bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ferromagnetic Spin Coupling of tert-Butylnitroxide Diradicals through a Conjugated Oligo(1,2-phenylenevinylene)-Coupler
Authors: Kaneko Takashi , Toriu Shuichi , Tsuchida Eishun , Nishide Hiroyuki , Yamaki Daisuke , Maruta Goro , Yamaguchi Kizashi 
Published: March 2006

Abstract
Ferromagnetic spin coupling of the tert-butylnitroxide diradicals connected to the oligo(1,2-phenylenevinylene)-skeleton was studied to relate with their π-conjugated electronic structure. The spin coupling constant (J) determined from their magnetic susceptibility increased with the degree of oligomerization in the conjugated skeleton and was reduced in response to the conjugated but spacing phenylenevinylene unit. These 2J values qualitatively agreed with the semiempirically calculated ones.
Synthesis and Structure of Novel Thiolato-, Selenolato- or Tellurolato-Bridged 1,1′-Ferrocenediyldiplatinum Complexes
Authors: Onitsuka Kiyotaka , Yoshida Toshiya , Ichimura Akio , Adachi Tomohiro , Yoshida Toshikatsu , Sonogashira Kenkichi 
Published: March 2006

Abstract
Reaction of 1,1′-ferrocenediyldiplatinum complex with disulfide, diselenide or ditelluride results in the formation of thiolato-, selenolato- or tellurolato-bridged 1,1′-ferrocenediyldiplatinum complexes. The structure of a μ-thiolato complex was determined by an X-ray crystallography. The μ-thiolato complex was also prepared by the treatment of the μ-hydroxo 1,1′-ferrocenediyldiplatinum complex with thiophenol.
Preparation and Property of Langmuir-Blodgett Film of N,N′-ω-p-Xylene-bis-[stearyldimethylammonium chloride]
Authors: Takahashi Masashi , Tajima Kazuo , Takaoka Kyo , Kobayashi Koichi 
Published: March 2006

Abstract
The fabrication of Langmuir-Blodgett (LB) film of N,N′-ω-p-xylene-bis-[stearyldimethylammonium chloride] (XSAC) and the adsorption of α-naphthol orange (NO) molecules onto these XSAC LB films were investigated by FTIR and UV-visible spectroscopies. It was found that the adsorption of NO molecules onto the XSAC LB film took place selectively at the molar fraction of XSAC, 0.25 and NO molecules on the LB film were almost oriented parallel to the substrate surface.
Convenient Synthesis of (+)-Decarestrictine L
Authors: Nokami Junzo , Taniguchi Takuya , Ogawa Yôzo 
Published: March 2006

Abstract
(+)-Decarestrictine L was prepared via intramolecular 1,4-addition of the oxy-anion, derived from trialkylsilyl ether with Bu4NF, to the internal γ-hydroxy enone functionality, formed by the reaction of p-chlorobenzenesulfinylpropan-2-one with R-5-t-butyldimethylsilyloxyhexanal.
Ionic Conductivity of Ln10(SiO4)6O3 (Ln = La, Nd, Sm, Gd and Dy)
Authors: Nakayama Susumu , Aono Hiromichi , Sadaoka Yoshihiko 
Published: March 2006

Abstract
Electrical properties were investigated for lanthanoid-silicates of Ln10(SiO4)6O3(Ln = La, Nd, Sm, Gd and Nd). The conductivity at 773 K was 2.3 × 104 S cm−1 for Nd10(SiO4)6O3. The sole carrier is the O2− ion, which was determined using an O2 gas concentration cell.
A Direct Evidence for Trivalent Ion Conduction in Solids
Authors: Imanaka Nobuhito , Kobayashi Yasuyuki , Adachi Gin-ya 
Published: March 2006

Abstract
In order to realize a higher valency ion conduction in solids, the Sc2(WO4)3 material which possesses a larger tunnel size for ion migration was selected to reduce the electrostatic interaction and the single crystals of Sc2(WO4)3 were grown to eliminate grain boundary effects found in polycrystalline state. By both the alternative and direct current measurements, a direct evidence of Sc3+ trivalent ion migration in single crystal Sc2(WO4)3 has been successfully demonstrated.
A Slab-Optical-Waveguide Absorption Spectroscopy of Langmuir-Blodgett Films with a White Light Excitation Source
Authors: Kato Kenji , Takatsu Akiko , Matsuda Naoki , Azumi Reiko , Matsumoto Mutsuyoshi 
Published: March 2006

