Soumen Mukherjee、Thomas Weyhermüller、Karl Wieghardt 等 4 位作者2003-01-01Dalton Transactions
The synthesis and crystal structure of a dinuclear complex containing a μ-oxo(diferric) core and four O,N-coordinated o-iminobenzosemiquinonate(1−) π radical anions, [FeIII2(μ-O)(t-buLISQ)4], is described; its electronic structure is best described as comprising two FeIII(LISQ)2 halves with S* = 3/2 (SFe = 5/2 coupled…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
Jinhui Tong、D. Martini、N.P. Magtoto 等 4 位作者2003-01-01Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena
Interfacial reactions of Ta with a Si–O–C low-dielectric constant (low-k) material and Cu/Ta/Si–O–C multilayers are investigated using x-ray photoelectron spectroscopy (XPS) and cross-sectional transmission electron microscopy (TEM). Data indicate that Ta deposition on the low-k substrate results in the initial format…
Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability
Hongsheng Chen、J. M. Wang、Tao Pan 等 6 位作者2003-01-01Journal of The Electrochemical Society
Al-substituted coprecipitated with the additives and was prepared by a complexation-coprecipitation method. The physical properties of Al-substituted samples containing different amounts of or were examined by X-ray diffraction, AES and ICP. The effects of and on the electrochemical performance of Al-substituted such…
Hydrogen Storage and MaterialsLayered Double Hydroxides Synthesis and ApplicationsAmmonia Synthesis and Nitrogen Reduction
C.S. Alvarez、Alan Bashall、Andrew D. Bond 等 11 位作者2003-01-01Dalton Transactions
The reactions of manganocene, Cp2Mn (Cp = C5H5), with 2-aminopyrimidines give similar, octameric amido/imido cage complexes of general formulae [{CpMnNHR}{MnNR}]4 [R = 4,6-Me2pm (1a), 4-MeO-6-Mepm (1b), 4,6-(MeO)2pm (1c); pm = pyrimidinyl]. The structures of these complexes can be visualised as being composed of centr…
Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes
A. David Woolfson、Karl Malcolm、Sean P. Gorman 等 6 位作者2003-01-01Journal of Materials Chemistry
Silicone has a relatively high coefficient of friction and silicone medical devices therefore lack inherent lubricity, leading to pain on device insertion and potential tissue trauma. In this study, higher molecular weight tetra(alkoxy)silanes, particularly tetra(oleyloxy)silane, have been used as crosslinkers in the…
Advanced Sensor and Energy Harvesting MaterialsPolymer Surface Interaction StudiesSilicone and Siloxane Chemistry
Robert J. Deeth、D. L. Foulis、Benjamin J. Williams-Hubbard2003-01-01Dalton Transactions
Empirical Ligand Field Molecular Mechanics (LFMM) parameters for CoIII–F and CoIII–CN bonds are developed from Density Functional Theory (DFT) calculations on octahedral [CoF6]3− and [Co(CN)6]3−. In addition to the 5T2g and 1A1g ground states of [CoF6]3− and [Co(CN)6]3− respectively, DFT can also access the low-spin f…
Advanced Chemical Physics StudiesMagnetism in coordination complexesInorganic Fluorides and Related Compounds
Figen Türksoy、G. Hughes、Andrei S. Batsanov 等 4 位作者2003-01-01Journal of Materials Chemistry
Phenylene–2,5-dimethylpyrazinyl co-oligomers and a dipyridylpyrazine derivative have been synthesised by Suzuki cross-coupling reactions starting from 2,5-dibromo-3,6-dimethylpyrazine. X-Ray crystal structures are reported for two teraryl derivatives, viz. 2,5-bis(2-methoxyphenyl)-3,6-dimethylpyrazine 2 and 2,5-bis(6-…
Organic Light-Emitting Diodes ResearchConducting polymers and applicationsLuminescence and Fluorescent Materials
P. Barrade2003-01-01Infoscience (Ecole Polytechnique Fédérale de Lausanne)
Dedicated for energy storage, supercapacitors offer new solutions in various applications. This contribution describes briefly main principles of supercapacitors, basics for the design of a supercapacitive tank, and the needed power electronics developments linked to the use of these new components. Typical applicatio…
Supercapacitor Materials and FabricationElectric and Hybrid Vehicle Technologies
Zbigniew Zurecki、Ranajit Ghosh、John H. Frey2003-01-01International journal of powder metallurgy
A large fraction of automotive components made of hardened powder-metallurgy steels are subject to finish-turning before final assembly. Because of a characteristically poor machinability and high surface finish requirements, the conventional P/M turning operations usually require the use of flood-cooled polycrystalli…
Advanced machining processes and optimizationMetal Alloys Wear and PropertiesPowder Metallurgy Techniques and Materials
Ron Zhao、Larry C. Wadsworth、Christine Sun 等 4 位作者2003-01-01Polymer International
Abstract Polypropylene (PP)/poly(ethylene terephthalate) (PET) bicomponent (bico) fibres are successfully melt blown in the Reicofil® meltblown (MB) pilot line commissioned at the Textiles and Nonwovens Development Center (TANDEC), the University of Tennessee, Knoxville. The bico fibers possess a cross‐sectional side‐…
Textile materials and evaluationsMaterial Properties and Processing
Á. Coves、B. Gimeno、A. A. San Blas 等 6 位作者2003-01-01IEEE Antennas and Wireless Propagation Letters
