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We have measured the hydrogen and fluorine nuclear magnetic resonance signals in single crystals of CuF 2 ⋅2H 2 O. The hyperfine interaction between the fluorine nucleus and the magnetic electrons has been separated into isotropic and anisotropic components which have been evaluated. The Néel...
Mercuric oxide exists in two forms, the red and the yellow oxides. Magnetic susceptibility determinations showed no appreciable difference between the two oxides; the red one has a mass susceptibility of (—0.221 7 ±0.0002)⋅10 —6 emu/g, while the yellow one has a slightly lower mass...
A method is discussed for obtaining quantitative measurements of long‐range NMR shielding effects in molecules based on the theory of Ramsey as extended by McConnell. These effects are shown to arise principally from the diamagnetic part of the magnetic susceptibility of the individual bonds...
The analysis of broad bands in the polarized electronic spectra of transition metal ions in crystals is discussed. The band of cobalt(III) acetylacetonate due to the transition 1 T 1 ← 1 A 1 is found to be split by the trigonal field into components at 16 200 cm —1 ( 1 A 2 ) and at 17 000 cm...
Experiments have been carried out on the photolysis of methyl azide and methyl‐ d 3 azide at high dilution in solid argon (4.2°K) and carbon dioxide (∼50°K). Photolysis of these species in argon and carbon dioxide matrices results in the appearance of a number of new spectral features in...
Hydrogen atoms were produced by the mercury‐photosensitized decomposition of n ‐butane at 435±5 mm pressure and at 23.5±1°C. By introducing known amounts of olefine, the rate of addition of hydrogen atoms to the olefine could be measured relative to the rate of abstraction from the n...
The results of further studies of the mercury photosensitized reactions at room temperature of n ‐butane and of its mixtures with nitrous oxide are reported. The importance of a self‐scavenging process responsible for low quantum yields of hydrogen at finite conversions has been demonstrated...
Electrical conductivity and thermoelectric power measurements have been made on nonstoichiometric UO 2 at temperatures of 500–1150°C. The conductivity data in the single phase UO 2+ x region can be represented by the equation σ ( ohmcm ) − 1 = ( 3.8 × 1 0 6 ) ∕ T ( 2 x ) ( 1 − 2 x )...
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