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Nitrosylmetalloporphyrins. 5. Molecular stereochemistry of nitrosyl(5,10,15,20-tetratolylporphinato)manganese(II) and nitrosyl(4-methylpiperidine)(5,10,15,20-tetraphenylporphinato)manganese(II)

W. Robert Scheidt、Keiichiro Hatano、G. A. Rupprecht 等 4 位作者1979-02-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNitrosylmetalloporphyrins. 5. Molecular stereochemistry of nitrosyl(5,10,15,20-tetratolylporphinato)manganese(II) and nitrosyl(4-methylpiperidine)(5,10,15,20-tetraphenylporphinato)manganese(II)W. Robert Scheidt, K. Hatano, G. A. Rupprecht, and P. L. PiciuloCite this: Inorg.…

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Quantitative analysis of multicomponent powders by full-profile refinement of Guinier–Hägg X-ray film data

Per Werner、S. Salomé、Gunnar Malmros 等 4 位作者1979-02-01Journal of Applied Crystallography

Full-profile analysis of microdensitometer-measured Guinier–Hägg X-ray powder film data (strictly monochromatized Cu Kα1 radiation) [see Malmros & Thomas (1977). J. Appl. Cryst. 10, 7–11] is here extended to treat a multicomponent system where two of the components are refinable. The method is demonstrated for the cas…

X-ray Spectroscopy and Fluorescence AnalysisNuclear Physics and ApplicationsX-ray Diffraction in Crystallography

Diffraction line broadening of crystals containing small-angle boundaries

M. Wilkens1979-02-01Journal of Applied Crystallography

The paper deals with a theoretical investigation of the shapes of the X-ray diffraction lines of crystals containing periodically distributed small-angle boundaries (SAB) of pure tilt character. The Fourier transforms of the diffraction lines are computed and subsequently subjected to a Warren–Averbach (WA) analysis.…

X-ray Diffraction in CrystallographySurface and Thin Film PhenomenaMaterial Properties and Failure Mechanisms

X-ray television area detectors for macromolecular structural studies with synchrotron radiation sources

U. W. Arndt、David J. Gilmore1979-02-01Journal of Applied Crystallography

Two-dimensional X-ray diffraction patterns may be recorded quantitatively by means of X-ray-to-electron converters which are scanned in a television-type raster scan. Detectors of this type are capable of operating over the whole range of counting rates from very low to higher than those with which other types of conv…

Enzyme Structure and FunctionAdvanced X-ray Imaging TechniquesX-ray Spectroscopy and Fluorescence Analysis

Electrical and optical properties of the system TiO2-xFx

S.N. Subbarao、Yikai Yun、R. Kershaw 等 5 位作者1979-02-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrical and optical properties of the system TiO2-xFxS. N. Subbarao, Y. H. Yun, R. Kershaw, K. Dwight, and A. WoldCite this: Inorg. Chem. 1979, 18, 2, 488–492Publication Date (Print):February 1, 1979Publication History Published online1 May 2002Published inissue 1 Februar…

Gas Sensing Nanomaterials and SensorsElectronic and Structural Properties of OxidesChemical and Physical Properties of Materials

Kinetic studies of the thermal decomposition of hydrazoic acid in shock waves

Okitsugu Kajimoto、T. Yamamoto、Takayuki Fueno1979-02-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEArticleNEXTKinetic studies of the thermal decomposition of hydrazoic acid in shock wavesO. Kajimoto, T. Yamamoto, and T. FuenoCite this: J. Phys. Chem. 1979, 83, 4, 429–435Publication Date (Print):February 1, 1979Publication History Published online1 May 2002Published inissue 1 February 19…

Chemical Reaction MechanismsThermal and Kinetic AnalysisChemical Reactions and Mechanisms

Microstructural evaluation of multicomponent ZnO ceramics

A. T. Santhanam、T. K. Gupta、W. G. Carlson1979-02-01Journal of Applied Physics

A microstructural evaluation was made of experimental non-Ohmic ZnO ceramics by optical, scanning, and transmission electron microscopy complemented with electron beam microprobe and x-ray analyses. Four crystalline phases were identified: a major phase of ZnO grains containing Co and Mn in solid solution and three mi…

ZnO doping and propertiesAdvancements in Solid Oxide Fuel CellsGas Sensing Nanomaterials and Sensors

Carrier transport in high-density polyethylene

T. Mizutani、Masayuki Ieda1979-02-01Journal of Physics D Applied Physics

Current peaks due to transient SCLC were observed both in high-density polyethylene (HD-PE) and in oxidised HD-PE in the temperature range 50-90 degrees C. From the time at which the current peak occurs, carrier mobilities ranging from 10 -11 to 10 -9 cm 2 V -1 s -1 were obtained. The mobility values obtained agree we…

High voltage insulation and dielectric phenomenaElectrochemical Analysis and ApplicationsElectrostatic Discharge in Electronics

Infrared spectroscopic study of the adsorption of isocyanic acid

F. Solymosi、Tamás Bánsági1979-02-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared spectroscopic study of the adsorption of isocyanic acidF. Solymosi and T. BansagiCite this: J. Phys. Chem. 1979, 83, 4, 552–553Publication Date (Print):February 1, 1979Publication History Published online1 May 2002Published inissue 1 February 1979https://pubs.acs.or…

Porphyrin and Phthalocyanine ChemistryVarious Chemistry Research TopicsPolydiacetylene-based materials and applications