Abstract
A novel slab optical waveguide (SOWG) technique with a white light excitation source was applied to the spectroscopy of LB monolayer samples. Absorption spectra of a Cu-porphyrin complex in LB films at concentrations of 0.1–0.5 monolayers were observed in the wavelength range of 380 to 650 nm. Polarized spectra giving information on the molecular orientation in the ordered thin films were also measured.
Synthesis, Structure, and Complexation Properties of Monoazacryptands
Authors: Nakatsuji Yohji , Sunagawa Takuya , Masuyama Araki , Kida Toshiyuki , Ikeda Isao 
Published: March 2006

Abstract
New types of monoazacryptands were prepared and their complexation properties towards alkali metal cations were examined using the solvent extraction method, UV spectroscopy, X-ray crystal analysis, and liquid membrane transport. A lipophilic macrobicyclic polyether consisting of two 18-crown-6 rings and one 20-crown-6 ring was found to be a highly selective potassium ion carrier through a bulk liquid membrane by pH control.
The Photocatalytic Isomerization of 2-Butenes on ZrO2 Catalyst with Low Coordinated Surface Sites
Authors: Moon Sang-Chul , Hieida Takeshi , Yamashita Hiromi , Anpo Masakazu 
Published: March 2006

Abstract
The photocatalyzed isomerization of cis-2-butene has been investigated on active ZrO2 catalysts which exhibited a typical photoluminescence associated with low coordinated surface sites. A geometrical isomerization reaction occurred predominantly and with high efficiency under UV-irradiation of the ZrO2 catalyst in the presence of cis-2-butene. A good parallel between the photoluminescence intensity and the rate of photocatalytic activity clearly indicated that the low coordinated surface sites play a significant role in the photocatalytic isomerization of cis-2-butene on the active ZrO2 catalysts.
Acid-promoted C1-C2 Bond Fission and Subsequent 1,5-Sulfenyl Shift of 1-Acceptor-1-sulfenyl-substituted 2-Vinylcyclopropanes. Formation of 6-Sulfenyl-α,β-γ,δ-unsaturated Carboxylic Esters and Nitriles
Authors: Kataoka Tadashi , Matsumoto Harutoshi , Iwama Tetsuo , Shimizu Hiroshi 
Published: March 2006

Abstract
1-Acceptor-1-sulfenyl-substituted 2-vinylcyclopropanes were isomerized to 6-sulfenyl-α,β-γ,δ-unsaturated carboxylic esters and nitriles via a C1-C2 bond fission and via a 1,5-sulfenyl shift using an acid catalyst.
Preparation of Alkyl Silyl Acetals from Carboxylic Esters with tert-Butyldimethylsilyldihalomethyllithium. 1,3-Rearrangement of Silyl Group from Carbon to Oxygen
Authors: Shinokubo Hiroshi , Oshima Koichiro , Utimoto Kiitiro 
Published: March 2006

Abstract
Treatment of ethyl benzoate or isopropyl formate with tert-butyldimethylsilyldibromomethyllithium gave alkyl silyl mixed acetal via 1,3-rearrangement of silyl group from carbon to oxygen. The reaction of the mixed acetals with allylsilane in the presence of Lewis acid afforded allylated ethers.
Synthesis and Structure of Octahedral Nickel(IV) Complexes Containing Two Chelating Acylphenolato Ligands
Authors: Klein Hans-Friedrich , Bickelhaupt Alfred , Lemke Mathias , Jung Thomas , Röhr Caroline 
Published: March 2006

Abstract
2-Acylphenolato complexes can be oxidized using iodine or diiodoalkanes at ambient conditions to afford low-spin d6 complexes . The molecular structure of the 5-tert-butyl-3-methyl derivative contains two axial trimethylphosphines and a cisoidal arrangement of two acylphenolato dianions in equatorial positions.
Reactivity Enhanced Selectivity. Dienophile Dependent π-Facial Selectivity in the Diels-Alder Reactions of 5-Substituted 1,3-Cyclopentadienes
Authors: Ishida Masaru , Kakita Shizuko , Inagaki Satoshi 
Published: March 2006

Abstract
Against a frequently held view in organic chemistry, it was proposed that the selectivity is enhanced by the reactivity in a certain class of reactions. The reactivity-enhanced selectivity (RES) theory was experimentally confirmed by the π-facial selectivities in the Diels-Alder reactions of 5-phenylthiocyclopentadiene dependent on the reactivities of dienophiles.
Characteristic O2-Binding of Lipidprotoheme in Phospholipid Bilayer Membrane
Authors: Kawai Noriyuki , Komatsu Teruyuki , Yanagimoto Tetsuya , Nishide Hiroyuki , Tsuchida Eishun 
Published: March 2006

