
Published: December 2003

Abstract
Acidity of a secondary ammonium group in a rotaxane system with a crown ether was unusually lowered. N-Acylation of the ammonium group by acid anhydrides or chlorides proceeded slowly in the presence of excess tertiary amine to give the N-acylated rotaxanes without salt structure.
Cyclization of O-Pentafluorobenzoyloxime Having (diene)Fe(CO)3 Moiety
Authors: Sakurai Hidehiro , Ichikawa Tomoko , Narasaka Koichi 
Published: December 2003

Abstract
O-Pentafluorobenzoyloxime having (cyclohexadiene)Fe(CO)3 moiety cyclizes to give trans-fused dihydroindole derivative. This C-N bond formation proceeds by radical chain mechanism initiated by molecular oxygen. Thus formed trans-fused dihydroindoles easily isomerize to the cis-fused isomers on acidic silica gel.
Synthesis of Macroporous Materials with Zeolitic Microporous Frameworks by Self-Assembly of Colloidal Zeolites
Authors: Wang Y J , Tang Y , Ni Z , Hua W M , Yang W L , Wang X D , Tao W C , Gao Z 
Published: December 2003

Abstract
This study reports a novel and flexible technique to synthesize bimodal porous materials with ordered macropores whose walls are composed of microporous zeolites by self-assembly of nanocrystals of silicalite-1 and ZSM-5. The materials prepared by this novel technique are well crystalline and possess uniform macropores interconnected in three dimensions through windows.
2-Aryl-5-epoxynitrile Anion Cyclizations : Total Syntheses of (±)-α-Cuparenone and (±)-Epilaurene
Authors: Avila-Zárraga J Gustavo , Maldonado Luis A 
Published: December 2003

Abstract
Total syntheses of the cyclopentane sesquiterpenes of the title using an epoxynitrile anion cyclization reaction as key step, are described. The preferential formation of the cyclopentane ring from a terminal disubstituted 5-epoxynitrile (e.g. 2b) had not previously been observed. The 2-aryl substituent is reasonably assumed to be responsible for this divergence.
Cobalt Molybdenum Bimetallic Nitride Catalysts for Ammonia Synthesis
Authors: Kojima Ryoichi , Aika Ken-ichi 
Published: December 2003

Abstract
Cs promoted cobalt molybdenum bimetallic nitride (Co3Mo3N) synthesized by nitridation of cobalt molybdate hydrate with ammonia at 973K was stable and more active for ammonia synthesis (15 mmol h−1g−1) at 673 K under 3.1 MPa (N2 + 3H2) than a doubly promoted iron catalyst.
Novel Tetranulear Cobalt(II)-Cobalt(III) Mixed-Valence Complexes with a Significant Difference in Magnetism
Authors: Mikuriya Masahiro , Nagao Nobuyuki , Kondo Kazuhiro 
Published: December 2003

Abstract
Tetranuclear cobalt(II)-cobalt(III) mixed-valence complexes with bis(benzoylacetone)-1,3-diiminopropan-2-ol (H3L), [Co4L2(C2H5O)4]·CH3CN and [Co4L2(CH3O)4]·2CH2Cl2, have been synthesized and characterized by X-ray crystallography and magnetic susceptibility measurement.
Hydrophilic-Hydrophobic Balance of Bis(octylethylenediamine) Zn(II), Cd(II), and Pd(II) Chlorides in Methanol/Water and Chloroform/Water Systems
Authors: Iida Masayasu , Er Hua , Hisamatsu Naoko , Tanase Tomoaki 
Published: December 2003

Abstract
Double-chained bis(N-octylethylenediamine ( = OE)) complexes, such as Zn(OE)2Cl2, Cd(OE)2Cl2, and Pd(OE)2Cl2, were prepared and their selective solubilities in water/chloroform and water/methanol solutions were studied. Although all the complexes are poorly soluble in water, they showed clearly different solubilities in the water/organic mixed solvents depending on each amphiphilic character.
Determination of Arrhenius Parameters from a Single Rate Curve
Authors: Amasaki Iwao , Gao Zhiming , Nakada Masahiro 
Published: December 2003

