bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modulation of Flat-band Potential and Increase in Photovoltage for n-Si Electrodes by Formation of Halogen Atom Terminated Surface Bonds
Authors: Fujitani Morio , Hinogami Reiko , Jia J G , Ishida Masaki , Morisawa Kazuhiko , Yae Shinji , Nakato Yoshihiro 
Published: November 2004

Abstract
The flat-band potential (UFB) of n-Si electrodes in concentrated hydrogen halide (HX) solutions, as determined from Mott-Schottky plots and the onset potential of photocurrent, shifts largely toward the negative with the decreasing electronegativity of halogen atoms. XPS studies have shown the presence of halogen atoms on the Si electrodes which were beforehand immersed in the HX solutions. The shift in UFB can be explained as due to changes in surface potential by formation of Si-halogen surface termination bonds.
Efficient Quenching of the Fluorescence of Aromatic Guests by β-Cyclodextrin-Tethered Viologens via Inclusion Complexation
Authors: Park Joon Woo , Park Sang Hee , Lee Bi Ah , Lee Soo-Yeon 
Published: November 2004

Abstract
The fluorescence quenching of 3-(2-naphthoxyl)-1-aminopropane (1), 3-(1-naphthoxyl)-1-aminopropane (2), and 3-(2-dibenzofuranoxyl)-1-aminopropane (3) by β-cyclodextrin (β-CD)-bound viologens is much more efficient than that by dimethyl viologen. The binding studies of the guests with β-CD and lifetime measurements of the quenching indicated that this is due to the static quenching in complexes formed by inclusion of the aromatic guests into β-CD moiety of the β-CD- viologens.
Aerobic Oxidation of Cyclohexane Catalyzed by Fe(III)(5,10,15,20-tetrakis(pentafluorophenyl)porphyrin)Cl in Sub- and Super-Critical CO2
Authors: Wu Xiao-Wen , Oshima Yoshito , Koda Seiichiro 
Published: November 2004

Abstract
Aerobic oxidation of cyclohexane to yield cyclohexanol and cyclohexanone in the presence of a Fe-porphyrin catalyst bearing meso-pentafluorophenyl group and acetaldehyde has been efficiently enhanced in pressurized CO2. The reaction rate takes a maximum value in the neighborhood of critical pressure.
Structural Reconstruction by Selective Extraction of Specific Species: Non-reductive Change from H0.3MoO3 to H1.5MoO3
Authors: Eda Kazuo , Matsuura Naomi , Sotani Noriyuki 
Published: November 2004

Abstract
Under non-reductive condition, H1.5MoO3 of higher reduction degree was found to be formed from H0.3MoO3. This phenomenon resulted from selective extraction of Mo6+ species.
Bilayer Formation in Ethanol from Dialkylammonium Amphiphile Appended with Nitroaniline Moiety
Authors: Kimizuka Nobuo , Tokuhiro Maki , Miyauchi Haruko , Wakiyama Tatsuo , Kunitake Toyoki 
Published: November 2004

Abstract
A double-chain ammonium amphiphile with the p-nitroaniline moiety formed ordered bilayer assemblies in ethanol media. p-Toluenesulfonate counterion effectively stabilized the bilayer. Excitonic interaction among highly oriented chromophores at the bilayer surface was probed by absorption and circular dichroism spectra.
Radical Type Catalytic Oxidation of Butane at Low Temperatures over in-situ Prepared Silica Species
Authors: Satsuma Atsushi , Sugiyama Naruaki , Kamiya Yuichi , Hattori Tadashi 
Published: November 2004

Abstract
Silica species prepared by in-situ method using silicon alkoxide as precursor were found to be active for radical type oxidation of butane at low temperatures, i.e., below 650 K.
Dicyanodiaryl-p-quinodimethanes: An Efficient Synthesis Using a New Dilithium Reagent and Their Solvent-Dependent Properties
Authors: Kawase Takeshi , Wakabayashi Masaki , Takahashi Chizuko , Oda Masaji 
Published: November 2004