Abstract
A protoporphyrin IX derivative having three long alkyl chains and an axial imidazole (lipidprotoporphyrin) was homogeneously embedded into the bilayer membrane of the phospholipid vesicle. The O2-binding affinity of the lipidprotoheme was affected by the phase transition of the bilayer membrane, reflecting the change in the O2-association rate constant.
Synthesis of RGDFPASS-containing Cystine Peptides and Isolation of RGD-recognizing Receptor in Sand Dollar Embryo by the Peptide-Affinity Chromatography
Authors: Yamamoto Yasuo , Katow Hideki , Sofuku Shosuke 
Published: March 2006

Abstract
RGDFPASS-containing cystine decapeptides were synthesized by the solution method. These peptides strongly inhibited platelet aggregation. N-Acetyl and C-methoxy peptide ([Phe5]-FR-1-AM) having amphiphilic structure exhibited especially high activity as a platelet aggregation inhibitor. A 240 kDa RGD-recognizing receptor was obtained from a sand dollar embryo by RGDFPASS-containing peptide-affinity chromatography.
Magnesium Bromide-Promoted E⁄Z-Isomerization of Carbonyl-Conjugated Nitrones and Highly Stereo- and Regioselective Cycloadditions to Allylic Alcohol Dipolarophiles
Authors: Kanemasa Shuji , Tsuruoka Takashi 
Published: March 2006

Abstract
A Lewis acid promotes the E- to Z-isomerization of carbonyl-conjugated nitrones. The MgBr2•Et2O-catalyzed cycloadditions to allylic alcohols lead to the exclusive formation of the exo-stereoisomers of isoxazolidine-5-methanols. Participation of the Z-nitrone/MgBr2 complexes is suggested.
Photocontrolled Attachment of Anti-Azobenzene Antibody onto Azobenzene-Linked Quartz Surfaces
Authors: Kawashima Kazuo , Sisido Masahiko , Ichimura Kunihiro 
Published: March 2006

Abstract
Peptides carrying azobenzene group were covalently linked to surfaces of quartz plates and the plates were reacted with a monoclonal antibody against trans-azobenzene group. The amount of antibody attached was estimated by an AFM observation of gold-labeled anti-mouse IgG antibodies that were bound to the anti-azobenzene antibody. The number of the gold particles decreased significantly when the peptides on the quartz plate were irradiated with UV light prior to the attachment of the anti-azobenzene antibody.
Synthesis of 5,6,17,18-Bisdehydrotetrathia[24]annulene[2.2.2.2]. A Strained Planar Annulene Devoid of Peripheral Conjugation
Authors: Kawase Takeshi , Darabi Hossein Reza , Uchimiya Rika , Oda Masaji 
Published: March 2006

Abstract
5,6,17,18-Bisdehydrotetrathia[24]annulene[2.2.2.2], synthesized through a sequence of the McMurry coupling of 1,1-dichloro-2,2-di(5-formyl-2-thienyl)ethene and a novel double Fritsch-Buttenberg-Wiechell rearrangement, has a planar X-ray structure with bent triple bonds and short S-S contacts but shows little sign of peripheral conjugation.
Synthesis of Quinolines via Intramolecular Cyclization of Benzylacetone Oxime Derivatives Catalyzed with Tetrabutylammonium Perrhenate(VII) and Trifluoromethanesulfonic Acid
Authors: Kusama Hiroyuki , Yamashita Yuko , Narasaka Koichi 
Published: March 2006

Abstract
Intramolecular cyclization reaction on the nitrogen atom of benzylacetone oxime derivatives, which have electron donating group(s) on the phenyl group, proceeds by treatment with tetrabutylammonium perrhenate, trifluoromethanesulfonic acid, and 4-chloranil in refluxing 1,2-dichloroethane to afford quinoline derivatives in good yield.
C=S Bond Fission in Coordinated Thioureas and Formation of a Sulfide-bridged Dinuclear Pd(II) Complex
Authors: Okeya Seichi , Kameda Hidemi , Kawashima Hiromu , Shimomura Hiroshi , Nishioka Takanori , Isobe Kiyoshi 
Published: March 2006

