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Resonance Raman studies of bis(pyridine) adducts of iron(II), ruthenium(II), and osmium(II) octaethylporphyrins. Effects of heavy-metal substitution on porphyrin and axial-ligand vibrational and electronic properties

G. Alan Schick、David F. Bocian1984-03-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResonance Raman studies of bis(pyridine) adducts of iron(II), ruthenium(II), and osmium(II) octaethylporphyrins. Effects of heavy-metal substitution on porphyrin and axial-ligand vibrational and electronic propertiesG. Alan Schick and David F. BocianCite this: J. Am. Chem. S…

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

Resolution of a structural disorder through apparently inconsistent x-ray diffraction and EXAFS data: structure of the new layered system manganese copper phosphorus sulfide (Mn1-xCu2x)PS3 (x = 0.13)

Y. Mathey、Alain Michalowicz、P. Toffoli 等 4 位作者1984-03-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResolution of a structural disorder through apparently inconsistent x-ray diffraction and EXAFS data: structure of the new layered system manganese copper phosphorus sulfide (Mn1-xCu2x)PS3 (x = 0.13)Y. Mathey, A. Michalowicz, P. Toffoli, and G. VlaicCite this: Inorg. Chem. 1…

Crystal Structures and PropertiesIron-based superconductors researchSurface and Thin Film Phenomena

Effect of Interfacial Bonding on the Self-Adhesion of SBR and Neoprene

Anil K. Bhowmick、A. N. Gent1984-03-01Rubber Chemistry and Technology

Abstract When two elastomer layers are partially crosslinked in contact with each other, the strength of adhesion increases. This effect has now been studied for simple vulcanizates of SBR and for CR vulcanizates crosslinked with sulfur and/or oxide linkages. Under threshold conditions, e.g. , at high temperatures and…

Advanced Sensor and Energy Harvesting MaterialsPolymer Nanocomposites and PropertiesSilicone and Siloxane Chemistry

Thermal unimolecular decomposition of glyoxal

Ko Saito、Terumitsu Kakumoto、Ichiro Murakami1984-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal unimolecular decomposition of glyoxalKo Saito, Terumitsu Kakumoto, and Ichiro MurakamiCite this: J. Phys. Chem. 1984, 88, 6, 1182–1187Publication Date (Print):March 1, 1984Publication History Published online1 May 2002Published inissue 1 March 1984https://pubs.acs.or…

Advanced Chemical Physics StudiesInorganic and Organometallic ChemistryThermal and Kinetic Analysis

Site-symmetry restrictions on thermal-motion-tensor coefficients up to rank 8

W. F. Kuhs1984-03-01Acta Crystallographica Section A Foundations of Crystallography

An extension of the tables for the site-symmetry restrictions on the thermal-motion-tensor coefficients to include tensors up to rank 6 (up to rank 8 for cubic, hexagonal, tetragonal and trigonal site symmetries) is presented. The dependence relationships of these symmetric polar tensors are calculated in their natura…

X-ray Diffraction in Crystallography

Elastomeric Tetramethylene-Ethylethylene-Acrylonitrile Copolymers

A. H. Weinstein1984-03-01Rubber Chemistry and Technology

Abstract Elastomeric tetramethylene-ethylethylene-acrylonitrile (TEAN) copolymers were prepared by quantitative selective hydrogenation of emulsion NBR polymers in solution in presence of a triphenylphosphine-liganded rhodium salt catalyst. Completeness of hydrogenation at low pressure required appreciable excess of t…

Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesFiber-reinforced polymer composites

The incapacitative effects of exposure to the thermal decomposition products of polyurethane foams

David Purser、Patricia Grimshaw1984-03-01Fire and Materials

Abstract The mechanisms of incapacitation resulting from exposures to the thermal decomposition products of flexible and rigid polyurethane foams (PUF) were studied over a range of different temperatures under pyrolytic or non‐flaming oxidative decomposition conditions. Individual cynomolgus monkeys were exposed to at…

Flame retardant materials and properties

Radiation vulcanization of natural rubber latex with polyfunctional monomers

Keizo Makuuchi、Miyuki Hagiwara1984-03-01Journal of Applied Polymer Science

Abstract Natural rubber latex was irradiated with γ‐rays from Co‐60 in the presence of polyfunctional monomers to accelerate crosslinking of rubber molecules. Hydrophobic monomers were more effective in accelerating the vulcanization than were hydrophilic monomers. This was ascribed to high solubility of hydrophobic m…

Polymer Nanocomposites and PropertiesSynthesis and properties of polymersSilicone and Siloxane Chemistry

X-ray photoemission of polynuclear aromatic carbon

T. T. P. Cheung1984-03-01Journal of Applied Physics

The evolution of the C(1s) x-ray photoelectron spectrum is examined as a function of the size of the polynuclear aromatic molecules. The transition from a symmetric line shape to an asymmetric one occurs in the narrow range of the layer size between 10 and 22 Å. It is shown that the asymmetry reflects the area of the…

Advanced Chemical Physics StudiesGraphene research and applicationsElectron and X-Ray Spectroscopy Techniques

The generating function for coincidence site lattices in the cubic system

H. Grimmer1984-03-01Acta Crystallographica Section A Foundations of Crystallography

The derivation of the generating function given by Bleris & Delavignette [Acta Cryst. (1981), A37, 779- 786] is simplified and made rigorous. It is shown that their main result can also be deduced directly from Grimmer [Acta Cryst. (1974), A30, 685-688]. The following applications of the generating function are descri…

Rare-earth and actinide compoundsQuasicrystal Structures and PropertiesX-ray Diffraction in Crystallography

