Theoretical and Experimental Chemistry

, Volume 5, Issue 6, pp 549–560 | Cite as

Relation between kinetic parameters for oxidation of substrates by pentavalent vanadium and electron structure

  • G. S. Nikolov
  • K. B. Yatsimirskii
Article

Abstract

The electron structure of two hypothetical aquo-oxo ions of pentavalent vanadium was calculated with account of Madelung energy in diagonal elements. It was shown that the theoretical energies of the electron transitions coincide with the positions of the bands in the absorption spectrum of the VO(OH)(H2O) 4 2+ ion. The accepted assignment of the bands in the absorption spectrum of VO(OH)(H2O) 4 2+ is confirmed by change in the position of the bands when the solvent is changed and also by correlation with polarographic data. An attempt is made to correlate the activation energy for oxidation of substrates by pentavalent vanadium with the ionization potentials and basicity constants of the substrates. It is shown that the correlations can be explained by the formation of charge-transfer complexes.

Keywords

Oxidation Activation Energy Absorption Spectrum Vanadium Kinetic Parameter 

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Copyright information

© Consultants Bureau 1972

Authors and Affiliations

  • G. S. Nikolov
    • 1
  • K. B. Yatsimirskii
    • 1
  1. 1.Kiev State UniversityUSSR

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