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O⋯S vs. N⋯S intramolecular nonbonded interactions in neutral and radical cation salts of TTF-oxazoline derivatives: synthesis, theoretical investigations, crystalline structures, and physical properties

C. Rethore、Augustin M. Mădălan、Marc Fourmigué 等 8 位作者2007-01-01New Journal of Chemistry

Racemic and enantiopure ethylenedithio-tetrathiafulvalene-thiomethyl-oxazoline (EDT-TTF-(SMe)-OX) derivatives have been synthesized. Single-crystal X-ray diffraction analyses reveal the establishment of O⋯S nonbonded interactions, unprecedented in the TTF series, characterized by short S⋯O distances and linear O⋯SMe m…

Magnetism in coordination complexesCrystallography and molecular interactionsOrganic and Molecular Conductors Research

Thermodynamics of Titanium, Nitrogen and TiN Formation in Liquid Iron

Wan-Yi Kim、Jong-Oh Jo、Tae-In Chung 等 5 位作者2007-01-01ISIJ International

Thermodynamics of titanium, nitrogen and TiN formation in liquid iron was investigated using the metal–nitride–gas equilibration under different nitrogen partial pressures in the temperature range of 1873–1973 K. The nitrogen solubility in liquid iron increased with increasing titanium content. Pure solid TiN was form…

Metal and Thin Film MechanicsMetallurgical Processes and ThermodynamicsMetallurgical and Alloy Processes

Copper inverse-9-metallacrown-3 compounds showing antisymmetric magnetic behaviour

T. Afrati、C. Dendrinou-Samara、Catherine P. Raptopoulou 等 6 位作者2007-01-01Dalton Transactions

The use of phenyl 2-pyridyl ketoxime (PhPyCNO)/X(-)"blends" (X(-) = OH(-), Cl(-), ClO(4)(-)) in copper chemistry has yielded trinuclear clusters that have been characterized as inverse-9-metallacrown-3 accommodating one or two anions. The magnetic behaviour has shown a large antiferromagnetic interaction. The discrepa…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms

Ytterbium amides of linked bis(amidinate): synthesis, molecular structures, and reactivity for the polymerization of l-lactide

Junfeng Wang、Tao Cai、Yingming Yao 等 5 位作者2007-01-01Dalton Transactions

The steric effect of an amide group on the synthesis, molecular structures and reactivity of ytterbium amides supported by linked bis(amidinate) L (L = [Me3SiNC(Ph)N(CH2)3NC(Ph)NSiMe3]) is reported. Reaction of LYbCl(THF)2 with equimolar NaNHAr' and NaNHAr (Ar' = 2,6-Me2C6H3; Ar = 2,6-iPr2C6H3), respectively, gave the…

Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysis

Type of Plasmas and Microstructures of TiO[sub 2] Thin Films Prepared by Plasma Enhanced Chemical Vapor Deposition

Ana Borrás、J. Cotrino、Agustı́n R. González-Elipe2007-01-01Journal of The Electrochemical Society

thin films have been prepared at temperatures between 298 and by plasma enhanced chemical vapor deposition at working pressures of and , in this latter case by using electron cyclotron resonance conditions. Ti isopropoxide has been used as the precursor and oxygen or mixtures of as the plasma gas. The refraction index…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications

New sol–gel synthesis of a (CaO)0.3(Na2O)0.2(P2O5)0.5 bioresorbable glass and its structural characterisation

David M. Pickup、Paul Guerry、Robert Moss 等 6 位作者2007-01-01Journal of Materials Chemistry

An improved sol–gel synthesis of (CaO)0.3(Na2O)0.2(P2O5)0.5 bioresorbable glass has been developed. The structures of both the dried gel and the stabilised sol–gel glass have been characterised using high-energy XRD, 31P MAS NMR and FT-IR spectroscopy. The structure of the analogous melt-quench prepared glass has also…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsPigment Synthesis and Properties

