bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface Organometallic Chemistry of Tin: Grafting Reactions on Highly Dehydroxylated Silica
Authors: Adachi Mariko , Lefebvre Frédéric , Basset Jean-Marie 
Published: March 2006

Abstract
A new grafting method of organotin complexes with the surface of highly dehydroxylated silica is reported. Characterisation was achieved by surface microanalysis, in situ IR, solid state 13C CP-MAS and 119Sn MAS NMR. Bu3Sn-O-SnBu3 reacts with the strained siloxanes and opens these bridges at room temperature. The reaction occurs also with the remaining hydroxyl groups and with less strained siloxane bridges, leading in all cases to the same surface organometallic fragment ≡Si-O-SnBu3.
New and Effective Synthesis of 7-Triethylsilylbaccatin III from 7β,13α-Bistriethylsiloxy-1β,2α,10β-trihydroxy-9-oxo-4(20),11-taxadiene
Authors: Shiina Isamu , Saitoh Masahiro , Nishimura Koji , Saitoh Katsuyuki , Mukaiyama Teruaki 
Published: March 2006

Abstract
7β,13α-Bistriethylsiloxy-1β,2α,10β-trihydroxy-9-oxo-4(20),11-taxadiene (2), derived from 10-deacetylbaccatin III via degradation of oxetane ring, was conveniently converted into 7-triethylsilylbaccatin III (1) by way of a new and effective method for constructing oxetane ring. Thus, the synthesis of a precursor of taxol from novel taxoid 2 was accomplished.
Direct Condensation Polymerization of l-Lactic Acid Catalyzed by Distannoxane
Authors: Otera Junzo , Kawada Kazuko , Yano Toru 
Published: March 2006

Abstract
1,3-Disubstituted tetrabutyldistannoxanes effectively catalyze direct condensation polymerization of water-containing l-lactic acid to afford a high-molecular-weight polymer.
Structure-sensitivity of the Dynamics of CO Oxidation on Pd(111), Pd(110) and Polycrystalline Pd Surfaces: Infrared Chemiluminescence Study of the Product CO2
Authors: Uetsuka Hiroshi , Watanabe Koji , Ohnuma Hisashi , Kunimori Kimio 
Published: March 2006

Abstract
The infrared chemiluminescence technique has been applied to the catalytic oxidation of CO on Pd(111), Pd(110) and polycrystalline Pd surfaces. The product CO2 molecules were vibrationally and rotationally excited in all cases. However, the vibrational energy states of CO2 were different among these three surfaces. This result means that the structure of the activated CO2 complex (i.e., the dynamics of CO oxidation) depends on the surface structures. In addition, the steady-state reaction rates of CO oxidation as a function of surface temperature were also different among the Pd surfaces. These results show that the CO oxidation on Pd is structure-sensitive not only in the kinetics but also in the dynamics.
An Unexpected Route to Fluorinated Anisoles
Authors: Takechi Naoto , Fukai Yasushi , Oka Kazuyoshi , Huisgen Rolf 
Published: March 2006

Abstract
We found a new one-pot procedure for the synthesis of polyfluoroanisoles from polyfluoroanilines. The reaction involves aromatic nucleophilic substitution of o- or p-fluorine of benzenediazonium salt with mathoxy group followed by reductive removal of the diazonium group.
Hydrozirconation of Allenyl Sulfide for Generating γ-Thio-substituted Allylzirconium Species and Its Reaction with Carbonyl Compounds
Authors: Chino Masao , Liang Guang Hao , Matsumoto Takashi , Suzuki Keisuke 
Published: March 2006

Abstract
Hydrozirconation of allenyl sulfide generates a γ-thio-allylzirconocene species, which reacts with aldehydes and ketones to give anti olefinic β-sulfenyl alcohols in highly regio- and stereoselective manner.
Biocatalytic Preparation of (R)-(−)-4-(Phenylthio)-2-butanol and (R)-(−)-4-(Phenylsulfonyl)-2-butanol by the Sequential Use of Pichia farinosa and Rhodococcus rhodochrous
Authors: Sugai Takeshi , Ohtsuka Yoshikazu , Ohta Hiromichi 
Published: March 2006