Abstract
A reaction of [Pd(tol2TU−1-N,S)2] (tol2TU = 1,3-di(o-tolyl)thiourea) with dppm affords [Pd(tol2TU−2-N,S)(tol2TU-S)(dppm-P)] (1). Complex 1 is gradually converted into [Pd2(μ-S)(μ-dppm)2(tol2TU−1-S)2] (2), with a sulfide bridge via CS bond activation in tol2TU. X-ray diffraction study shows that complex 2 has an A-frame dinuclear Pd(II) structure without a Pd-Pd.
Convenient and Simple Preparation of Nitroolefins Nitration of Olefins with Nitric Oxide
Authors: Mukaiyama Teruaki , Hata Eiichiro , Yamada Tohru 
Published: March 2006

Abstract
Nitroolefins are conveniently prepared in high yields by nitration of olefins under an atmospheric pressure of nitric oxide at room temperature and subsequent treatment with acidic alumina.
Highly Efficient Regeneration of Carbonyl Compounds from Oximes, Tosylhydrazones, 1,3-Dithiolanes, and 1,3-Dithianes Using Cupric Nitrate Supported on Silica Gel
Authors: Lee Jong Gun , Hwang Je Pil 
Published: March 2006

Abstract
Cupric nitrate supported in silica gel is exceptionally efficient in regenerating aldehydes and ketones from oximes, tosylhydrazones, 1,3-dithiolanes, and 1,3-dithianes.
Optochemical HCl Gas Detection Based on Zinc Tetrabromotetraphenylporphyrin Dispersed in Ethyl Cellulose
Authors: Sadaoka Yoshihiko , Rodriguez Nena V , Tagliatesta Pietro 
Published: March 2006

Abstract
For zinc tetrabromotetraphenylporphyrin dispersed in a polymer matrix, the obsorbance at 479 nm and 722 nm is sensitive to sub-ppm levels of HCl gas and also good reversibilty is abserved at room temperature.
Application of Modified Mosher’s Method to α-Aromatic Secondary Alcohols. Exception of the Rule and Conformational Analyses
Authors: Ohtani Ikuko I , Hotta Kaori , Ichikawa Yoshiyasu , Isobe Minoru 
Published: March 2006

Abstract
The modified Mosher’s method was applied to the secondary alcohols possessing an aromatic ring on α-carbon. Some of the alcohols had the irregular Δδ values on β-protons, which were presumably due to the anisotropic effects of α-aromatic groups. In these cases, the absolute configurations were successfully determined by the modified Mosher’s method with elimination of irregular Δδ data.
Synthetic Model Approach to “Through-Bond” and “Through-Space” Electron Transfer Pathways
Authors: Higashida Suguru , Tsue Hirohito , Sugiura Ken-ichi , Kaneda Takahiro , Tanaka Yoshinori , Taniguchi Seiji , Okada Tadashi , Sakata Yoshiteru 
Published: March 2006

Abstract
In order to understand electron transfer pathways through bond and through space, a covalently linked porphyrin-quinone molecule with an inserted phenyl ring between the redox pair was prepared. The inserted π-system is not used as a stepping stone in electron-transfer pathways.
Double-Layered Tetrathiafulvalene as a Novel Electron Donor
Authors: Matsuo Koji , Takimiya Kazuo , Aso Yoshio , Otsubo Tetsuo , Ogura Fumio 
Published: March 2006

Abstract
A double-layered tetrathiafulvalenophane with four alkylenedithio spacers has been synthesized as a novel electron donor. Its structure has been elucidated by an X-ray crystal analysis to have a pair of face-to-face tetrathiafulvalenes with a small cavity in the center. Its electronic spectrum and cyclic voltammetry show a transannular interaction between both TTF units.
BF3-Catalyzed Reaction of Cyclobutene-1,2-dione Monoacetal and Its Vinylog with Allylsilanes. Regioselective Synthesis of 4-Allyl-4-ethoxycyclobutenones from Squaric Acid and Their Conversion to Bi- and Tricycloalkanones
Authors: Yamamoto Yoshihiko , Ohno Masatomi , Eguchi Shoji 
Published: March 2006

Abstract
Regioselective allylation of 2,4- and 4,4-diethoxycyclobutenones was performed with allylsilanes in the presence of BF3•Et2O via a common ethoxycarbenium ion intermediate. A merit of this reaction was demonstrated in an efficient conversion of the obtained 4-allyl-4-ethoxycyclobutenones to bi- and tricycloalkanones.
X-Ray Diffraction Study on Smectic Liquid Crystal State of Dimyristoylphosphatidylcholine
Authors: Tajima Kazuo , Imai Yoko , Ando Kazuto , Nakamura Akio , Koshinuma Masakatsu 
Published: March 2006

