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Proceedings Paper

Chlorine and bromine oxides: synthesis, structure, and role in heterogeneous processes of stratospheric ozone decomposition
Author(s): S. V. Savilov; T. V. Yagodovskaya; A. V. Zosimov; Valerii V. Lunin
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Paper Abstract

Heterogeneous chemical reaction of ozone with HBr and HCl adsorbed on the ice surface have been investigated under the temperatures 77-223 K. The process occurs immediately with formation of dark brown, gold-yellow and yellow-orange colored condensates in the case of HBr and red condensate with HCl. Accordingly to low temperature IR-spectroscopy in the case of hydrogen chloride the most thermodynamically stable ClO2 is the dominant product of the reaction. In the csae of HBr Br2O forms initially. Then it suffers further sequential oxidation to Br2O3, BrO2 (Br2O4) and Br2O5. The optimization of the geometry of chlorine and bromine oxides mentioned above, has been performed using ab initio quantum mechanical calculations.

Paper Details

Date Published: 27 March 2003
PDF: 6 pages
Proc. SPIE 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean, (27 March 2003); doi: 10.1117/12.497167
Show Author Affiliations
S. V. Savilov, M.V. Lomonosov Moscow State Univ. (Russia)
T. V. Yagodovskaya, M.V. Lomonosov Moscow State Univ. (Russia)
A. V. Zosimov, M.V. Lomonosov Moscow State Univ. (Russia)
Valerii V. Lunin, M.V. Lomonosov Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 5026:
Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean
Gennadii G. Matvienko; Vladimir P. Lukin, Editor(s)

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