David Clark、Benjamin J. Cromarty、A. Dilks1978-12-01Journal of Polymer Science Polymer Chemistry Edition
Abstract Nonempirical LCAO MO SCF computations (in the ΔSCF formalism) have been carried out of binding energies and relaxation energies for an extensive series of oxygen‐containing organic systems encompassing most of the common functionalities. The molecules for which experimental data are available for comparison d…
Free Radicals and AntioxidantsNonlinear Optical Materials ResearchPhotochemistry and Electron Transfer Studies
Abbas Pezeshk、Frederick T. Greenaway、Gershon Vincow1978-12-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectron paramagnetic resonance of low-spin cobalt(II) complexes: effect of axial ligation upon the ground stateAbbas Pezeshk, Frederick T. Greenaway, and Gershon VincowCite this: Inorg. Chem. 1978, 17, 12, 3421–3425Publication Date (Print):December 1, 1978Publication Histor…
Magnetism in coordination complexesMetal complexes synthesis and propertiesPorphyrin and Phthalocyanine Chemistry
D. A. Jones1978-12-01CORROSION
The corrosion rates of low alloy steel and carbon steel in 0.1 N NaCl were accelerated by factors of 4 to 6 when an alternating current density of 30 mA/cm2 (60 cps) was applied in dilute salt solutions purged with nitrogen. Tests with low frequency alternating anodic and cathodic current showed that both steels polar…
Non-Destructive Testing TechniquesHydrogen embrittlement and corrosion behaviors in metalsCorrosion Behavior and Inhibition
C. G. Barraclough、Geoffrey A. Lawrance、Peter A. Lay1978-12-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharacterization of binuclear .mu.-peroxo and .mu.-superoxo cobalt(III) amine complexes from Raman spectroscopyColin G. Barraclough, Geoffrey A. Lawrance, and Peter A. LayCite this: Inorg. Chem. 1978, 17, 12, 3317–3322Publication Date (Print):December 1, 1978Publication Hist…
Electrochemical Analysis and ApplicationsCorrosion Behavior and InhibitionMetal complexes synthesis and properties
Norikazu Takeda、Shohei Inoue1978-12-01Bulletin of the Chemical Society of Japan
Abstract α,β,γ,δ-Tetraphenylporphinatoaluminium methoxide reacts reversibly with carbon dioxide in the presence of 1-methylimidazole, and this carbon dioxide is activated to react with propylene oxide to produce propylene carbonate under atmospheric pressure and at room temperature.
Luminescence and Fluorescent MaterialsPorphyrin and Phthalocyanine ChemistryCovalent Organic Framework Applications
Robert E. Newnham、John Kramer、Walter A. Schulze 等 4 位作者1978-12-01Journal of Applied Physics
Chromium chrysoberyl undergoes a phase transformation from a paramagnetic state to a complex antiferromagnetic state at 28 K. The spiral spin structure of the antiferromagnetic state violates all the crystallographic symmetry elements, making Cr2BeO4 potentially ferroelectric. Chynoweth experiments conducted at low te…
Glass properties and applicationsCrystal Structures and PropertiesSolid-state spectroscopy and crystallography
Wayne A. Bough、W. L. Salter、A. C. M. Wu 等 4 位作者1978-12-01Biotechnology and Bioengineering
Abstract Ten chitosan products were manufactured from dry shrimp hulls under differing process conditions and compared to a commercially available product. Manufacturing variables tested were: alkali versus enzymatic deproteination; acid demineralization versus no treatment; air versus nitrogen atmosphere; 5 min vs. 1…
Aquaculture Nutrition and GrowthMicroplastics and Plastic PollutionNanocomposite Films for Food Packaging
K. Kanaya、Susumu Ono、Fumiko Ishigaki1978-12-01Journal of Physics D Applied Physics
The high yield of secondary electron emission from insulators due to electron bombardment may be the result of an increase of the depth of escape. The free-electron scattering theory is applied to the high energy of the primary beam, but it cannot be applied to the low energy of the secondary escaping beam because of…
X-ray Spectroscopy and Fluorescence AnalysisPlasma Diagnostics and ApplicationsElectron and X-Ray Spectroscopy Techniques
David S. Ginley、M. A. Butler1978-12-01Journal of The Electrochemical Society
Results are presented which show that the flatband potential ( V fb ) of a semiconducting cadmium sulfide ( CdS ) photoanode can be predicted from atomic electronegativity of its constituent atoms. This procedure, previously applied only to metal oxides, now appears generally applicable to any semiconductor‐electrolyt…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsElectrochemical Analysis and Applications
D. P. H. Hasselman1978-12-01Journal of Composite Materials
Expressions are derived for the effect of penny-shaped cracks of various orientations on the thermal conductivity of solid materials.