Abstract
In order to make clear the physical states of dimyristoylphosphatidylcholine (DMPC) in the smectic liquid crystal phase, the repeat distance of the bilayer was measured as a function of temperature by low-angle X-ray diffraction. It was found that the repeat distance decreased with increasing temperature, and its temperature dependence was different below and above T* (= about 29 °C), which was higher than the gel-liquid crystal temperature (TM = 23.9 °C). This T* temperature was interpreted as a temperature at which the bilayer of the (Lα + H2O) phase transformed from a partly pseudostable state to a fully stable state.
Syntheses and Characterization of Palladium and Platinum Complexes of Phosphorin
Authors: Shiotsuka Michito , Tanamachi Takahiro , Matsuda Yoshihisa 
Published: March 2006

Abstract
Palladium and Platinum complexes of 4,5-dimethyl-2-phenylphosphorin (dmppn) were synthesized through ligand exchange reactions with M(C6H5CN)2Cl2 (M = Pd, Pt). It was confirmed by means of 31P- and 13C-NMR spectroscopy that these complexes effect strong π-back donation from metal to phosphorin and have a square planar stucture with cis configuration in dichloromethane solution.
Synthesis and Electro-Optical Properties of Dihydrobenzofurans and Dihydrofuropyridines as Chiral Dopants for Ferroelectric Liquid Crystals
Authors: Kusumoto Tetsuo , Sato Ken-ichi , Hiyama Tamejiro , Takehara Sadao , Ito Kayoko 
Published: March 2006

Abstract
Optically active dihydrobenzofurans and dihydrofuropyridines were synthesized and shown to be good chiral dopants for ferroelectric liquid crystals.
Enzymatic Preparation of Alkanedicarboxylic Acid Monoesters
Authors: Ozaki Eiji , Uragaki Toshitaka , Sakashita Keiichi , Sakimae Akihiro 
Published: March 2006

Abstract
Hydrolysis of alkanedicarboxylic acid dimethyl esters using esterase from Pseudomonas putida MR-2068 gave exclusively pure monoesters. Hydrolytic activities were dependent on the carbon chain length of the substrates. This esterase also catalysed enantio- and regio-selective hydrolysis of α-methylalkanedicarboxylic acid dimethyl esters.
Partial Oxidation of Propane to Acrylic Acid over Reduced Heteropolymolybdate Catalysts
Authors: Ueda Wataru , Suzuki Yasuhiro 
Published: March 2006

Abstract
Propane was catalytically oxidized to acrylic acid and acetic acid with molecular oxygen at 360 °C over heteropolymolybdophosphoric acids which were treated with pyridine in the catalyst preparation. Under presently optimized reaction conditions 24% selectivity to acrylic acid and 15% to acetic acid were achieved at 12% conversion of propane. A reduced state of the catalyst generated by heat-treatment of the pyridine-treated heteropoly acid is important for the selectivities.
Diastereodivergent Chiral Synthesis of the Furofuran Lignans (+)-Sesamin and (−)-Asarinin
Authors: Samizu Kiyohiro , Ogasawara Kunio 
Published: March 2006

Abstract
Two diastereomeric lignans (+)-sesamin and (−)-asarinin have been prepared diastereodivergently via the common intermediate generated by the chirotopical Heck reaction.
Formation and Cycloreversion of Dioxadiazole Intermediates in the Reaction of Diazo Compounds with Singlet Oxygen
Authors: Nojima Takayuki , Ishiguro Katsuya , Sawaki Yasuhiko 
Published: March 2006

Abstract
Product ratios of N2/N2O as an indicator for carbonyl oxide formation in the 1O2 oxygenation of phenyl diazomethanes were not affected by protic solvents but were significantly increased by electron-donating substituents. A mechanism is suggested in which 1,2,3,4-dioxadiazole intermediates are formed by the cycloaddition of 1O2 and diazomethanes and its cycloreversion is controlled by the relative stability of resulting carbonyl oxides.
Photolysis of 1,2,4,5-Benzenetetracarboxylic Dianhydride in a Low-Temperature Argon Matrix. Direct Observation of Reactive Intermediates Stepwise Produced
Authors: Moriyama Masaya , Ohana Tsuruyoshi , Yabe Akira 
Published: March 2006

