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Gallium-71 NMR studies of anionic gallium halide species in nonaqueous solution

Bruce R. McGarvey、Michael J. Taylor、Dennis G. Tuck1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGallium-71 NMR studies of anionic gallium halide species in nonaqueous solutionBruce R. McGarvey, Michael J. Taylor, and Dennis G. TuckCite this: Inorg. Chem. 1981, 20, 7, 2010–2013Publication Date (Print):July 1, 1981Publication History Published online1 May 2002Published i…

Luminescence Properties of Advanced MaterialsSolid-state spectroscopy and crystallographyInorganic Chemistry and Materials

Preparation and molecular stereochemistry of fluoro(meso-tetraphenylporphinato)iron(III)

Kazunori Anzai、Keiichiro Hatano、Young Ja Lee 等 4 位作者1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and molecular stereochemistry of fluoro(meso-tetraphenylporphinato)iron(III)Kazunori Anzai, Keiichiro Hatano, Young Ja Lee, and W. Robert ScheidtCite this: Inorg. Chem. 1981, 20, 7, 2337–2339Publication Date (Print):July 1, 1981Publication History Published onlin…

Metal complexes synthesis and propertiesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Investigation of Photoelectrochemical Corrosion of Semiconductors: II . Kinetic Analysis of Corrosion‐Competition Reactions on

Karl W. Frese、Marc Madou、S. Roy Morrison1981-07-01Journal of The Electrochemical Society

The model of photoelectrochemical corrosion‐stabilization of semiconductors has been extended. Detailed expressions for rate constants are given including capture cross sections and energy levels for hole capture. It is concluded from analysis of experimental data that the first hole in the rate‐limiting step is captu…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability

Synthesis and properties of tetraphenylporphyrin molecules containing heteroatoms other than nitrogen. 6. Electrochemical studies

Abraham Ulman、J. Manassen、Felix Frolow 等 4 位作者1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and properties of tetraphenylporphyrin molecules containing heteroatoms other than nitrogen. 6. Electrochemical studiesAbraham Ulman, Joost Manassen, Felix Frolow, and Dov RabinovichCite this: Inorg. Chem. 1981, 20, 7, 1987–1990Publication Date (Print):July 1, 1981…

Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresElectrochemical Analysis and Applications

TRANSIENT PHOTOCHEMISTRY OF SAFRANIN-O

Charles E. Baumgartner、H. H. Richtol、D.A. Aikens1981-07-01Photochemistry and Photobiology

We have characterized the spectra, acidity constants and decay kinetics of the triplet and semireduced radical species of Safranin-O. Between pH 3.0 and pH 10.6 there are three triplet species denoted (3)DH2(+2), (3)DH(+) and (3)D, the pK(sub a)s being 7.5 and 9.2. All three triplet species exhibit first order decay,…

Radical Photochemical ReactionsPhotochemistry and Electron Transfer StudiesPhotochromic and Fluorescence Chemistry

Dynamic Analysis of a Torsion Test Specimen Including Heat Conduction and Plastic Flow

Gordon R. Johnson1981-07-01Journal of Engineering Materials and Technology

This paper presents an analysis of a copper torsion test specimen exhibiting a thermal softening instability at a high strain rate. A consititutive relationship derived from test data includes strain hardening, strain rate effects, and thermal softening. This relationship is used to numerically simulate the thermal so…

Metal Forming Simulation TechniquesMetallurgy and Material FormingHigh-Velocity Impact and Material Behavior

Theory of structure and properties of cholesteric blue phases

R. M. Hornreich、S. Shtrikman1981-07-01Physical Review A

Using Landau theory, we show that the red shift of the primary Bragg reflection in cholesteric blue phases and the appearance of more than one cubic structure can be understood by including harmonics of the basic spatial frequency in the order parameter. A new nonsymmorphic bcc structure, having ${O}^{8}(I{4}_{1}32)$…

Liquid Crystal Research Advancements

Sensitivity of N-nitrosomethylurea-induced rat mammary tumors to cis-hydroxyproline, an inhibitor of collagen production.