Advanced ceramic materials synthesisComposite Material MechanicsThermal properties of materials
H. A. Levy、George C. Lisensky1978-12-01Acta Crystallographica Section B
Single-crystal neutron-diffraction data with full-matrix least-squares refinements have yielded precise locations for all atoms (for the H atoms in particular), in both compounds. Hydrogen bonding with H atom sites disordered with equal occupancy, as previously postulated to be the source of zero-point entropy in the…
Solid-state spectroscopy and crystallographyCrystallography and molecular interactionsX-ray Diffraction in Crystallography
Russell Fraser、T.P. MacRae、E. Suzuki1978-12-01Journal of Applied Crystallography
Solvent makes a significant contribution to the diffracted intensity of crystals and fibres of large biological molecules. Allowance for this contribution must be made in the refinement of trial structures and an improved method is described for the calculation of solvent scattering.
X-ray Diffraction in CrystallographyEnzyme Structure and Function
K. Deuchert、Siegfried Hünig1978-12-01Angewandte Chemie
Ein allgemeines Strukturprinzip für organische Verbindungen, die zur zweistufigen Elektronenübertragung befähigt sind, geht aus der folgenden Reaktionssequenz hervor: Dabei können ein oder beide X durch Y⊖ ersetzt sein. In diesen Systemen besitzt der radikalische Partner oft sehr große thermodynamische Stabilität. Wah…
Polyoxometalates: Synthesis and ApplicationsOrganic and Molecular Conductors ResearchCoordination Chemistry and Organometallics
I. Halász、Kornél Martin1978-12-01Angewandte Chemie International Edition in English
Abstract A new, fast, and simple method based on size exclusion chromatography permits determination of the volumes of open and closed pores of rigid solids such as silica or porous glasses, together with the specific surface and the pore‐size distribution for pore diameters ranging from 10 to 4000Å. The results are i…
Material Dynamics and PropertiesMesoporous Materials and CatalysisGlass properties and applications
John A. Baumann、Dennis J. Salmon、Stephen T. Wilson 等 5 位作者1978-12-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic structure and redox properties of the clusters [Ru3O(CH3CO2)6L3]n+John A. Baumann, Dennis J. Salmon, Stephen T. Wilson, Thomas J. Meyer, and William E. HatfieldCite this: Inorg. Chem. 1978, 17, 12, 3342–3350Publication Date (Print):December 1, 1978Publication Hist…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryLanthanide and Transition Metal Complexes
A.K. Jonscher1978-12-01Philosophical Magazine B
Some dielectric materials with large densities of low-mobility charge carriers show an anomalous low-frequency dispersion of the real and imaginary components of the complex dielectric permittivity, both varying as ω n−1 , with n close to or equal to zero. This behaviour is likely to be found in any dielectric materia…
Ferroelectric and Piezoelectric MaterialsGlass properties and applicationsAcoustic Wave Resonator Technologies
Luis Ulloa Fernández de Sanmamed1978-12-01Materiales de Construccion
La crisis de la energía, que tomó gran importancia a partir de 1973, ha originado la aceleración de estudios y posibilitado el desarrollo de otras fuentes alternativas del petróleo. El aprovechamiento de la energía latente que tienen algunos materiales volcánicos, o subproductos de procesos industriales (escorias side…
José Manuel Fernández Paris1978-12-01Materiales de Construccion
Para apreciar la acción física de microfisuración que experimentan los hormigones, cuando se encuentran sometidos a esfuerzos de compresión, se emplean en la actualidad diversas técnicas, siendo las más utilizadas la prospección radiográfica, los métodos fotoelásticos, y la observación mediante microscopía.
Carmen Andrade Perdrix,、J. A. González1978-12-01Materiales de Construccion
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Equipo Editorial1978-12-01Materiales de Construccion