Abstract
Preparation of (R)-4-(phenylthio)-2-butanol and (R)-4-(phenylsulfonyl)-2-butanol has been established based on the sequential use of two biocatalysts. A Pichia farinosa IAM 4682 mediated reduction of 4-(phenylthio)-2-butanone afforded (R)-4-(phenylthio)-2-butanol (91%e.e.) in 90% yield. Contaminating (S)-enantiomer in the resulting product was selectively oxidized by Rhodococcus rhodochrous IFO15564 to leave pure (R)-enantiomer in 87% yield. From this product, highly enantiomerically pure (R)-4-(phenylsulfonyl)-2-butanol was obtained by hydrogen peroxide oxidation.
Two New Cembrane-type Diterpenoids from Okinawan Soft Coral of the Genus, Sarcophyton
Authors: Miyaoka Hiroaki , Taira Shouta , Mitome Hidemichi , Iguchi Kazuo , Matsumoto Keita , Yokoo Chihiro , Yamada Yasuji 
Published: March 2006

Abstract
Two new cembrane-type diterpenoids, sarcodiol (1) and 3,4-epoxysarcophytonin (4), were isolated from Okinawan soft coral of the genus, Sarcophyton. Their structures were determined from spectroscopic measurements, X-ray analysis and chemical reaction.
Molecular Structure of 1,3-Disubstituted π-Allyl Palladium(II) Complexes with a Chiral Diphosphine: The Intermediate of Palladium-catalyzed Asymmetric Allylic Alkylation
Authors: Yamaguchi Motowo , Yabuki Masayuki , Yamagishi Takamichi , Sakai Ken , Tsubomura Taro 
Published: March 2006

Abstract
Structural studies by X-ray analysis and NMR spectroscopy of the π-allyl complex, [Pd(η3-1,3-diphenylallyl)((S)-BINAP)]PF6·AcOEt, have been carried out, and revealed the stereochemical feature for the intermediate of palladium-catalyzed asymmetric allylic alkylation. The dissimilarity of the two phenyl groups attached to the π-allyl moiety is assumed to be one of the origin of the selectivity. In solution two configurational isomers, (syn, syn) and (syn, anti), exist.
Triple -Decker Trinuclear Porphinatoruthenium(II) Complexes Bridged with Pyrazine or 4,4′-Bipyridine-Preparation and Electrochemical Oxidation
Authors: Endo Akira , Tagami Uno , Wada Yukari , Saito Miki , Shimizu Kunio , Satô Gen P 
Published: March 2006

Abstract
Two triple-decker trinuclear porphinatoruthenium(II) complexes bridged with pyrazine (pyr) or 4,4′-bipyridine (4,4′-bpy), [{(CO)(oep)RuII}(μ-pyr){RuII(oep)}(μ-pyr){RuII(oep)(CO)}] (H2oep = octaethylporphine) and [{(CO)(tpp)RuII}(μ-4,4′-bpy){RuII(tpp)}(μ-4,4′-bpy){RuII(tpp)(CO)}] (H2tpp = tetraphenylporphine), have been prepared. The first trinuclear complex was electrochemically oxidized in four steps.
Oxidative Decarboxycondensation of Pyruvic Acid to Citraconic Anhydride
Authors: Ai Mamoru , Ohdan Kyoji 
Published: March 2006

Abstract
Citraconic anhydride (Methyl maleic anhydride) was found to be produced from pyruvic acid by an oxidative decarboxy condensation. The presence of oxygen is required to promote the reaction. The best catalyst is iron phosphate with a P/Fe atomic ratio of 1.2 and the optimum temperature is about 200 °C. The one-pass yield reaches 71 mol% at a pyruvic acid conversion of 98%. The main side-reaction is the formation of acetic acid and CO2 by oxidative C–C bond fission.
Rhodium-Catalyzed Carbonylation of 2-Alkynylbenzaldehyde under Water-Gas Shift Reaction Conditions: Formation of Novel Tricyclic Lactones
Authors: Sugioka Takashi , Zhang Shi-Wei , Morii Noritsugu , Joh Takashi , Takahashi Shigetoshi 
Published: March 2006

Abstract
Rhodium complexes catalyze carbonylation of 2-alkynylbenzaldehyde 1 under water-gas shift reaction conditions to give novel lactone 2 as a major product (up to 59% yield), the structure of which is a tricyclic ring system.
Layer-by-Layer Assembly of Aqueous Bilayer Membranes on Charged Surfaces
Authors: Ichinose Izumi , Fujiyoshi Kunitaka , Mizuki Suguru , Lvov Yuri , Kunitake Toyoki 
Published: March 2006