Direct determination of barrier voltage in ZnO varistors

J. T. C. van Kemenade、R. K. Eijnthoven1979-02-01Journal of Applied Physics

Single barriers in a ZnO varistor are measured separately. The step voltage at a grain boundary is 3.6 V at 1 μA. No great differences could be found between samples obtained from several suppliers. In a SEM the barriers could be detected by the voltage-contrast method. By using electron-beam-induced currents the spot…

Advanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis

Effect of coagulation conditions on crystal modification of poly(p‐phenylene terephthalamide)

Kazutoshi Haraguchi、Tisato Kajiyama、Motowo Takayanagi1979-02-01Journal of Applied Polymer Science

Abstract Poly( p ‐phenylene terephthalamide)(PTTA) films were prepared from sulfuric acid solution with various coagulants. X‐ray diffraction and infrared absorption measurements revealed that the crystal structure of the film coagulated with water showed a new crystal modification II, which was different from the one…

Polymer crystallization and propertiesFiber-reinforced polymer compositesRecycling and Waste Management Techniques

CLAY MINERALS IN CANADIAN SOILS: THEIR ORIGIN, DISTRIBUTION AND ALTERATION

H. Kodama1979-02-01Canadian Journal of Soil Science

A literature survey was conducted to collect mineralogical data of Canadian soils. In the past 40 years, clay mineralogical data of varying precision have been reported for approximately 1200 samples from more than 380 pedons. Based on the data, (1) the distribution of clay minerals was examined physiographically, (2)…

Soil and Unsaturated FlowClay minerals and soil interactionsGeochemistry and Geologic Mapping

Application of the Mössbauer effect to the characterization of an amorphous tin-oxide system

Gary S. Collins、T. Kachnowski、N. Benczer-Koller 等 4 位作者1979-02-01Physical review. B, Condensed matter

M\"ossbauer, electron-micrography, and electron-diffraction studies were conducted on amorphous-tin-oxide samples prepared by reacting gaseous atomic tin with molecular oxygen and collecting the oxide on a 77-K substrate. The observed isomer shift, quadrupole splitting, and characteristic lattice temperatures deviate…

Transition Metal Oxide NanomaterialsCatalysis and Oxidation ReactionsMagneto-Optical Properties and Applications

The infrared optical properties of SiO2 and SiO2 layers on silicon

Herbert R. Philipp1979-02-01Journal of Applied Physics

The complex index of refraction N=n−ik for amorphous SiO2 is derived in the energy range 0.03–1.0 eV by Kramers-Kronig analysis of reflectance data. The results are used to compute the transmission, reflectance, and absorptivity of thin layers of SiO2 on Si substrates in the vicinity of the 0.14-eV (9 μ) lattice absor…

Glass properties and applicationsThin-Film Transistor TechnologiesSilicon Nanostructures and Photoluminescence

Sulfide Induced Corrosion of Copper Nickel Alloys

John P. Gudas、Harvey P. Hack1979-02-01CORROSION

The susceptibility of Cu-Ni alloys to accelerated corrosion in sea water containing low sulfide concentrations has been investigated. Test alloys included wrought 90/10 Cu-Ni, 70/30 Cu-Ni and Ni-Cu, plus cast 70/30 Cu-Ni. Sheet type specimen exposures were performed in fresh flowing sea water at a test velocity of 2.4…

Corrosion Behavior and InhibitionMetal and Thin Film MechanicsHydrogen embrittlement and corrosion behaviors in metals

PROFLAVIN CATALYZED PHOTOPRODUCTION OF HYDROGEN FROM ORGANIC COMPOUNDS

Alvin I. Krasna1979-02-01Photochemistry and Photobiology

Abstract— Methyl viologen was reduced by EDTA and other organic compounds when aqueous solutions of these compounds were irradiated near 440 nm in the presence of catalytic quantities of proflavin. The photoreduced methyl viologen was readily oxidized in the dark by the enzyme hydrogenase or platinum asbestos. When th…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesPorphyrin and Phthalocyanine Chemistry

The vibrational spectrum and adsorption site of CO on the Ru(001) surface

Gary E. Thomas、W. H. Weinberg1979-02-01The Journal of Chemical Physics

Vibrational spectra and LEED structures of CO on the Ru(001) surface were measured as a function of coverage at 100 K. The LEED patterns indicate that CO occupies a variety of asymmetric sites at high coverage, while the vibrational spectra show a single Ru–C stretching frequency (445 cm−1) and a single C–O stretching…

Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Neutron Scattering Study on the Incommensurate Phases in Ferroelectric Rb2ZnCl4 and K2ZnCl4

K. Gesi、Masamichi Iizumi1979-02-01Journal of the Physical Society of Japan

The satellite reflections at ( h , 0, l ±(1/3-δ)) in Rb 2 ZnCl 4 and K 2 ZnCl 4 have been studied by neutron scattering. Incommensurate structures (δ≠0) were observed in temrerature ranges of +30^° C ∼-81^° C for Rb 2 ZnCl 4 and of +130^° C ∼+280^° C for K 2 ZnCl 4 . The temperature dependence of the parameter δ was o…

Liquid Crystal Research AdvancementsGlass properties and applicationsSolid-state spectroscopy and crystallography

Commensurate-incommensurate transitions in rare-gas monolayers adsorbed on graphite and in layered charge-density-wave systems

Per Bak、David Mukamel、Jacques Villain 等 4 位作者1979-02-01Physical review. B, Condensed matter

Existing theories for commensurate-incommensurate transitions in one-dimensionally-modulated systems show that these transitions are continuous and are associated with domainwall formation. We consider the effect of domain-wall crossing in two-dimensionally modulated systems with hexagonal symmetry such as rare-gas la…

Physics of Superconductivity and MagnetismOrganic and Molecular Conductors ResearchSolid-state spectroscopy and crystallography