Abstract
A simple fitting method was proposed to determine Arrhenius parameters from a single rate curve without demanding for integral curve at the same time. This is the merit of the fitting method since the commonly used differential methods still require integral curve besides the original rate curve.
Rhenium-Mediated Photochemical Carbon Dioxide Reduction in Compressed Carbon Dioxide
Authors: Hori Hisao , Koike Kazuhide , Takeuchi Koji , Sasaki Yoshiyuki 
Published: December 2003

Abstract
Rhenium-bipyridine complexes soluble in compressed CO2 were prepared and employed in the first example of photochemical reduction of CO2 mediated by metal complexes in compressed CO2, without use of an organic liquid solvent.
Vibrational Spectroscopy of Endohedral Dimetallofullerene, La2@C80
Authors: Moriyama Masaya , Sato Tadatake , Yabe Akira , Yamamoto Kazunori , Kobayashi Kaoru , Nagase Shigeru , Wakahara Takatsugu , Akasaka Takeshi 
Published: December 2003

Abstract
The first FT-IR spectra of La2@C80 are observed at temperatures from 353 to 83 K by dispersing the sample into the KBr pellet, which confirm that the C80 cage has Ih symmetry, as supported from theoretical calculations. Also discussed is the rotational motion of the C80 cage.
Oxidation Capability of Carbon Dioxide in the Dehydrogenation of Ethylbenzene over Vanadium Oxide-Loaded MgO Catalyst
Authors: Sakurai Yoshihiro , Suzaki Takamasa , Nakagawa Kiyoharu , Ikenaga Na-oki , Aota Hiroyuki , Suzuki Toshimitsu 
Published: December 2003

Abstract
Carbon dioxide could oxidize the reduced vanadium oxide species on MgO and keep vanadium species at a high oxidation state, during the dehydrogenation of ethylbenzene to styrene under carbon dioxide, giving a markedly high yield and selectivity of styrene.
X-Ray Crystallographic Analysis of the NH Form of a Salicylideneaniline at 15 K
Authors: Ogawa Keiichiro , Harada Jun , Tamura Itaru , Noda Yukio 
Published: December 2003

Abstract
The structure of the NH form of a salicylideneaniline was determined by X-ray crystallographic analysis of N-(5-chloro-2-hydroxybenzylidene)-4-hydroxyaniline at 15 K. Comparison of the X-ray structure with the structure obtained from quantum mechanical calculations using density functional theory revealed that the NH form is predominantly zwitterionic in crystals and predominantly quinoidal in gas phase.
Flexible Molecular Tweezer Based on a Dioxa[2.2]orthocyclophane Linked with Weak Electron Acceptor
Authors: Kurebayashi Hirotaka , Fukazawa Yoshimasa 
Published: December 2003

Abstract
A flexible receptor having three aromatic chromophores can bind a weak electron acceptor which is linked covalently to the receptor with an appropriate alkyl chain. The receptor has tweezer type conformation when the acceptor was entrapped within its cavity. Sandwich type donor-acceptor-acceptor arrangement was realized in solution.
Cu/ZrO2 Catalysts for NO-CH4 Reaction
Authors: Aritani Hirofumi , Kawaguchi Shuji , Yamamoto Takashi , Tanaka Tsunehiro , Okamoto Yasuaki , Imamura Seiichiro 
Published: December 2003

Abstract
Cu(2wt%)/ZrO2 shows a high activity for catalytic NO decomposition with CH4 at 873 K. Cu K-edge XANES results show that Cu2+ ions were reduced to form Cu+ after the reaction, and, metallic Cu0 was scarcely seen. It is concluded that the redox of the Cu ions (Cu2++) plays an important role for NO-CH4 reaction. Cu
Preparation of Periodic Microstructured Diamond Surfaces
Authors: Okuyama Suguru , Matsushita Sachiko I , Fujishima Akira 
Published: December 2003