Breakdown of Passivity of Nickel by Fluoride: I . Electrochemical Studies

Bernd Löchel、Hans‐Henning Strehblow、Masao Sakashita1984-03-01Journal of The Electrochemical Society

The attack of fluoride on passive nickel has been studied in strongly acidic solutions and weakly acidic and alkaline buffers. Two main potential ranges with different kinetics of metal dissolution were found. In the whole passive range, the corrosion current density is increased. Up to 1.1V, the transfer of the Ni 2+…

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

Copolymers of 1,1‐difluoroethene with tetrafluoroethene, chlorotrifluoroethene, and bromotrifluoroethene

Giovanni Moggi、Piergiorgio Bonardelli、J. C. J. Bart1984-03-01Journal of Polymer Science Polymer Physics Edition

Abstract Copolymers of 1,1‐difluoroethene with tetrafluoroethene, chlorotrifluoroethene, and bromotrifluoroethene have been prepared by emulsion polymerization, and their crystallinity has been investigated by means of x‐ray diffraction. The results are discussed in relation to copolymer composition and structure.

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesSynthesis and properties of polymers

Nonisothermal Kinetics of Crystal Growth from Preexisting Nuclei

Takeo Ozawa1984-03-01Bulletin of the Chemical Society of Japan

Abstract Fundamental kinetic equations for nonisothermal crystal growth from preexisting nuclei are derived, by introducing a concept of reduced time. A method of kinetic analysis of thermoanalytical data of these processes is proposed, and all kinetic parameters can be estimated by the method, so that the process pro…

Energetic Materials and CombustionThermal and Kinetic AnalysisChemical Thermodynamics and Molecular Structure

Using variable charge characteristics to understand the exchangeable cation status of oxic soils

GP Gillman1984-03-01Soil Research

The model of Uehara and Gillman was used to estimate the amounts of permanent surface charge, and variable surface charge at soil pH, in two soils from the high rainfall region of coastal Queensland. For each soil series, samples from virgin rain-forest were compared with soil collected from nearby sugarcane fields. O…

Soil and Unsaturated FlowClay minerals and soil interactionsIron oxide chemistry and applications

Reactions of diaminoalkanes with bismaleimides: Synthesis of some unusual polyimides

Jerry E. White、Mark D. Scaia、Deborah A. Snider1984-03-01Journal of Applied Polymer Science

Abstract Michael additions of the secondary diamines N , N ′‐dimethyl‐1,6‐hexanediamine ( 14 ) or piperazine to the electrophilic carbon–carbon double bonds of N , N ′‐bismaleimido‐4,4′‐diphenylmethane ( 2 ) or N , N ′‐bismaleimido‐1,8‐octane ( 4 ) afford four unusual, high‐molecular‐weight (η inh = 0.49–2.16 dL/g) po…

Epoxy Resin Curing ProcessesSynthetic Organic Chemistry MethodsSynthesis and properties of polymers

Catalytic oxidation of carbon monoxide over ruthenium/silicon dioxide. An in situ infrared and kinetic study

János Kiss、Richard D. Gonzalez1984-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic oxidation of carbon monoxide over ruthenium/silicon dioxide. An in situ infrared and kinetic studyJanos T. Kiss and Richard D. GonzalezCite this: J. Phys. Chem. 1984, 88, 5, 892–897Publication Date (Print):March 1, 1984Publication History Published online1 May 2002…

Catalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Theory of Three-Dimensional Orderings of Charge-Density Waves in 1T-TaX2 (X: S, Se)

Kazuo Nakanishi、Hiroyuki Shiba1984-03-01Journal of the Physical Society of Japan

Three-dimensional structures of charge-density waves in 1T-Ta dichalcogenides are studied on the basis of a phenomenological free energy, in which interlayer couplings up to the second neighbor layer are considered. Special attention is paid to the commensurate (C) and striped discommensurate (DC) states. Several stab…

2D Materials and ApplicationsMolecular Junctions and NanostructuresOrganic and Molecular Conductors Research

Electron spin resonance study of electrochemically generated polythiophene and derivatives

G. Tourillon、Didier Gourier、Françis Garnier 等 4 位作者1984-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEArticleNEXTElectron spin resonance study of electrochemically generated polythiophene and derivativesG. Tourillon, D. Gourier, F. Garnier, and D. VivienCite this: J. Phys. Chem. 1984, 88, 6, 1049–1051Publication Date (Print):March 1, 1984Publication History Published online1 May 2002Publis…

Conducting polymers and applications

S2 .fwdarw. S0 fluorescence of some metallotetraphenylporphyrins

Yutaka Kurabayashi、Kôichi Kikuchi、Hiroshi Kokubun 等 5 位作者1984-03-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTS2 .fwdarw. S0 fluorescence of some metallotetraphenylporphyrinsYutaka Kurabayashi, Koichi Kikuchi, Hiroshi Kokubun, Youkoh Kaizu, and Hiroshi KobayashiCite this: J. Phys. Chem. 1984, 88, 7, 1308–1310Publication Date (Print):March 1, 1984Publication History Published online1…

Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies

Primary hydroperoxidation in low-density polyethylene

René Arnaud、J.Y. Moisan、Jacques Lemaire1984-03-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPrimary hydroperoxidation in low-density polyethyleneRene Arnaud, Jean Yves Moisan, and Jacques LemaireCite this: Macromolecules 1984, 17, 3, 332–336Publication Date (Print):March 1, 1984Publication History Published online1 May 2002Published inissue 1 March 1984https://pubs…

Advanced Polymer Synthesis and CharacterizationPolymer Science and PVC