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Kinetics and Catalysis

, Volume 59, Issue 2, pp 123–127 | Cite as

Self-Organization of a Binuclear Ruthenium Complex to Tetra- and Octanuclear Catalysts for Water Oxidation for “Artificial Photosynthesis”

  • Z. M. Dzhabieva
  • M. L. Temnova
  • T. S. Dzhabiev
Article
  • 45 Downloads

Abstract

The kinetics and mechanism of the action of tetra- and octanuclear ruthenium catalysts for water oxidation with Ce(IV) compounds in “artificial photosynthesis” have been studied. These catalysts are formed from a complex K4[Ru2(SO4)2(μ-SO4)2(μ-O)2] · 2H2O in an acidic medium via its self-organization. A tetranuclear adamantane-like cluster Ru4O6 is obtained during the dimerization of a binuclear complex and catalyzes the four-electron water oxidation to an oxygen molecule. An octanuclear cluster Ru8O12 is formed during the tetramerization of a binuclear complex and catalyzes the eight-electron water oxidation to an oxozone molecule O4, which readily splits to two oxygen molecules.

Keywords

binuclear ruthenium complex and its self-organization tetra- and octanuclear clusters catalytic water oxidation with cerium(IV) compounds 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • Z. M. Dzhabieva
    • 1
  • M. L. Temnova
    • 1
  • T. S. Dzhabiev
    • 1
  1. 1.Institute of Problems of Chemical PhysicsRussian Academy of SciencesChernogolovka, Moscow oblastRussia

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