Abstract
Multilayer films of cationic bilayer membranes were prepared by means of alternate electrostatic adsorption with sodium poly(styrenesulfonate). Linear film growth was observed for at least 30 layers, as monitored by UV spectroscopy and quartz crystal microbalance (QCM). A regular multilayer film of cationic bilayer membrane with anionic bilayer membrane was similarly prepared.
Synthesis and Structure of a Novel 1,1′-Ferrocenediyldiplatinum Complex Having μ3(2S,N)-NCS Ligands
Authors: Onitsuka Kiyotaka , Yoshida Toshiya , Ozawa Fumiyuki , Sonogashira Kenkichi 
Published: March 2006

Abstract
The treatment of 1,1′-ferrocenediyldiplatinum complex {C5H4Pt(cod)NCS}2Fe (1) with 2 equivalents of PAr3 results in the formation of a novel dimeric μ3(2S,N)-NCS complex (2), of which structure has been determined by an X-ray diffraction analysis. Reaction of 1 with MeSSMe in the presence of triphenylphosphine gave a μ-thiolato complex (3).
Selective Electrochemical Dehalogenation of 2,4-Dichlorophenoxyacetic Acid in MeCN at Room Temperature
Authors: Tsyganok Andrey , Otsuka Kiyoshi , Yamanaka Ichiro , Plekhanov Vasilii , Kulikov Sergei 
Published: March 2006

Abstract
2,4-Dichlorophenoxyacetic acid (commercial pesticide 2,4-D) can be dechlorinated by electrochemical reduction at different carbon materials under mild conditions to give phenoxyacetic acid with 80% selectivity at 75% conversion of 2,4-D (current efficiency 10∼14%).
Effect of Butylation on Hydropyrolysis of Coal
Authors: Yoneyama Yoshiharu , Ando Shigehiro , Hamajima Keishi , Hagino Takaaki , Kato Tsutomu 
Published: March 2006

Abstract
Effect of introduction of butyl group into Yubari coal on hydropyrolysis was investigated. The strong promoting effect of butyl group on gasification of coal was observed at considerably low temperature, 500 °C: The yield of gas increased from 29 wt% of Yubari coal to 82 wt% of butylated Yubari coal.
The Influence of Serine Residue on the Poly(Ser-co-Lys) in HFIP / Water Solutions
Authors: Uchida Chieko , Wakamatsu Kaori , Oya Masanao 
Published: March 2006

Abstract
The conformational transition of poly(Ser:22-co-Lys:78) was studied in a mixed solution of 1,1,1,3,3,3,-hexafluoroisopropanol (HFIP) and water by circular dichroism (CD) spectroscopy. The structure of this polymer was α-helix in 100% HFIP solution and random coil in 100% water. The conformational transition was observed in 50 / 50 (HFIP : water).
First Synthesis of Selenophene 1,1-Dioxides
Authors: Nakayama Juzo , Matsui Tomoki , Sugihara Yoshiaki , Ishii Akihiko , Kumakura Shigekazu 
Published: March 2006

Abstract
Oxidation of four tetraarylselenophenes, 2,5-dimethyl-3,4-diphenylselenophene, 2,4-di-t-butylselenophene, and benzo[b]selenophene with dimethyldioxirane produces the corresponding selenophene 1,1-dioxides in high yields.
Enhanced Phenol Yield from Radiation-induced Decomposition of Chlorophenols in Deaerated Water by Addition of Cyclodextrin and Glucose
Authors: Huang Xixian , Arai Hidehiko , Matsuhasi Shinpei , Miyata Teijiro 
Published: March 2006

Abstract
The yield of phenol, identified as the main product, was enhanced remarkably by addition of cyclodextrins (CDs) and glucose. The effect was found to increase with cavity dimensions. It was suggested that inclusion accelerates hydrogen atom abstraction by the incorporated intermediate radicals.
Enhancement of Tolerance to the Humidity by Chemical Vapor Deposition of Silicon Alkoxide on Pd-Mordenite Catalyst in the Reaction of NO, Methane and Oxygen
Authors: Suzuki Masaki , Niwa Miki 
Published: March 2006

Abstract
In order to enhance the tolerance of Pd loaded on zeolite catalyst to the humidity, chemical vapor deposition of silicon alkoxide has been studied in the reduction of NO by methane in the presence of oxygen. The suppression of activity by the added water vapor was able to be reduced or almost disregarded by the deposition of silica.
Promotion Effect of Polymer-Immobilized Neodymium Ions on Catalytic Activity of Ultrafine Palladium Particles
Authors: Teranishi Toshiharu , Nakata Ken , Miyake Mikio , Toshima Naoki 
Published: March 2006