Host Sensitized White Luminescence from ZnGa[sub 2]O[sub 4]:Dy[sup 3+] Phosphor

K. Mini Krishna、Gopinathan Anoop、M. K. Jayaraj2007-01-01Journal of The Electrochemical Society

Dysprosium-doped zinc gallate phosphors with the nominal formulas were prepared by the high-temperature conventional solid-state reaction technique, the dopant concentration being varied in the range . and samples were also prepared for comparison for a dopant concentration of . Only the intrinsic self-activated emiss…

Luminescence Properties of Advanced MaterialsMicrowave Dielectric Ceramics SynthesisGa2O3 and related materials

Subwavelength optical imaging of evanescent fields using reflections from plasmonic slabs

Matthew D. Arnold、Richard J. Blaikie2007-01-01Optics Express

Reflection can significantly improve the quality of subwavelength near-field images, which is explained by appropriate interference between forward and reflected waves. Plasmonic slabs may form approximate super-mirrors. This paper develops general theory in both spectral and spatial representations that allows the re…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchNear-Field Optical Microscopy

The mixed alkali effect in ionically conducting glasses revisited: A study by molecular dynamics simulation

Junko Habasaki、K. L. Ngai2007-01-01Physical Chemistry Chemical Physics

When more than two kinds of mobile ions are mixed in ionic conducting glasses and crystals, there is a non-linear decrease of the transport coefficients of either type of ion. This phenomenon is known as the mixed mobile ion effect or Mixed Alkali Effect (MAE), and remains an unsolved problem. We use molecular dynamic…

Material Dynamics and PropertiesGlass properties and applicationsTheoretical and Computational Physics

Luminescent 1D chain of platinum(ii) terpyridyl units with p-dithiobenzoquinone organometallic linker: self-aggregation imparted from Pt⋯Pt/π–π interactions

Jamal Moussa、Keith Man‐Chung Wong、Lise‐Marie Chamoreau 等 5 位作者2007-01-01Dalton Transactions

Unlike p-dithiobenzoquinone (), which is extremely reactive and has never been isolated, the metal-stabilised p-dithiobenzoquinone [Cp*Ir(eta4-C6H4S2)] () was prepared and used as an efficient organometallic linker to construct novel supramolecular assemblies. Treatment of with the electrophilic Pt(II)(terpy) building…

Metal complexes synthesis and propertiesMagnetism in coordination complexesOrganic and Molecular Conductors Research

Design and Fabrication of Lightweight, Submillimeter Tubular Solid Oxide Fuel Cells

Toshio Suzuki、Yoshihiro Funahashi、Toshiaki Yamaguchi 等 5 位作者2007-01-01Electrochemical and Solid-State Letters

Here we report lightweight, high-performance tubular solid oxide fuel cells (SOFCs) with 0.8 mm diameter operable at/under 550 ° C . The SOFCs consist of ordinary materials with a well-designed anode microstructure with porosity of 46% (before reduction) and reduced anode thickness less than 200 μ m . Thus, the weight…

Advancements in Solid Oxide Fuel CellsCatalysis and Oxidation ReactionsElectronic and Structural Properties of Oxides

Performance of Electrolyte Composed of Spiro-type Quaternary Ammonium Salt and Electric Double-layer Capacitor Using It

Kazumi Chiba、Tsukasa Ueda、Hideo Yamamoto2007-01-01Electrochemistry

An electrolyte composed of a tetra-alkyl ammonium cation having a spiro structure (spiro-(1,1′)-bipyrrolidinium: SBP) showed excellent performance in terms of electric conductivity, viscosity, and solubility in various solvents, especially propylenecarbonate (PC). The electric double-layer capacitor (EDLC) using spiro…

Supercapacitor Materials and FabricationFuel Cells and Related MaterialsConducting polymers and applications

Liquid crystalline and nonlinear optical properties of bent-shaped compounds derived from 3,4′-biphenylene

Inmaculada C. Pintre、Nélida Gimeno、José Luís Serrano 等 8 位作者2007-01-01Journal of Materials Chemistry