Walter M. Lewko、Lance A. Liotta、Max S. Wicha 等 5 位作者1981-07-01PubMed

The growth of primary N-nitrosomethylurea-induced rat mammary tumors was depressed by cis-hydroxyproline (CHP). This growth arrest appeared to be related to the ability of CHP to inhibit the deposition of basement membrane collagen as based on the following observations: (a) in vitro and in vivo, tumor cells synthesiz…

Cancer, Hypoxia, and MetabolismCollagen: Extraction and CharacterizationBone and Dental Protein Studies

An Auger Electron Spectroscopic Study of Phosphorus Segregation in the Grain Boundaries of Nickel Base Alloy 600

M. Guttmann、Ph. Dumoulin、Nguyen Tan-Tai 等 4 位作者1981-07-01CORROSION

The grain boundary composition of nickel base alloy 600 has been studied by means of Auger electron spectroscopy. After being cathodically charged with hydrogen in a water saturated salt bath at 200 C, all the specimens could be intergranularly fractured in the Auger chamber. Phosphorus was the only element found to s…

Microstructure and mechanical propertiesCorrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metals

Resonance Raman spectra, excitation profiles, and infrared spectra of [N,N'-ethylenebis(salicylideniminato)]cobalt(II) in the solid state

Masako Suzuki、Takahiko Ishiguro、Muneteru Kozuka 等 4 位作者1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResonance Raman spectra, excitation profiles, and infrared spectra of [N,N'-ethylenebis(salicylideniminato)]cobalt(II) in the solid stateM. Suzuki, T. Ishiguro, M. Kozuka, and K. NakamotoCite this: Inorg. Chem. 1981, 20, 7, 1993–1996Publication Date (Print):July 1, 1981Publi…

Metal complexes synthesis and propertiesNonlinear Optical Materials ResearchProtein Interaction Studies and Fluorescence Analysis

Phase separation behavior of rubber‐modified epoxies

T. T. Wang、H. M. Zupko1981-07-01Journal of Applied Polymer Science

Abstract The compatibility and phase separation behavior of mixtures of the diglycidyl ether of bisphenol A and carboxyl‐terminated butadiene‐acrylonitrile copolymers were studied by means of light transmission, viscosity measurements, and optical microscopy. Cloud point measurements of the blends prior to curing show…

Advanced Polymer Synthesis and CharacterizationPolymer Nanocomposites and PropertiesPolymer composites and self-healing

Bonding in Ni(PH3)2(C2H4) and Ni(PH3)2(C2H2). Ab initio SCF-MO study

Kazuo Kitaura、Shigeyoshi Sakaki、Keiji Morokuma1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBonding in Ni(PH3)2(C2H4) and Ni(PH3)2(C2H2). Ab initio SCF-MO studyKazuo Kitaura, Shigeyoshi Sakaki, and Keiji MorokumaCite this: Inorg. Chem. 1981, 20, 7, 2292–2297Publication Date (Print):July 1, 1981Publication History Published online1 May 2002Published inissue 1 July 1…

Hydrogen Storage and MaterialsAdvanced Physical and Chemical Molecular InteractionsSpacecraft and Cryogenic Technologies

Substituted hemins as probes for structure-function relationships in horseradish peroxidase.

Robert K. DiNello、David Dolphin1981-07-01Journal of Biological Chemistry

Low temperature visible spectra of Compounds I from peroxidases reconstituted with protohemin, 2-formyl-4-vinyldeuterohemin, 2-vinyl-4-formyldeuterohemin, 2,4-dimethyldeuterohemin, and 2,4-diacetyldeuterohemin reveal that these Fe(IV) porphyrin pi-cation radicals take the 2A2u of peroxidase-type electronic ground stat…

Porphyrin and Phthalocyanine ChemistryHeme Oxygenase-1 and Carbon MonoxideHemoglobin structure and function