Abstract
A series of 7,7-dicyano-8,8-diaryl-p-quinodimethane are readily prepared by the reaction of 4-lithiophenyldicyanomethyllithium with diaryl ketones; the 8-(4-dimethylaminophenyl) compounds thus obtained show solvent-dependent absorption spectra and bond rotation of the exocyclic double bonds and form a head-to-tail dimeric structure in the crystal.
Hexacyanotriquinarenemethane Dianion
Authors: Kawase Takeshi , Wakabayashi Masaki , Oda Masaji 
Published: November 2004

Abstract
Hexacyanotriquinarenemethane dianion is obtained as a stable, highly teterapolar substance in one step by the reaction of 4-lithiophenyldicyanomethyllithium with ethyl chloroformate. The acidity of its conjugate acid was determined to be pKa1 = ca. 2.5 and pKa2 = 3.0.
Syntheses and Spin Trappings of 3-Hydroxymethyl-5,5-dimethyl-1-pyrroline N-oxide and 3-(3-Hydroxypropyl)-5,5-dimethyl-1-pyrroline N-Oxide
Authors: Sato Rikiya , Ito Kazuyoshi , Igarashi Hayato , Uejima Mitsugu , Nakahashi Kenichi , Morioka Junko , Takeishi Makoto 
Published: November 2004

Abstract
New nitrones of 5,5-dimethyl-1-pyrroline N-oxide (DMPO)-type, 3-hydroxymethyl-5,5-dimethyl-1-pyrroline N-oxide (3HM-DMPO) and 3-(3-hydroxypropyl)-5,5-dimethyl-1-pyrroline N-oxide (3HP-DMPO), were synthesized and tested for the ability in radical trapping of oxygen-centered radicals. 3HM-DMPO trapped superoxide but did not hydroxyl radicals, whereas 3HP-DMPO served as a trap for both radicals.
14N NMR Spectra Sensitively Reflect Surface Curvature and Segmental Motion of Hydrophilic Headgroups in Lipid Bilayers and Micelles
Authors: Okamura Emiko , Wakai Chihiro , Matubayasi Nobuyuki , Nakahara Masaru 
Published: November 2004

Abstract
To study the surface curvature dependence of the dynamical structure of the headgroups of phospholipids forming bilayers and micelles, 14N NMR spectra were measured for liposomes of phosphatidylcholine and for micelles of lysophosphatidylcholine. Choline 14N NMR signals were observed for the micelles and small unilamellar vesicles, which involve high surface curvatures. The signals vanished, on the other hand, when the diameter was increased from 55 to 100 nm in unilamellar vesicles.
Compressibility and Volume Changes of Lysozyme Due to Guanidine Hydrochloride Denaturation
Authors: Kamiyama Tadashi , Gekko Kunihiko 
Published: November 2004

Abstract
The apparent specific volume and adiabatic compressibility of lysozyme largely decreased upon guanidine hydrochloride denaturation. These results demonstrate that a large amount of amino acid residues exposes accompanying an increase in hydration and a decrease in the internal cavity. Both parameters deviated from the two-state transition curves, suggesting noncooperative disruption of the compactness and the secondary structure.
A Diradical Bridging Ligand with a Triplet Ground State
Authors: Oshio Hiroki , Umeno Makoto , Fukushi Toru , Ito Tasuku 
Published: November 2004

Abstract
A diradical of nitronyl nitroxide, 2-phenyl-4,6-bis(1′-oxyl-3′oxido-4′,4′5′,5′-tetramethyl-4′,5′-dihydro-1′H-imidazole-2′-yl)pyrimidine, was prepared and characterized to have a triplet ground state.
On the Origin of cis-Effect in 1,2-Difluoroethene
Authors: Yamamoto Takashi , Tomoda Shuji 
Published: November 2004

