Mechanism of the Reaction of Xenon Tetraoxide with Hydrogen:
A Photochemical Reaction

N. N. Aleinikov, G. K. Vasil’ev, S. A. Kashtanov, E. F. Makarov, and Yu. A. Chernyshev

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia

Received June 4, 1999

Abstract—The dependence of the rate of a photochemical reaction of XeO₄ with H₂ on the concentrations of H₂
and the diluent gases He and CO₂ is studied at room temperature. The results are compared with the data for the
dark reaction. A mechanism with the elementary energetic branched-chain reaction O(v) + XeO₄ O +
+XeO₃ is proposed to explain the results of the study.

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