Chlorine and bromine oxides: synthesis, structure, and role in heterogeneous processes of stratospheric ozone decomposition

S. V. Savilov; T. V. Yagodovskaya; A. V. Zosimov; Valerii V. Lunin

doi:10.1117/12.497167

27 March 2003 Chlorine and bromine oxides: synthesis, structure, and role in heterogeneous processes of stratospheric ozone decomposition

S. V. Savilov, T. V. Yagodovskaya, A. V. Zosimov, Valerii V. Lunin

Author Affiliations +

Proceedings Volume 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean; (2003) https://doi.org/10.1117/12.497167
Event: Ninth Joint International symposium on Atmospheric and Ocean Optics, 2002, Tomsk, Russian Federation

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.

Citation Download Citation

S. V. Savilov, T. V. Yagodovskaya, A. V. Zosimov, and Valerii V. Lunin "Chlorine and bromine oxides: synthesis, structure, and role in heterogeneous processes of stratospheric ozone decomposition", 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); https://doi.org/10.1117/12.497167

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