Abstract
The origin of cis-effect in 1,2-difluoroethene has been identified by quantitative analysis of electron delocalization using natural bond orbital analysis at the HF/6-311++G(3df, 3pd) level. It was concluded that both the delocalization of halogen lone-pair electrons (LP effect) and the antiperiplanar effects (AP effect) between vicinal antiperiplanar bonds are most likely to be the major sources of cis-effect with the latter effect being the more predominant.
Magnetic Ordering of 5,10,15,20-Tetrakis[4′-(trifluoromethyl)phenyl]-porphyrinatomanganese(III) Tetracyanoethenide with a 6.0 K Tc
Authors: Sugiura Ken-ichi , Mikami Shinji , Tanaka Takanori , Sawada Masami , Manson Jamie L , Miller Joel S , Sakata Yoshiteru 
Published: November 2004

Abstract
An elecron-transfer complex of a substituted manganese porphyrin with tetracyanoethylene was prepared. Crystal structure analysis revealed that there exists quasi-two dimensional interaction in the complex, which was shown to be a magnet with Tc of 6.0 K.
Lewis Acid Trifluoroboron Coordination to trans-Dioxorhenium(V) Moiety: Structural and Spectroscopic Characterization of trans-[ReV(O)(OBF3)(1-MeIm)4](BF4)(1-MeIm=1-Methylimidazole)
Authors: Abe Masaaki , Mikami Tsuyoshi , Sugimoto Hideki , Nagasawa Akira , Sasaki Yoichi 
Published: November 2004

Abstract
A mononuclear rhenium(V) complex having a BF3 moiety on one of the two oxo ligands, trans-[ReV(O)(OBF3)(1-MeIm)4](BF4)(1-MeIm = 1-methylimidazole), was isolated and characterized. Two one-electron redox waves were observed in 0.1 M (n-C4H9)4NPF6/CH3CN (M = mol dm−3).
Base Promoted Preparation of Alkenylsilanols from Allylsilanes
Authors: Akiyama Takahiko , Imazeki Shigeaki 
Published: November 2004

Abstract
On treatment of allyl-t-butyldiphenylsilane with t-BuOK and 18-Crown-6 in DMSO at room temperature, isomerization of the olefinic double bond and subsequent substitution of phenyl group with hydroxy group took place smoothly to afford alkenylsilanol derivatives in good yields.
Open Dimer Participation in Chelation Controlled Addition of Methyllithium Dimer to α-and β-Alkoxy Aldehydes
Authors: Mori Seiji , Kim Byeang Hyean , Nakamura Masaharu , Nakamura Eiichi 
Published: November 2004

Abstract
The chelation controlled additions of a MeLi dimer to alkoxy carbonyl compounds occur through an open dimer cluster, in which only one lithium atom participates in the chelate formation and the other acts as an anchor of the methyl nucleophile to be delivered to the carbonyl group. Solvation of a lithium atom with a water molecule does not change much the structure of the transition state.
Bifunctional Receptor. Rate-acceleration of Oxidative Decarboxylation of Pyruvate by Thymine-Thiazolium and Zn2+ in the Presence of a Melamine Derivative Bearing α-Bipyridine Moiety in Chloroform-Acetonitrile
Authors: Utsumi Katsuhiro , Nishihara Yasuaki , Hoshino Kazuhiko , Kondo Shin-ichi , Nabeshima Tatsuya , Yano Yumihiko 
Published: November 2004

Abstract
Rates of oxidative decarboxylation of pyruvate by thymine-thiazolium were found to be accelerated by Zn2+ in the presence of a melamine derivative bearing an α-bipyridine moiety in CHCl3-MeCN (9 : 1 v/v) under anaerobic conditions.
Efficient Electroluminescence from Tris(4-methyl-8-quinolinolato)aluminum(III)
Authors: Kido Junji , Iizumi Yasuhiro 
Published: November 2004

