Showing papers on "Valency published in 1970"
15 citations
TL;DR: In this article, the effect of the optical displacement on the vibrational absorption of a charged impurity in valency crystals was investigated and it was shown that it does not affect the previous conclusions.
Abstract: The vibrational absorption of a charged impurity in valency crystals has recently been discussed by the authors. It was concluded that the absorption by the impurity is determined mainly by non- electrostatic short-range effects, while the actual charge on the impurity is only of secondary importance. A part of this argument was based on a relation which contained the photoelastic constants of the pure valency crystals; in that relation the fact was neglected that in a diamond lattice an xy shear induces an 'optical' displacement in the z direction and that the measured photoelastic constant p44 includes the effect of this optical displacement. In the present paper the effect of the optical displacement is investigated and it is shown that it does not affect the previous conclusions.
9 citations
TL;DR: In this article, the main species formed in solution when sodium tungstate is acidified to pH 1.5 was shown to be reduced to the extent of 1 in every 6 atoms of tungsten being reduced from the +6 to the +5 valency states.
8 citations
TL;DR: In this article, the infra-red and Raman spectra of solid tetrakistrichlorophosphinenickel, Ni(PCl 3 ) 4, and the behavior of the molecule in solution in organic solvents are investigated.
7 citations
6 citations
5 citations
TL;DR: In this article, the heat capacity of ammonium hexabromohypoantimonate, a mixed valency compound, was determined between 70 and 300 K and two anomalous regions were observed at 212 and 236 K, each with an entropy increment of 1 2 R ln2.
2 citations
2 citations
TL;DR: In this article, homogeneous solid solutions have been obtained in the complete composition range for the HgSxTe1−x system, the variation in the lattice parameter obeying Vegard's law.
Abstract: Homogeneous solid solutions have been obtained in the complete composition range for the HgSxTe1−x system, the variation in the lattice parameter obeying Vegard's law. The study of the electrical conductivity, Hall coefficient, electron mobility and Seebeck coefficients in the range 77 to 350° K indicated a transition from semiconductor behaviour (for samples with small x) to “metallic” behaviour (high x-values) due to the increase in the overlap between the valency and conduction bands.
1 citations
TL;DR: In this paper, the powerful inhibiting action of variable valency metals with urethanes in the oxidation of ethylbenzene has been revealed, and it has been shown that the urethane is a powerful inhibitor of the complex.
Abstract: The powerful inhibiting action of complexes of variable valency metals with urethanes in the oxidation of ethylbenzene has been revealed.