Abstract
Neodymium ions, which are placed close to ultrafine palladium particles by immobilization on water-soluble polymers, did promote the catalytic activity of the palladium particles for hydrogenation of acrylic acid. The acrylic acid is considered to be concentrated around ultrafine palladium particles by coordinating to neodymium ions bound to the protecting polymer.
Formation of High Rydberg He(np 3P: n = 5–12) Atoms by the Three-Body Collisional-Radiative Recombination of He+ in the Helium Flowing Afterglow
Authors: Nakamura Masafumi , Tsuji Masaharu , Tanaka Makoto , Nishimura Yukio 
Published: March 2006

Abstract
The He(np 3P → 2s 3S) emission lines from n = 5–12 have been observed in a He flowing afterglow. A comparison of the He-pressure dependence of the emission intensity with those predicted from the two-body [He+][e−] and three-body [He+][e−][He] and [He+][e−][e−] recombination processes indicated that the high Rydberg He(np 3P: n = 5–12) states are produced from the last three-body collisional-radiative (CR) recombination reaction.
Sulfur Containing Plasma Treatment for the Introduction of Thiol Groups onto Polyethylene Surfaces
Authors: Muguruma Hitoshi , Karube Isao , Saito Masao 
Published: March 2006

Abstract
We propose a novel method of introducing thiol groups onto polymer surfaces of e.g. polyethylene by plasma treatment with sulfur-containing organic compounds. X-ray photoelectron spectroscopic analyses of the plasma treated surfaces are presented.
Convenient Method for One-pot Preparation of 1,2-Diamines from Nitroolefins
Authors: Imagawa Kiyomi , Hata Eiichiro , Yamada Tohru , Mukaiyama Teruaki 
Published: March 2006

Abstract
Convenient method for preparation of 1,2-diamine from the corresponding nitroolefin was established by successive reactions of Michael addition of O-ethylhydroxylamine to nitroolefin and reduction with hydrogen. The present preparative method was applicable to various nitroolefins by one-pot procedure.
Mechanism of “Living” Radical Polymerization Mediated by Stable Nitroxyl Radicals
Authors: Fukuda Takeshi , Terauchi Tomoya 
Published: March 2006

Abstract
It is shown that in order for the “living” radical polymerization mediated by stable nitroxyl radical (SNR) to proceed successfully, a constant supply of initiating radicals (by, e.g., thermal initiation) to make up for the loss of polymer radicals due to irreversible bimolecular termination is essential in addition to the frequent reversible combination of polymer radical with SNR. The stationary rate of SNR-mediated polymerization is totally independent of the SNR concentration, being equal to the polymerization rate of the SNR-free system. Experimental evidence is presented showing that in the “living” polymerization of styrene, both of these requirements are met in fact.
Synthesis and Absolute Configuration of Optically Active Telluronium Salts
Authors: Shimizu Toshio , Urakubo Tomonari , Kamigata Nobumasa 
Published: March 2006

Abstract
Enantiomerically pure ethylmethylphenyltelluronium salts were isolated by optical resolution from a diastereomeric mixture of ethylmethylphenyltelluronium (1S)-(+)-camphor-10-sulfonate and subsequent anion exchange reactions, and the absolute configurations were determined based on the X-ray crystallographic analysis of a diastereomeric isomer.
Observation of Relative Population Change in the 3P0 and 3P2 States for Ar Glow Discharge Formation
Authors: Imura Kohei , Midorikawa Ryotarou , Kasai Toshio , Ohoyama Hiroshi , Che Dock-Chil 
Published: March 2006

Abstract
The formation ratio of the two spin-orbit states, 3P0 / 3P2, of the metastable argon, Ar*, was investigated by the glow discharge of a pulsed Ar supersonic beam. The 3P0 / 3P2 ratio decreased with the increase of the glow discharge potential Vg, by which the electron bombardment initiates the discharge. The observed Vg-dependence clearly showed an inverse behavior against Vg as compared with that in the conventional electron impact by low beam densities.
A Fluorescent Molecule-Recognition Sensor with a Protein as an Environmental Factor
Authors: Wang Juan , Nakamura Asao , Hamasaki Keita , Ikeda Hiroshi , Ikeda Tsukasa , Ueno Akihiko 
Published: March 2006