Abstract
A green-light-emitting aluminum complex, tris(4-methyl-8-quinolinolato)Al (III) (Almq3), was synthesized and used as an emitter material in organic electroluminescent (EL) devices. The device structure of glass substrate / indium-tin oxide / tetraphenyldiamine derivative / Almq3 / Mg:Ag was employed. The EL device exhibited efficient green light originating from Almq3 with a maximum luminance of 26000 cd/m2 at 14 volt. The maximum external quantum efficiency was 2.5% photons / electron.
Synthesis of a Molybdenum Cluster Complex [Mo12(μ3-S)14(μ4-S)2(PEt3)10] with Chevrel Phase Type Intercluster Bondings
Authors: Amari Shingo , Imoto Hideo , Saito Taro 
Published: November 2004

Abstract
The reaction of [Mo6S8(PEt3)6] with elemental sulfur in toluene at reflux temperature formed a dodecanuclear cluster complex [Mo12S16(PEt3)10] with the Chevrel phase type intercluster bonding.
Selective Uptake of Copper(II) and Zinc(II) Ions Using Liposomes without Ionophores
Authors: Kamidate Tamio , Yamaguchi Junichi , Suita Takahiro , Tani Hirofumi , Watanabe Hiroto 
Published: November 2004

Abstract
The multilamellar vesicles (MLVs) without ionophores were applied to the separation media of Cu2+ and Zn2+. Mn2+, Fe2+, Co2+ and Ni2+ were impermeable into the MLVs. The uptake rate and efficiency of Cu2+ were dependent on the charge-type of the MLVs surface, while the effect of copper salts on the uptake rate and efficiency was little observed.
Exalted Resonance Effect in the Aryl-Assisted Solvolyses of 2-Aryl-2-(trifluoromethyl)ethyl m-Nitrobenzenesulfonates
Authors: Okamura Mutsuo , Hazama Ken , Ohta Mie , Kato Keiko , Horaguchi Takaaki , Ohno Atsuyoshi 
Published: November 2004

Abstract
The substituent effects on solvolysis of 2-aryl-2-(trifluoromethyl)ethyl m-nitrobenzenesulfonates, in acetic acid and in 80% aqueous trifluoroethanol, were analyzed by Yukawa-Tsuno equation. The resonance demands (r = 0.77 in acetic acid) were larger than that of standard aryl-assisted solvolysis by 0.2. This enlargement should depend on a destabilization of aryl-assisted transition-state by an electron-withdrawing trifluoromethyl group.
Inverted Bond and Its Effect on the Strains of [1.1.1]Propellane Frameworks
Authors: Inagaki Satoshi , Yamamoto Tetsushi , Ohashi Shigenori 
Published: November 2004

Abstract
The delocalization of σ electrons from a normal bond to a geminal “inverted” bond was shown to be strongly bonding due to the orbital phase property. The bonding property of the geminal delocalization was predicted to increase with bond inversion. The central bond between the bridgehead atoms in the [1.1.1]propellane frameworks (1) is inverted to relax the ring strains as the row of the elements is high in the periodical table. The strain decreases in the order of 1a (M = C) &gt; 1b (M = Si) &gt; 1c (M = Ge) &gt; 1d (M = Sn).
Hydrogen Abstraction from Transition Metal Hydrides by Gold Alkoxides Giving Gold-Containing Heterodinuclear Complexes
Authors: Usui Yoko , Hirano Masafumi , Fukuoka Atsushi , Komiya Sanshiro 
Published: November 2004