Reversible migration of an axial carbene ligand into an iron-nitrogen bond on a porphyrin. Implications for high oxidation states of heme enzymes and heme catabolism

Lechosław Latos‐Grażyński、Ru-Jen Cheng、Gerd N. La Mar 等 4 位作者1981-07-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReversible migration of an axial carbene ligand into an iron-nitrogen bond on a porphyrin. Implications for high oxidation states of heme enzymes and heme catabolismL. Latos-Grazynski, Ru-Jen Cheng, Gerd N. La Mar, and Alan L. BalchCite this: J. Am. Chem. Soc. 1981, 103, 14,…

Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsPorphyrin Metabolism and Disorders

Polymerization kinetics of rigid rodlike molecules: polycondensation of poly([benzo(1,2-d:5,4-d')bisoxazole-2,6-diyl]-1,4-phenylene)

D. B. Cotts、Guy C. Berry1981-07-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymerization kinetics of rigid rodlike molecules: polycondensation of poly([benzo(1,2-d:5,4-d')bisoxazole-2,6-diyl]-1,4-phenylene)David B. Cotts and Guy C. BerryCite this: Macromolecules 1981, 14, 4, 930–934Publication Date (Print):July 1, 1981Publication History Published…

Advanced Polymer Synthesis and CharacterizationEpoxy Resin Curing ProcessesSynthesis and properties of polymers

Age-related changes in human dermal elastic fibres

Takuo Tsuji、Toshio Hamada1981-07-01British Journal of Dermatology

Age-related changes in human dermal elastic fibres were studied by scanning (SEM) and transmission (TEM) electron microscopy. The SEM findings showed an increase in the complexity of shape and arrangement of the fibres including flattening and branching, an increase in the roughness of the surface, and a decrease in i…

Textile materials and evaluationsSkin and Cellular Biology Research

Photoelectrochemical etching of p-GaAs

F. W. Ostermayer、Paul A. Kohl1981-07-01Applied Physics Letters

A photoelectrochemical method for etching p-GaAs is reported. The method overcomes the apparent stability of GaAs to reductive decomposition by switching the potential of the p-GaAs between a value at which photogenerated electrons reduce the surface to Ga and As3−, and a more positive value at which the majority carr…

Semiconductor materials and devicesGa2O3 and related materialsElectronic and Structural Properties of Oxides

Blue phases of cholesteryl nonanoate

S. Meiboom、M. Sammon1981-07-01Physical Review A

The transformation on heating of an ordinary (helical) cholesteric liquid crystal (CHOL) into the isotropic phase (ISO) often occurs via a number of intermediate "blue" phases. We find the following scheme of phase transitions in cholesteryl nonanoate: $\mathrm{CHOL}\underset{91.35}{\ensuremath{\rightarrow}}\mathrm{BP…

Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsMolecular spectroscopy and chirality

Hydrolytic polymerization of chromium(III). 1. Two dimeric species

Mary Louis Thompson、Robert E. Connick1981-07-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrolytic polymerization of chromium(III). 1. Two dimeric speciesMary Thompson and Robert E. ConnickCite this: Inorg. Chem. 1981, 20, 7, 2279–2285Publication Date (Print):July 1, 1981Publication History Published online1 May 2002Published inissue 1 July 1981https://pubs.acs…

Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesNanomaterials for catalytic reactions

Reactive magnetron sputtering of ZnO

B.T. Khuri-Yakub、J.G. Smits、Troy W. Barbee1981-07-01Journal of Applied Physics

A planar magnetron with a zinc target is used to sputter zinc oxide in an oxygen atmosphere. Highly oriented zinc oxide films are obtained on a variety of subtrates such as gold, aluminum, platinum, quartz, and oxidized silicon. The sputtering rate is typically 10–20 μm/h for a substrate temperature of 450–500 °C, a s…

ZnO doping and propertiesAcoustic Wave Resonator TechnologiesMagnesium Oxide Properties and Applications