Boon K. Teo、Hong Zhang、Xiaobo Shi1993-09-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDesign, synthesis, and structure of the largest trimetallic cluster, [(Ph3P)10Au12Ag12PtCl7]Cl: the first example of a trimetallic biicosahedral supracluster and its implication for the vertex-sharing polyicosahedral growth of the gold/silver/platinum ternary cluster systemB…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesNanocluster Synthesis and Applications
Fumihiko Aiga、Kotoku Sasagane、Reikichi Itoh1993-09-01The Journal of Chemical Physics
A formulation for calculating frequency-dependent hyperpolarizabilities in the Mo/ller–Plesset perturbation theory is presented as the correlation correction to the TDHF approximation. Our quasienergy derivative (QED) method is applied, and the difference between the QED method and the pseudoenergy derivative (PED) me…
Advanced Chemical Physics StudiesNonlinear Optical Materials ResearchSolid-state spectroscopy and crystallography
Kjell Tore Smith、C. ROEMMING、Mats Tilset1993-09-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUnexpected disproportionation mechanism for proton-transfer reactions between 17-electron metal hydride cation radicals and neutral 18-electron metal hydridesKjell Tore Smith, Christian Roemming, and Mats TilsetCite this: J. Am. Chem. Soc. 1993, 115, 19, 8681–8689Publication…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceAmmonia Synthesis and Nitrogen Reduction
Holger Brand、John Arnold1993-09-01Organometallics
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEarly transition metal porphyrins: synthesis, characterization, and reactivity of novel out-of-plane cis-ligated zirconium porphyrin derivativesHolger Brand and John ArnoldCite this: Organometallics 1993, 12, 9, 3655–3665Publication Date (Print):September 1, 1993Publication…
Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresSurface Chemistry and Catalysis
Peter Vetter、Yoshinori Ohmura Yoshinori Ohmura、Tatsuo Uchida1993-09-01Japanese Journal of Applied Physics
Polymer layers can cause memory alignment of nematic liquid crystals. We describe an experimental method to characterize this effect. We studied the temperature dependence of the memory alignment on polyvinyl alcohol coatings. We also investigated the influence of the time span during which the memory alignment is gen…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsSurfactants and Colloidal Systems
T. S. Chow1993-09-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
A theory is presented to describe the effects of particle shape, orientation, and volume fraction on the anisotopic viscosities of concentrated colloidal dispersions. We start with Stokesian dynamics; a particle-shape tensor is derived from the analysis, which is then included in a fluid lattice model for the determin…
Material Dynamics and PropertiesSurfactants and Colloidal SystemsElectrostatics and Colloid Interactions
H. Un’no、Naoko Hikuma、Takahisa Omata 等 6 位作者1993-09-01Japanese Journal of Applied Physics
MgIn 2 O 4- X thin films were deposited onto a silica glass plate by the RF sputtering method. The highest conductivity observed for the film post-annealed under H 2 flow was 2.3×10 2 S/cm, with a carrier concentration of 6.3×10 20 cm -3 and a mobility of 2.2 cm 2 ·V -1 ·s -1 . No distinct optical absorption band was…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials
Karl M. Kadish、Eric Van Caemelbecke、Pierre Boulas 等 8 位作者1993-09-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFirst reversible electrogeneration of triply oxidized nickel porphyrins and porphycenes. Formation of nickel(III) .pi. dicationsKarl M. Kadish, Eric Van Caemelbecke, Pierre Boulas, Francis D'Souza, Emanuel Vogel, Michael Kisters, Craig J. Medforth, and Kevin M. SmithCite thi…
Porphyrin and Phthalocyanine ChemistryElectrochemical Analysis and ApplicationsAdvanced battery technologies research
Fumio Tatezono、Toshio Harada、Yoshiaki Shimizu 等 5 位作者1993-09-01Japanese Journal of Applied Physics
A new nondestructive readout method was proposed for photochromic rewritable memory media. When the medium has a thermal threshold in the writing process with a λ 1 laser, reading using two lasers having emission lines at λ 1 and λ 2 , which correspond to absorption bands of the two isomers, makes it possible to keep…
Neurobiology and Insect Physiology ResearchPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research
Koichi Hatada、Tatsuki Kitayama、Nobutaka Fujimoto 等 4 位作者1993-09-01Journal of Macromolecular Science Part A
Thermal degradation behaviors for homo- and copolymers of methacrylates prepared by stereospecific living polymerizations as well as radical polymerization were studied. Thermal stability of radically prepared PMMAs can be improved by careful control of end groups and by incorporation of methyl acrylate into the chain…
Advanced Polymer Synthesis and CharacterizationPolymer Nanocomposites and PropertiesThermal and Kinetic Analysis