Abstract
Gold(I) alkoxides, Au(OR)L (L = PPh3, PCy3; R = CH(CF3)2, CH2CF3, Ph) smoothly abstract a hydrogen from transition metal hydrides (MH = CoH(CO)4, MoHCp(CO)3, WHCp(CO)3, MnH(CO)5, WHCp(CO)2(PPh3)) to give corresponding dinuclear complexes LAu-M with liberation of equimolar amount of ROH. Similar reactions of gold(III) alkoxides, cis-AuMe2-(OR)L also give dinuclear intermediates LMe2Au-M, from which preferential reductive elimination of ethane takes place when M is more electron withdrawing.
Synthesis of a Hexagonal Mesostructured Aluminophosphate
Authors: Kimura Tatsuo , Sugahara Yoshiyuki , Kuroda Kazuyuki 
Published: November 2004

Abstract
A hexagonal mesostructured aluminophosphate was successfully synthesized from the mixture of Al(OiPr)3, 85% H3PO4, tetramethylammonium hydroxide, hexadecyltrimethylammonium chloride, and water.
Rh/One-atomic Layer GeO2/SiO2 as a New Catalyst for Ethyl Acetate Hydrogenation at a Low Pressure
Authors: Okumura Kazu , Asakura Kiyotaka , Iwasawa Yasuhiro 
Published: November 2004

Abstract
A new Rh/one-atomic layer GeO2/SiO2 catalyst was prepared by supporting Rh6(CO)16 precursor on the one-atomic layer GeO2/SiO2 followed by reduction at 423-523 K. The obtained catalyst was active and selective for conversion of ethyl acetate to ethanol by H2 under mild reaction conditions, whereas Rh/bulk-GeO2 and Rh/SiO2 were inactive for this reaction. Rh carbonyl cluster, Rh metal, and RhGe alloy were formed on the one-atomic layer GeO2/SiO2 depending on the pre-reduction temperature. A combination of metallic Rh particles and one-atomic layer GeO2 was most active for the ethanol production.
Supported K-salts as a New Solid Base Catalyst
Authors: Yamaguchi Tsutomu , Zhu J-H , Wang Y , Komatsu Masa-aki , Ookawa Masashi 
Published: November 2004

Abstract
A highly basic solid catalyst was obtained by dispersing potassium salts such as KNO3, K2CO3 over alumina at the surface density of 10-15×1018 K+ ions m−2 and activating them at 773-873 K in vacuo; the activity for the double bond isomerization of cis-but-2-ene of thus obtained catalysts was one order of magnitude higher than that of MgO, a typical solid superbase.
CO2 Hydration by Mimic Zinc Complex for Active Site of Carbonic Anhydrase
Authors: Nakata Kou , Uddin M Khabir , Ogawa Kazuya , Ichikawa Kazuhiko 
Published: November 2004

Abstract
The deprotonation of the zinc-bound water and the zinc-bound bicarbonate which arose from hydration of CO2 have been simulated in vitro according to the proposed mechanism for carbonic anhydrase, with the model complex of its own active site, [LZn(OH2)]2+, where L = tris(2-benzimidazolylmethyl)amine.
Mechanism of Cis-to-Trans One Way Isomerization of Stilbene and Formation of Its Stable Dimer Cation Radicals in Zeolite Cavities
Authors: Kojima Masanobu , Takeya Haruhiko , Kuriyama Yasunao , Oishi Shigero 
Published: November 2004

Abstract
Cis-to-trans one way isomerization of stilbene in the first case catalyzed by proton, and then, secondly through electron transfer, occurred in acidic zaolites without light, suggesting that dimer cation radicals with charge transfer interaction between trans-stillbene and its cation radical may be formed in H-ZSM-5, whereas 1,4-dimer cation radicals of stilbene may be produced in H-mordenite.
Promotion in Activity and Stability of Nickel-Magnesia Solid Solution Catalyst by Structural Rearrangement via Hydration for Reforming of CH4 with CO2
Authors: Chen Yang-guang , Tomishige Keiichi , Fujimoto Kaoru 
Published: November 2004