The problem of scattering of electromagnetic plane waves by one-dimensional (1D) periodic dielectric gratings, under the most general condition of oblique incidence (3D incidence), is rigorously solved. A recently developed vectorial modal method for obtaining the modal spectrum of 1D dielectric periodic guiding media…
Photonic Crystals and ApplicationsAdvanced Antenna and Metasurface TechnologiesOptical Coatings and Gratings
María E. Taboada、P. A. Palma、Teófilo A. Graber2003-01-01Crystal Research and Technology
Abstract A study was made on a isothermal process for the crystallization of potassium sulfate as an alternative to the cooling process. The process employs addition of 1‐propanol to aqueous salt solutions to achieve the “saltingout” of the K 2 SO 4 . This work was carried out using an automated Mettler Toledo model R…
Crystallization and Solubility StudiesChemical and Physical Properties in Aqueous SolutionsFreezing and Crystallization Processes
J. K. Vij、A. Kocot、T. S. Perova2003-01-01Molecular Crystals and Liquid Crystals
The results of our investigations show that on an untreated flat substrate, the discotic liquid crystals align side-on (or homeotropically) if the sample is slowly cooled from the isotropic phase. If the sample is kept in the glassy or crystalline state for several hours, the alignment inevitably changes to edge-on (p…
Liquid Crystal Research AdvancementsSemiconductor Lasers and Optical DevicesPlant Reproductive Biology
Devicharan Chidambaram、Clive R. Clayton、Gary P. Halada2003-01-01Journal of The Electrochemical Society
In order to understand more clearly the nature of the anodic film formed on aluminum and its alloys, and the mechanism of inhibition of corrosion by chromates, a novel investigation has been made on the anodic film formed on AA1060 using X-ray photoelectron spectroscopy. The goal has been to elucidate whether the inte…
Corrosion Behavior and InhibitionNon-Destructive Testing TechniquesAnodic Oxide Films and Nanostructures
M Juárez Gonzalez、E. Hernández、J.A. Ascencio 等 6 位作者2003-01-01Journal of Materials Chemistry
Hydroxyapatite (HAp) crystals were grown on the surface of a cellulose matrix previously modified using titanium isopropoxide (TIPO). This modification provides the appropriate labile chemical groups to grow HAp: the primary hydroxyl of cellulose, the most reactive of the three groups, has not enough reactivity to gro…
Advanced Cellulose Research StudiesNanomaterials for catalytic reactionsPigment Synthesis and Properties
Atsushi Satsuma、Masanori Hashimoto、Junji Shibata 等 5 位作者2003-01-01Chemical Communications
The presence of strong acid sites on a metal oxide support results in a reaction of adsorbed NH4+ species in a flow of NO + O2, which is a N2O free pathway in selective catalytic reduction of NO by H2 over supported Pt catalysts.
Catalytic Processes in Materials ScienceAmmonia Synthesis and Nitrogen ReductionIndustrial Gas Emission Control
Ahmad Mousa、U. S. Ishiaku、Z. A. Mohd Ishak2003-01-01Polymer International
Abstract Plasticized poly(vinyl chloride)/nitrile butadiene rubber (PVC/NBR) thermoplastic elastomers (TPEs) were dynamically cured in the melt stage with the incorporation of a semi‐efficient curing system using a Brabender Plasticorder at 150 °C and rotor speed of 50 rev min −1 . Sulfur concentration was progressive…
Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesPolymer Science and PVC
Cassandra I. Monárrez、Dawn M. Stovall、Jee H. Woo 等 5 位作者2003-01-01Physics and Chemistry of Liquids
Experimental solubilities are reported at 25.0C for 9-fluorenone dissolved in 40 different organic nonelectrolyte solvents containing ether-, chloro-, hydroxy-, cyano and t -butyl-functional groups. Results of these measurements are used to test the applications and limitations of expressions derived from Mobile Order…
Ionic liquids properties and applicationsThermodynamic properties of mixturesCrystallization and Solubility Studies
Alexander Becker、Wilhelm Becker、Julia C. Marxen 等 4 位作者2003-01-01Zeitschrift für anorganische und allgemeine Chemie
Abstract The biomineralization process was simulated in vitro by the precipitation of calcium carbonate in the presence of two biological additives: bovine serum albumin (BSA) and soluble matrix from the shell of the freshwater snail Biomphalaria glabrata . The crystallization was carried out with the classical ammoni…
Bone Tissue Engineering MaterialsPolymer Surface Interaction StudiesCalcium Carbonate Crystallization and Inhibition
Xia Tong、Yue Zhao2003-01-01Journal of Materials Chemistry
Two gelator compounds were used to prepare self-assembled cholesteric liquid crystal (CLC) gels. The presence of a physical network formed by the fibrous aggregates of the gelators in the CLC host creates inhomogeneous domains and generates a highly scattering state. The scattering-based electrooptical switching effec…
Liquid Crystal Research AdvancementsLipid Membrane Structure and BehaviorSupramolecular Self-Assembly in Materials