Abstract
Two types of periodic surfaces were fabricated by utilizing two-dimensionally ordered arrays, in one case as a template and in another as a mask. In the first case, a bulb-like microstructured surface was formed, and, in the second, a cylinder-like microstructure. The Raman spectra of these films indicate that they consist mostly of diamond and therefore have a high refractive index as well as other well-known properties of diamond, making them attractive for photonic, electronic, and electrochemical applications.
Synthesis and Crystal Structure of New Salicylate-Bridged Coordination Polymer, [Cu2(sal)2(pyz)(MeOH)2]n
Authors: Longguan Zhu , Kitagawa Susumu , Kondo Mitsuru , Miyasaka Hitoshi 
Published: December 2003

Abstract
The title compound, {[Cu2(sal)2(pyz)]·2MeOH}n (H2sal = salicylic acid, pyz = pyrazine) (1), has been synthesized, and structurally characterized. Each sal ligand connects the three copper centers to afford a novel 2-D network structure. The CuII-sal framework forms a rhombus type two-dimensional coordination framework. The pyz molecules, which fill the voids of the network, bind to the Cu site to afford zigzag chain.
Cyclic Oligonuclear Fe6Na3 Complex with 2,6-Bis(salicylideneaminomethyl)-4-methylphenol
Authors: Mikuriya Masahiro , Ikemi Shinichiro , Yao Shigetoshi 
Published: December 2003

Abstract
A cyclic nonanuclear complex with 2,6-bis(salicylideneaminomethyl)-4-methylphenol (H3L), [Fe6Na3(L)3(CH3COO)12], has been synthesized and characterized by X-ray crystallography and magnetic susceptibility measurement.
Crystal Structure, Spectroscopy and Magnetic Properties of a Novel FeIII Unsymmetric Tetranuclear Complex: A Model for met-Hemerythrin
Authors: Fernandes Christiane , Neves Ademir , Vencato Ivo , Bortoluzzi Adaílton J , Drago Valderes , Weyhermüller Thomas , Rentschler Eva 
Published: December 2003

Abstract
N,N,N′-tris(2-pyridylmethyl)-1,3-diamino-2-propanol (HTPPNOL) has been synthesized and a novel tetranuclear antiferromagnetic iron(III) complex, containing bridging acetate, oxo, and alkoxo groups was characterized by X-ray crystallography, infrared, electronic, and Mössbauer spectroscopies and magnetic susceptibility measurements.
New Synthetic Method of Imides through Oxidative Photodecarboxylation Reaction of N-Protected α-Amino Acids with FSM-16
Authors: Itoh Akichika , Kodama Tomohiro , Inagaki Shinji , Masaki Yukio 
Published: December 2003

Abstract
FSM-16, a mesoporous silica, was found to promote the oxidative photodecarboxylation of N-acyl-protected α-amino acids in hexane to afford the corresponding imides.
Serendipitous Synthesis of Oligo(6-vinylsilyl-5-silacyclohepta-1,3-diene)s
Authors: Woo Hee-Gweon , Kim Bo-Hye , Sohn Honglae 
Published: December 2003

Abstract
The reaction of 1,4-dilithiotetraphenylbutadiene with excess vinyltrichlorosilane produces both the 1,2,3,4-tetraphenyl-6-dichlorovinylsilyl-5-dichlorosilacyclohepta-1,3-diene (1) and its oligomer (2). The precipitation of 2 in methanol yields its dimethoxy derivative (3). The dimethyl (4) and diphenyl (5) derivatives of 2 are obtained in good yields by reacting 1,4-dilithiotetraphenylbutadiene with excess chlorodimethylvinylsilane and chlorodiphenylvinylsilane, respectively, without forming their respective monomer. In contrast, the reaction of 1,4-dilithiotetraphenylbutadiene with excess allyltrichlorosilane grves 1-allyl-1-chloro-2,3,4,5-tetraphenylsilole only.
The Solid Phase, Room-Temperature Synthesis of Metal-free and Metallophthalocyanines, Particularly of 2,3,9,10,16,17,23,24-Octacyanophthalocyanines
Authors: Nemykin Victor N , Kobayashi Nagao , Mytsyk Vladislav M , Volkov Sergey V 
Published: December 2003