The synthesis of different bent-core molecules derived from 3,4′-biphenylene bearing azo, azoxy, imine or ester linkages in their lateral structures is reported. Structure–activity relationships for their liquid crystalline behaviour are discussed. SmCP, USmCP and Colob mesophases are found depending on the type and n…

Liquid Crystal Research AdvancementsNonlinear Optical Materials ResearchPhotochemistry and Electron Transfer Studies

A versatile route to functional biomimetic coatings: ionomers for honeycomb-like structures

Léïla Ghannam、Maggy Manguian、Jeanne François 等 4 位作者2007-01-01Soft Matter

Highly ordered films were prepared by spreading out carbon disulfide (CS) solutions of ionomers over inorganic surfaces and for the first time over an organic surface. These ionomers, hydrophobic homopolymers or copolymers end-capped by a cationic group, were easily synthesized in a one-step reaction by a control radi…

Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesBlock Copolymer Self-Assembly

Importance of the Anisotropic Exchange Interaction for the Magnetic Anisotropy of Polymetallic Systems

Stergios Piligkos、Eckhard Bill、David Collison 等 8 位作者2007-01-01Journal of the American Chemical Society

A prerequisite to understand and subsequently to allow applications of the magnetic properties of polymetallic exchange coupled systems is a detailed insight into the magnetic properties of their elementary building blocks and the interaction between them. Such an understanding passes through the quantification of the…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms

Chromium Poisoning of the Porous Composite Cathode

Elena Yu. Konysheva、J. Mertens、H. J. Penkalla 等 5 位作者2007-01-01Journal of The Electrochemical Society

Electrochemical behavior of the (LSM)/porous functional layer(FL)/ -stabilized (8YSZ) electrolyte half cell in the presence of a Cr source was studied by dc method and impedance spectroscopy. The porous FL was made of a LSM and 8YSZ powder mixture. The degradation rate of the cell was found to depend strongly on the F…

Supercapacitor Materials and FabricationAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials

Electrochemical Preparation of Porous Copper Surfaces in Zinc Chloride-1-ethyl-3-methyl Imidazolium Chloride Ionic Liquid

Yi-Wen Lin、Chia‐Cheng Tai、I‐Wen Sun2007-01-01Journal of The Electrochemical Society

The preparation of porous copper or copper-zinc surfaces by electrochemical formation of binary alloys on Cu substrate and subsequent electrochemical etching of the zinc was investigated in a zinc chloride-1-ethyl-3-methylimidazolium chloride ionic liquid at . Cyclic voltammetry and X-ray diffraction measurements sugg…

Electrocatalysts for Energy ConversionSupercapacitor Materials and FabricationNanoporous metals and alloys

Photoreversible dendritic organogel

Yan Ji、Gui‐Chao Kuang、Xinru Jia 等 8 位作者2007-01-01Chemical Communications

A photoreversible organogel made from dendrons was reported.

Supramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched PolymersPolydiacetylene-based materials and applications

Activity and Community Composition of Denitrifying Bacteria in Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-Using Solid-phase Denitrification Processes

Shams Tabrez Khan、Yoko Horiba、Naoto Takahashi 等 4 位作者2007-01-01Microbes and Environments

Two laboratory-scale solid-phase denitrification (SPD) reactors, designated reactors A and B, for nitrogen removal were constructed by acclimating activated sludge with pellets and flakes of poly(3-hydoxybutyrate-co-3-hydroxyvalerate) (PHBV) as the sole added substrate under denitrifying conditions, respectively. The…

Wastewater Treatment and Nitrogen Removalbiodegradable polymer synthesis and propertiesMicrobial Metabolic Engineering and Bioproduction

Rapid and controllable covalent functionalization of single-walled carbon nanotubes at room temperature

Yadienka Martinez‐Rubi、Jingwen Guan、Shuqiong Lin 等 6 位作者2007-01-01Chemical Communications

We report a rapid and efficient procedure to functionalize SWNT where free radicals generated at room temperature by a redox reaction between reduced SWNT and diacyl peroxide derivatives were covalently attached to the SWNT wall.

Carbon Nanotubes in CompositesGraphene research and applicationsConducting polymers and applications