Abstract
Irradiation of 1,2,4,5-benzenetetracarboxylic dianhydride produced stepwise a cyclopropenone and benzyne intermediates with the release of CO2 and CO in a low-temperature argon matrix. In the final stage the further extrusion of CO2 and CO gave 1,3,5-hexatriyne which was a potential product in the ring-opening reaction of benzdiyne.
Oxidation of Allylic Alcohols by Means of Electrochemical Methodology. Novel Rearrangement of Prenol under Direct Anodic Oxidation Conditions
Authors: Maki Shojiro , Konno Katsuhiro , Takayama Hiroaki 
Published: March 2006

Abstract
Electrochemical oxidation of naturally occurring allylic alcohols is described. Under direct anodic oxidation conditions, prenol 1 was readily oxidized, followed by rearrangement presumably on the surface of the anodic electrode, to give 3-hydroxy-2,2′-dimethyl-1,1′-dimethoxy propane 2 in high yield, whereas geraniol 5 afforded citral 6 under the same conditions.
Hydrogen Absorption Characteristics of Crystalline LaNi5 Prepared by Mechanical Alloying
Authors: Sakaguchi Hiroki , Sugioka Takuo , Adachi Gin-ya 
Published: March 2006

Abstract
Crystalline LaNi5 powder was synthesized by mechanical alloying of constituent metals preceding annealing at lower than a melting point of the alloy. The structure of the sample as mechanically alloyed was amorphous. After two-step heat treatments at 723 K in a stream of hydrogen and at 1273 K in helium, the crystalline sample was obtained. The hydrogen absorption characteristics of the crystalline sample were in fair agreement with those of the alloy prepared by a conventional melting technique.
Study of Interfacial Degradation of the Vapor-Deposited Bilayer of Alq3/TPD for Organic Electroluminescent (EL) Devices by Photoluminescence
Authors: Han Eun-Mi , Do Lee-Mi , Yamamoto Noritaka , Fujihira Masamichi 
Published: March 2006

Abstract
The interfacial change of a vapor-deposited TPD (N,N′-diphenyl-N,N′-bis-(3-methylphenyl)-[1,1′-biphenyl]-4,4′-diamine) and Alq3 (Tris-(8-hydroxyquinoline) aluminum) bilayer film was characterized by photoluminescence (PL) in the temperature range from room temperature to 80 °C under an ambient atmosphere. The TPD and the Alq3 film are widely used as a hole transport and an emitter layer, respectively, in organic electroluminescent (EL) devices (ITO/TPD/Alq3/metal). As the substrate plate, a slide glass was used in this work.
In an Alq3/TPD bilayered structure, two PL bands from Alq3 and TPD were observed and the relative PL intensity of Alq3 to that of TPD was increased with time. The change was accelerated with increasing temperature. In case of a co-deposited single layer of TPD and Alq3, an Alq3 PL band predominated and, in addition, the PL intensity was not changed remarkably with increasing temperature. These results support that the PL change observed for the Alq3/TPD bilayered structure is ascribed to quenching of photo-excited TPD by Alq3 as a result of diffusion of the components into each other layer.
Synthesis and X-Ray Structure of 1,8-Bis(phenyltelluro)naphthalene and Its Peri Tellurium-Tellurium Interaction
Authors: Fujihara Hisashi , Ishitani Hideya , Takaguchi Yutaka , Furukawa Naomichi 
Published: March 2006

Abstract
New 1,8-diaryl and dialkyl substituted ditelluronaphthalenes, 1,8-bis(phenyltelluro)naphthalene (1) and 1,8-bis(butyltelluro)naphthalene, have been synthesized. The cyclic voltammogram of 1 showed the reversible electrochemical oxidation with remarkably low oxidation potential. The peri telluronio-tellurenyl interaction in the telluronium cation of 1 was identified by 125Te NMR spectroscopy.
Three-Dimensional Sulfur-Based π-Donor: A Novel Dimeric TTF Derivative of a Cross-Cyclophane Type
Authors: Tanabe Jun , Kudo Tomoyuki , Okamoto Maki , Kawada Yuzo , Ono Go , Izuoka Akira , Sugawara Tadashi 
Published: March 2006

Abstract
A novel dimeric TTF derivative (1) of a cross-cyclophane type was prepared through an intramolecular coupling of a cyclic tetramer of alkylated dmit. The crystal structure of 1·TCNQ indicates a unique sheet structure of 1 through face-to-face and two types of side-by-side interactions. Cyclic voltammetric measurement of 1 suggests the presence of intramolecular interaction between two donor units.