Abstract
Room-temperature synthesis of phthalocyanines (pcs) by condensation of phthalonitriles in the presence of solid sodium methoxide in THF is proposed for the synthesis of metal-free pcs with temperature- and/or base-sensitive substituents. The addition of metal salts after metal-free pc formation in the same vessel produces metallopcs in moderate to high (ca. 30–90%) yields.
Site-Selective Complexation of Amphiphilic Compounds by Cyclodextrins
Authors: Harada Akira , Okumura Hiromichi , Okada Miyuko , Suzuki Syukuko , Kamachi Mikiharu 
Published: December 2003

Abstract
Cyclodextrins (CDs) have been found to form inclusion complexes with Triton X in a site-selective manner; α-CD binds an ethylene glycol chain specifically and β-CD binds a hydrophobic end group (an iso-octylphenyl group and a phenyl group) specifically.
Application of Self-Oscillation of the Electrical Potential across the Water-Oil-Water Liquid Membrane to Quantitative Analysis of Aluminum Nitrate
Authors: Yoshidome Toshifumi , Higashi Toshifumi , Kamata Satsuo 
Published: December 2003

Abstract
Self-oscillation of an electrical potential across a water-oil-water liquid membrane was measured in the presence of metal nitrate in one of the aqueous phases. Oscillation mode changed particularly in the case of metal ion with the electric charge of 3+, and the magnitude of the change monotonously increased in frequency with the concentration of Al(NO3)3.
Lipophilic Peptide as Novel Building Material of Molecular Sensor
Authors: Kuboyama Toshiharu , Mathew Beena , Nakamura Shigeo , Takagi Makoto 
Published: December 2003

Abstract
Lipophilic peptide derivatives 1 - 3 proved to complex with amines in chloroform in 1:1 ratio allowing distinct color change. Peptide 3 as compared with 2 indicated strikingly greater binding affinity, suggesting the importance of subtle modulation in hydrogen-bonded secondary structure of peptide chains in non-polar solvent.
Post-Metallocenes: Catalytic Perfomance of New Bis(salicylaldiminato) Zirconium Complexes for Ethylene Polymerization
Authors: Matsui Shigekazu , Mitani Makoto , Saito Junji , Matsukawa Naoto , Tanaka Hidetsugu , Nakano Takashi , Fujita Terunori 
Published: December 2003

Abstract
New bis(salicylaldiminato) zirconium complexes were synthesized and investigated as ethylene polymerization catalysts. As a result, we demonstrated that high molecular weight (Mw: 71.6 × 104) and super high activity (2096 kg-PE/mmol-Zr·h) were accomplished by changing the ligand structure.
Observation of Positive/Negative Bands in a Polarized External Reflection Vis-Spectrum and the Orientation of Protonated Tetraphenylporphyrin Adsorbed at Liquid-Liquid Interface
Authors: Moriya Yoshio , Amano Ryoko , Sato Takuya , Nakata Shin-ichi , Ogawa Nobuaki 
Published: December 2003

Abstract
A p-polarized visible external reflection spectrum comprised of positive and negative absorption bands was certainly observed as to the protonated tetraphenylporphyrin adsorbed at toluene-aqueous sulfuric acid interface. The results were qualitatively explained that the protonated molecules in J-aggregate could orientate obliquely to the interface.
First Observation of Precursory Structural Changes of Aliphatic Parts in the α-γ Polymorphic Transition of Dl-Norleucine by Temperature-Scanning Time-Resolved FT-IR Spectroscopy
Authors: Sonoyama Masashi , Yajima Hirofumi , Nakano Tatsuhiko , Matsumoto Masayuki , Tsukushi Itaru , Ishii Tadahiro 
Published: December 2003