Abstract
Modified cyclodextrin (1), which has p-N,N-dimethylaminobenzoyl and biotin units as a fluorophore and a protein-binding site, respectively, exhibits promoted sensing ability for various organic compounds in aqueous solution in the presence of avidin.
Energy-Transfer Luminescence of Eu3+ and Tb3+ Complexed with Hexakis(4-carboxylatophenoxy)cyclotriphosphazene
Authors: Itaya Tomoyuki , Sasaki Yutaka , Tanigaki Teiichi , Matsumoto Akira , Inoue Kenzo 
Published: March 2006

Abstract
Hexakis(4-carboxylatophenoxy)cyclotriphosphazene, 1, forms a stable 1:2 1 - lanthanide ion (Eu3+ and Tb3+) complex. The fluorescence behavior and structure of the complexes have been discussed.
Regulations for the Product Distribution of the Oxidative Coupling of p-Cresol by Cyclodextrins
Authors: Asakura Kouichi , Watanabe Tomoya , Honda Eitoshi , Osanai Shuichi 
Published: March 2006

Abstract
The oxidative coupling of p-cresol in the aqueous solution was carried out in the presence of cyclodextrins. The production of the dimeric compound was preferentially prevented by α-cyclodextrin, while the trimerization was efficiently inhibited by γ-cyclodextrin. The different effects of these two cyclodextrins were explained by their different inclusion complex forming ability which depended on their cavity size.
Cathodic Coupling of Ketones with Ethoxyvinylsilanes. Useful Method for the Synthesis of 1,3-Diols
Authors: Kashimura Shigenori , Ishifune Manabu , Murai Yoshihiro , Shono Tatsuya 
Published: March 2006

Abstract
Cathodic coupling of ketones with ethoxydimethylvinylsilanes takes place regioselectively at the position β to ethoxydimethylsilyl group and affords 1-oxa-2-silacyclopentane derivatives as products which are easily transformed to 1,3-diols by oxidative desilylation.
Synthesis and Binding Property of Tunable Upper-Rim Calix[4]crowns
Authors: Paek Kyungsoo , Ihm Hyejae 
Published: March 2006

Abstract
Conformationally stable, tunable upper-rim calix[4]crowns 3 ∼ 7 were synthesized in good yields from dibromodihydroxycalix[4]arene hexyl ether 1 and the picrate extraction experiment showed their higher affinities for primary ammonium ions compared to those for alkali metal cations.
Photochromic Reaction of Spirobenzoselenazopyrans with Long-chains in Monolayers on Water Surface
Authors: Hama Hiroshi , Miyashita Akira , Yamaoka Kiyomi , Nakahara Hiroo 
Published: March 2006

Abstract
For long-chain derivatives of spirobenzoselenazopyran the photochromic reactions in monolayers on water surface have been investigated and effects of the molecular packing upon the reaction were clarified in comparison with the reactivities at different surface pressures as well as those in the solution.
Liquid Ionization Mass Spectrometry for Studies on Reactions between Formaldehyde Oligomers in Aqueous Solution and Alcohols
Authors: Saito Jun , Kaneko Takeo , Yang Peiming , Niwa Yoshio , Tsuchiya Masahiko 
Published: March 2006

Abstract
Reactions between poly(oxymethylene)glycol (POMG) in aqueous solution and methanol or ethanol were studied by liquid ionization mass spectrometry. Hemiformalization of POMG occurred soon after methanol addition to form monomethylethers of POMG and completed within 15 min. While hemiformalization by ethanol addition occurred slowly and it took time, about 30 min, before producing monoethylethers of POMG.
Stereocontrol by Lewis Acids in the Hetero-Diels-Alder Reaction Leading to a Key 1β-Methylcarbapenem Intermediate
Authors: Nishiuchi Masaki , Honda Keisuke , Nakai Takeshi 
Published: March 2006

Abstract
The Lewis acid-promoted versions of the cycloaddition reaction between methyl 2-(benzoylamino)methylene-3-oxobutanoate and methylketene diethyl acetal are shown to provide a 1β-methylcarbapenem intermediate with high diastereoselectivity and moderate enantioselectivity.
Catalytic Activity of Perovskite-type La0.8Sr0.2M1−2yCuyRuyO3 (M = Al, Mn, Fe, Co) for CO Oxidation and NO–CO Reactions. Influence of the Simultaneous Substitution of Cu and Ru
Authors: Teraoka Yasutake , Nii Hiroshi , Kagawa Shuichi , Jansson Kjell , Nygren Mats 
Published: March 2006