Joseph. Wang、Lúcio Angnes、Haim Tobias 等 8 位作者1993-09-01Analytical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon aerogel composite electrodesJoseph. Wang, Lucio. Angnes, Haim. Tobias, Rebecca A. Roesner, Keith C. Hong, Robert S. Glass, Fung Ming. Kong, and Richard W. PekalaCite this: Anal. Chem. 1993, 65, 17, 2300–2303Publication Date (Print):September 1, 1993Publication History…
Supercapacitor Materials and FabricationGas Sensing Nanomaterials and SensorsAnalytical Chemistry and Sensors
Naoki Toshima、Yuan Wang1993-09-01Chemistry Letters
Abstract Polymer-protected Cu/Pd bimetallic colloids with different atomic ratio of Cu to Pd were successfully prepared by refluxing a glycol solution of hydroxide of copper and palladium in the presence of poly(N-vinyl-2-pyrrolidone). The TEM, XRD, AAS and UV-vis spectrum measurements indicate the formation of bimeta…
Catalytic Processes in Materials ScienceCopper-based nanomaterials and applicationsNanoporous metals and alloys
Guozhong Cao、H.W. Brinkman、J. Meijerink 等 5 位作者1993-09-01Journal of the American Ceramic Society
Chemical vapor deposition (CVD) and electrochemical vapor deposition (EVD) have been applied to deposit yttria‐stabilized‐zirconia (YSZ) on porous ceramic media. The experimental results indicate that the location of YSZ deposition can be varied from the surface of the substrates to the inside of the substrates by cha…
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel Cells
Sundaram Balasubramanian、K. J. Rao1993-09-01The Journal of Physical Chemistry
The mixed alkali effect (MAE) in glasses has been investigated using molecular dynamics simulation. It has been established using Van Hove type correlation functions that alkali ions exhibit site preferences during migration. The occurrence of conductivity minimum has been demonstrated, and reasons for suppression of…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsElectrochemical Analysis and Applications
Rolf Moors、Fritz Vögtle1993-09-01Chemische Berichte
Dendrimeric Polyamines The dendritic amines 2, 3, 4 and the imine 6 are synthesized by a divergent strategy. The formerly problematic reduction of polynitriles is achieved by the use of diisobutylaluminium hydride in high yield. The functional imine dendrimer 6 is converted into its tricobalt complex 7 .
RNA Interference and Gene DeliveryChemical Synthesis and AnalysisDendrimers and Hyperbranched Polymers
D. Marton、Kevin J. Boyd、T.E. Lytle 等 4 位作者1993-09-01Physical review. B, Condensed matter
Subplantation of the noble-gas ions ${\mathrm{He}}^{+}$, ${\mathrm{Ne}}^{+}$, ${\mathrm{Ar}}^{+}$, and ${\mathrm{Kr}}^{+}$ into graphite in the energy range of 10--150 eV with doses in the range of 1--15\ifmmode\times\else\texttimes\fi{}${10}^{14}$ ions/${\mathrm{cm}}^{2}$ has been studied by Auger electron spectrosco…
Electron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysisGraphite, nuclear technology, radiation studies
Adela Coello、Francisco Meijide、Eugenio Rodríguez Núñez 等 4 位作者1993-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAggregation behavior of sodium cholate in aqueous solutionA. Coello, F. Meijide, E. Rodriguez Nunez, and J. Vazquez TatoCite this: J. Phys. Chem. 1993, 97, 39, 10186–10191Publication Date (Print):September 1, 1993Publication History Published online1 May 2002Published inissu…
Crystallization and Solubility StudiesChemical and Physical Properties in Aqueous Solutions
Eliana Aparecida de Rezende Duek、Marco‐A. De Paoli、Marina Mastragostino1993-09-01Advanced Materials
Advantages of solid‐state electrochemical devices are the ease of production, no possibility of leakage, and no electrolyte evaporation. One result of the search for such a device is the electrochromic display sketched in the Figure, which uses polyaniline and Prussian Blue as the active electrochromic materials and a…
Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsTransition Metal Oxide Nanomaterials
Koiti Araki、Henrique E. Toma1993-09-01Journal of Coordination Chemistry
The synthesis and characterization of a new meso-tetrapyridylporphyrin (TPyP) modified with four [Ru(bipy)2Cl]+ groups is reported. Cyclic voltammograms of this species in N,N′-dimethylformamide exhibit three reversible waves at 0.92, −0.68 and −0.93 V versus SHE, ascribed to the ruthenium(III/II) redox couple, and to…
Electrochemical sensors and biosensorsPorphyrin and Phthalocyanine ChemistryElectrochemical Analysis and Applications
Suresh Baskaran、John W. Halloran1993-09-01Journal of the American Ceramic Society
The fibrous monolith microstructure consists of high aspect ratio polycrystalline cells of SiC separated by thin cell boundaries containing graphite. The SiC/100% graphite fibrous monolith has noncatastrophic fracture behavior, is damage tolerant, and is notch insensitive. The failure process is characterized by fract…
Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesAdvanced materials and composites