Abstract
Polymorphic transition of Dl-norleucine from the α-form to the γ-form was investigated with temperature-scanning time-resolved FT-IR spectroscopy. The dynamic FT-IR measurements revealed the precursory structural changes in the aliphatic parts prior to the main overall polymorphic transition.
Gaseous Molecular Sieving Property of a Microporous Hollandite-type Hydrous Manganese Oxide
Authors: Wang Zheng-Ming , Tezuka Satoko , Kanoh Hirofumi 
Published: December 2003

Abstract
A microporous hollandite-type manganese oxide having protons as counter ions (H-Hol) was prepared by hydrothermal reaction and adsorption of various molecules from gas phase was examined. It is found that only H2O and NH3 can be adsorbed in the intra-pores; NH3 is inserted as NH4+ as a result of reacting with lattice protons. Chemisorption of NH3 is available even under co-existence of water, indicating that H-Hol can be an excellent selective trapper toward odor NH3.
Synthesis and Crystal Structure of Polymeric Oxovanadium(V) Complexes with Tetradentate Schiff Base Ligands
Authors: Tsuchimoto Masanobu , Yasuda Eriko , Ohba Shigeru 
Published: December 2003

Abstract
New polymeric oxovanadium(V) complexes with tetradentate Schiff base ligands, [VO(Xsalen)]SbF6 (H2Xsalen: N,N′-di-Xsalicylidene-1, 2-ethanediamine; X=5-MeO (methoxy) and H ) were prepared from monomeric [VO(Xsalen)(H2O)]NO3·H2O by changing the counter anion. X-Ray crystal structure analysis of [VO(5-MeOsalen)]SbF6 showed that the complex has ···VV=O···VV=O··· chains in the crystals.
The First Lipophilic Face-to-Face Dimers of Permethylated α-Cyclodextrin-Azobenzene Dyads through a p-Xylylene Spacer
Authors: Fujimoto Tatsuhiko , Uejima Yukihiro , Imaki Hiroya , Kawarabayashi Naoya , Jung Jong Hwa , Sakata Yoshiteru , Kaneda Takahiro 
Published: December 2003

Abstract
The synthesis of two new permethylated α-cyclodextrin derivatives 1 and their self-association to stable lipophilic face-to-face dimers 2 are described.
A Mild and Selective Cleavage of p-Methoxybenzyl Ethers by CBr4-MeOH
Authors: Yadav J S , Reddy BV Subba 
Published: December 2003

Abstract
p-Methoxybenzyl ethers were selectively deprotected to the corresponding alcohols and phenols in high yields by CBr4 in refluxing methanol under neutral reaction conditions.
Theoretical and Experimental Aspects of Bromination of Sampangine
Authors: Katsuyama Isamu , Zjawiony Jordan K 
Published: December 2003

Abstract
Based on MO calculations and experimental data, the unusual regioselectivity in bromination of sampangine (1) is discussed; the proposed mechanism includes initial interaction of bromine or some solvents with nitrogen atom (N-6 in 1) having a higher electron density.
Preparation and Photoelectrochemical Properties of Gold Electrodes Modified with [60]Fullerene-Linked Oligothiophenes
Authors: Hirayama Daigo , Yamashiro Takashi , Takimiya Kazuo , Aso Yoshio , Otsubo Tetsuo , Norieda Hiroyuki , Imahori Hiroshi , Sakata Yoshiteru 
Published: December 2003

Abstract
[60]Fullerene-linked quarter- and octithiophenes with a disulfide anchoring group have been synthesized, and a photovoltaic cell with a gold electrode modified with the octithiophene derivative showed a large photocurrent under illumination of visible light.