Abstract
The catalytic activity of perovskite-type La0.8Sr0.2M1−2yCuyRuyO3 (M = Al, Mn, Fe, Co) for CO Oxidation and NO–CO reactions was changed significantly by the simultaneous substitution of Cu and Ru for M at the B sites, and its effect was dependent on host M cations. The simultaneous Cu/Ru substitution into the inert host of La0.8Sr0.2AlO3 gave a very active catalyst at a substitution level (y-value) of 0.1.
The Intermediates in the Low-Temperature Photolysis of Bis(diazo)cyclohexatetraone in an Argon Matrix
Authors: Ohana Tsuguyori , Yabe Akira 
Published: March 2006

Abstract
The photolysis of bis(diazo)cyclohexanetetraone (1) was investigated in an argon matrix at 17 K. Two intermediates were formed by a consecutive decomposition of two diazo groups of 1, which were identified by UV-vis and IR spectroscopies.
Preparation of Finely Dispersed-Palladium Metal in Zeolite by High Frequency-Ultrasonic Irradiation
Authors: Tanabe Shuji , Matsumoto Hiroshige , Mizushima Takanori , Okitsu Kenji , Maeda Yasuaki 
Published: March 2006

Abstract
New technique to prepare finely dispersed metallic species in a zeolitic framework has been developed by a high frequency-ultrasonic (HFUS) irradiation. The parent Pd ions in the zeolite were reduced with isopropyl alcohol into carbon containing Pd metal during the irradiation. These species was observed by EXAFS analysis to be highly dispersed into small clusters consisted of less than several atoms in zeolitic crystal.
Three-fold Interpenetrating Diamondoid Frameworks with π–π Stacking of Alternate Coordinated and Uncoordinated Ligands: Crystal Structures of Copper(I) Coordination Compounds, [Cu(DMTPN)2]X(DMTPN)(thf) (DMTPN = 2,5-Dimethylterephthalonitrile; X = BF4,ClO4)
Authors: Kuroda-Sowa Takayoshi , Yamamoto Mikiko , Munakata Megumu , Seto Makiko , Maekawa Masahiko 
Published: March 2006

Abstract
Two novel coordination polymer compounds, [Cu(DMTPN)2]X(DMTPN)(thf) (DMTPN = 2,5-dimethylterephthalonitrile, X = BF4 (l) and ClO4 (2)) are prepared and characterized by single crystal X-ray analysis; both are isostructural and have three-fold interpenetrated diamondoid structure with π–π stacking column of alternate coordinated and uncoordinated DMTPN.
CH/π Interaction in Linkage Isomers of Bis(2,2′-bipyridine)ruthenium(II) Complexes with Pyrimidine-2-thione and Related Ligands
Authors: Yamanari Kazuaki , Nozaki Tsuyoshi , Fuyuhiro Akira , Kaizaki Sumio 
Published: March 2006

Abstract
Ruthenium(II) complexes containing nine pyrimidine-2-thione [Ru(L-N,S)(bpy)2]+ (HL = pyrimidine-2-thione; bpy = 2,2′-bipyridine) are prepared and characterized. Two linkage isomers exist for most of the complexes with unsymmetrical ligands. The isomeric ratios are interpreted by CH/π attractive interaction between the 4- or 6-alkyl group of the thione ligands and the π-system of bpy.
Crystal Structure of 9-(Hexadecyl)imino-4,5-diazafluorene
Authors: Tang Ruikang , Qian Xiangping , Tai Zihou , Gu Jianming 
Published: March 2006

Abstract
The molecular and crystal structures of a new bilayer-forming amphiphilic ligand containing π-conjugated diazafluorenone Schiff base as the head group, 9-(hexadecyl)imino-4,5-diazafluorene (C27H39N3), were determined by the X-ray diffraction method.
Photochromic Properties of Thermally Irreversible 6-Aryloxy-5,12-naphthacenequinones
Authors: Yokoyama Yasushi , Fukui Shin-ya , Yokoyama Yayoi 
Published: March 2006

Abstract
Spectroscopic and photochromic properties of five 6-(4-substituted)phenoxy-5,12-naphthacenequinones were studied. The quantum yields of fading with the visible light were first reported. The electron-donating substituents on the phenyl ring decreased the fading quantum yields of both UV- and visible-light irradiation. Absorption spectra were merely influenced by the substituents.
Isolation and Characterization of Zirconacyclopentane
Authors: Takahashi Tamotsu , Fischer Reinald , Xi Zhenfeng , Nakajima Kiyohiko 
Published: March 2006

Abstract
Zirconacyclopentane (t-Bu2C5H3)2Zr(C4H8) was isolated as stable yellow crystals and its structure was determined by X-ray analysis.