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Tunneling transfer of an electron in oxidation of the HS− ion by an I −3 complex in aqueous solution

  • Physical Chemistry
  • Chemical Equilibrium. Kinetics. Catalysis. Adsorption
  • Published:
Bulletin of the Russian Academy of Sciences, Division of chemical science Aims and scope

Abstract

Methods of chemical kinetics have been used in a study of the mechanism of hydrogen sulfide oxidation by iodine. It has been shown that the stage of electron transfer from HS− to the I /− 3 complex proceeds through a tunneling mechanism. A proposed “twinkling” model of the reaction mechanism provides an explanation for the observed experimental facts: the dependence of the rate constant on the acidity, viscosity, and ionic strength of the solution; the inverse temperature dependence of the reaction rate constant; the dependence of the reaction rate constant on the concentrations of iodide ion and maleic acid, which are not involved directly in the reaction.

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Authors
  1. A. V. Ufimtsev
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  2. N. V. Soroka
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  3. G. A. Bagiyan
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Additional information

B. P. Konstantinov Institute of Nuclear Physics, Russian Academy of Sciences, Gatchina 188350. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 3, pp. 522–536, March, 1992.

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Ufimtsev, A.V., Soroka, N.V. & Bagiyan, G.A. Tunneling transfer of an electron in oxidation of the HS− ion by an I −3 complex in aqueous solution. Russ Chem Bull 41, 410–421 (1992). https://doi.org/10.1007/BF00863053

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  • DOI: https://doi.org/10.1007/BF00863053

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