Abstract
It was found that the water treatment of Ni0.03Mg0.97O solid solution catalyst promotes the catalytic activity and stability for CO2 reforming of CH4 and that this promoting effect is attributed to the structural rearrangement of solid solution via the formation of nickel and magnesium hydroxides.
Generation of Patterned Color Images in Polymer Film with Photogenerated Base
Authors: Kim Jong-Man , Chang Tae-Eun , Park Ran Hee , Kim Dong Jin , Han Dong Keun , Ahn Kwang-Duk 
Published: November 2004

Abstract
Patterned color images in the polymer film have been prepared using photolabile protecting groups. Irradiation of a polymer film with 360-nm UV through a photomask followed by chemisorption of organic dyes afforded patterned color images in the polymer film.
Fluorescence Sensing Behavior of Thin-films of Benzofuranoquinol Clathrate Host upon Exposure to Various Gaseous Amines
Authors: Yoshida Katsuhira , Ooyama Yousuke , Tanikawa Sachiko , Watanabe Shigeru 
Published: November 2004

Abstract
The benzofuranoquinol clathrate host exhibits color and fluorescence changes upon exposure to various gaseous amines both in the crystalline state and in the thin-film state. The decrease of long-wavelength absorption and the dramatic fluorescence enhancement with blue-shift of emission maximum depending on the enclathrated amine molecules were observed. The response time for the optical sensing was greatly improved by using the host in the thin-film state.
Chiral Recognition of Diketopiperazines with Xanthone Receptors
Authors: Martín Mercedes , Raposo César , Oliva Ana I , Simón Luis , Caballero Cruz , Morán Joaquín R 
Published: November 2004

Abstract
Good chiral recognition of diketopiperazines has been obtained with a receptor that combines a xanthone with a phosphonamide as an asymmetric group. Silicagel plates impregnated with an enantiomerically pure diketopiperazine provide an easy and effective way to resolve the receptor racemic mixture. The strong (R,R. R) complex yields a spot with a larger Rf, probably because the complex is less polar than the free receptor.
Soluble Copolymers of p-Phenylene and m-Phenylene. Their Basic Properties
Authors: Yamamoto Takakazu , Wu Biyao , Choi Byoung-Ki , Kubota Kenji 
Published: November 2004

Abstract
Copolymers of p-phenylene and m-phenylene are soluble in various solvents when the p-phenylene : m-phenylene ratio is in a range of about 30:70 through 10:90. The copolymers take a random coil-like structure in solutions as revealed by light scattering analysis.
HI-Mediated Cyclization of o-Alkynylstyrenes
Authors: Saito Shinichi , Homma Miyako , Gevorgyan Valdimir , Yamamoto Yoshinori 
Published: November 2004

Abstract
o-Alkynylstyrenes cyclized in the presence of hydroiodic acid to yield polysubstituted iodoindenes. This reaction provides an efficient synthetic method for the preparation of polysubstituted iodoindenes.
Optical Resolution of Thermodynamically Stabilized Selenoxides by 8-(Dimethylamino)-1-naphthyl Group
Authors: Taka Hideo , Matsumoto Akikuni , Shimizu Toshio , Kamigata Nobumasa 
Published: November 2004

Abstract
Optically pure selenoxides, stabilized by intramolecular coordination of amino group of 8-(dimethylamino)-1-naphthyl substituent to the selenium atom, were isolated by chromatographic resolution using an optically active column. Stereochemistry of the optically active selenoxides was also examined.
Triplet Sensitized Laser Flash Photolysis of BNN3, Caged Nitric Oxide
Authors: Yoshida Morikatsu , Ikegami Masashi , Namiki Shigeyuki , Arai Tatsuo , Fujimori Ken 
Published: November 2004

