Formation of Hydrogen Polyoxides As Constituents of Peroxy Radical Condensate upon Low-Temperature Interaction of Hydrogen Atoms with Liquid Ozone

The composition of low-temperature condensates obtained by the reaction of hydrogen atoms with liquid ozone has been determined from the Raman spectra and data on the molar ratio of O2 to H2O2 in the decomposition products. The main constituents are hydrogen tetroxide H2O4, trioxide H2O3, and peroxi...

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Published inThe journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Vol. 118; no. 1; pp. 62 - 69
Main Authors Levanov, Alexander V, Isaykina, Oksana Ya, Antipenko, Ewald E, Lunin, Valerii V
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 09.01.2014
Subjects
Condensates
Constituents
Diffusion layers
Formations
Hydrogen atoms
Liquids
Ozone
Reaction kinetics
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Summary:The composition of low-temperature condensates obtained by the reaction of hydrogen atoms with liquid ozone has been determined from the Raman spectra and data on the molar ratio of O2 to H2O2 in the decomposition products. The main constituents are hydrogen tetroxide H2O4, trioxide H2O3, and peroxide H2O2 in comparable amounts and also water H2O. The mechanism and quantitative kinetic model of their formation have been proposed. H2O4, H2O3, and H2O2 are formed in the diffusion-controlled reactions between OH and HO2 in the liquid ozone layer and stabilized by transfer to the solid phase. OH and HO2 radicals are generated via a sequence of the reactions initiated by the interaction H + O3(liq). The model adequately reproduces the properties of the real condensates.
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ISSN:1089-5639
1520-5215
DOI:10.1021/jp410938b