Abstract
The excited triplet state of N,N′-dimethyl-N,N′-dinitroso-p-phenylenediamine (BNN3, λmax: 299 nm), caged nitric oxide (ET: 230 kJ mol−1), was found to readily undergo N–N bond homolysis to release NO. This suggests that by covalently binding a triplet sensitizing chromophore, e.g., biacetyl, to BNN3 N-methyl group, its NO photoreleasing light can be switched from UV to visible, less cytotoxic light, such as 425 nm.
Successive Antiferromagnetic and Superconducting Transitions in an Organic Metal, κ-(BETS)2FeCl4
Authors: Otsuka Takeo , Kobayashi Akiko , Miyamoto Yasuhisa , Kiuchi Junji , Wada Nobuo , Ojima Emiko , Fujiwara Hideki , Kobayashi Hayao 
Published: November 2004

Abstract
The ac magnetic measurements on an organic metal, κ-(BETS)2FeCl4 down to 60 mK revealed successive antiferromagnetic and superconducting phase transitions at about 0.65 K (≈TN) and 0.1 K (≈TC), respectively. These transitions correspond to the similar transitions in the Br-analogue, κ-(BETS)2FeBr4 but the transition temperatures of FeCl4 system are significantly lower than those of FeBr4 system (TN = 2.5 K; TC = 1.1 K).
An EPR Study on Nitrogen Monoxide Adsorbed on Sodium Ion-Exchanged A-type Zeolite
Authors: Yahiro Hidenori , Lund Anders , Benetis Nikolas P , Shiotani Masaru 
Published: November 2004

Abstract
Temperature-dependent EPR spectra of nitrogen monoxide (NO) introduced into sodium ion-exchanged A-type (Na-A) zeolite demonstrated that two types of NO monoradical and one NO-NO radical pair were formed on the zeolites and that the thermally less stable NO monoradical was converted into the thermally stable one upon warming from 30 K to 100 K.
A Mild and Chemoselective Dealkylation of Alkyl Aryl Ethers by Cerium(III) Chloride-NaI
Authors: Yadav J S , Reddy B V Subba , Madan Ch , Hashim S Riaz 
Published: November 2004

Abstract
The alkoxy groups present ortho to carbonyl group in alkoxybenzaldehydes are selectively deprotected in high yields leaving other alkoxy groups unaffected by cerium(III) chloride–NaI in refluxing acetonitrile under neutral reaction conditions.
Mesomorphic Properties of Oligosilanes with Phenyl End Groups
Authors: Yatabe Tetsuo , Minami Nobutsugu , Okumoto Hajime , Ueno Katsuhiko 
Published: November 2004

Abstract
Oligosilanes with phenyl end groups, Ph(SiMe2)nPh where n = 10, 11, 12 and 13, were synthesized and their thermal and structural properties were studied. Dodecamer and tridecamer possessed mesophases showing the interdigitated structure in the range of 126–139 and 127–155 °C, respectively. In the mesophase, the silicon chains adopted the all-trans conformation.
Mössbauer Study of Matrix Isolated Iron Fluorides Produced by a Reaction of Laser-Evaporated Iron Atom and Sulfur Hexafluoride
Authors: Yamada Yasuhiro , Katsumata Keiichi 
Published: November 2004

Abstract
The reaction-products of laser-evaporated iron atoms with sulfur hexafluoride SF6 were isolated in a low-temperature matrix and their Mössbauer spectra obtained. Fe2F6 molecules were produced in a pure SF6 matrix, whereas FeF3 and Fe2F4 were also produced in a diluted SF6/Ar matrix. A molecular orbital calculation supports the assignment of the species.
Shifts of Core-level Electron Binding Energies for SrBi2Ta2O9 Nano-particles
Authors: Takada Syozo , Kohiki Shigemi , Adachi Yuji , Shimizu Akihiko , Takahashi Seiji , Mitome Masanori , Oku Masaoki 
Published: November 2004

Abstract
The electron binding energies of Ta 4d5/2 and Sr 3p3/2 levels of SrBi2Ta2O9 nano-particles were larger by 1.2 eV than these of bulk SrBi2Ta2O9, while the Bi 4d5/2 electron binding energy was smaller by 1.4 eV than the bulk. Charge distribution in the unit cell of the nano-particles differs from that of the bulk.