FTIR product study of the self-reaction of CH2ClCH2O2 radicals in air at 295 K

Timothy J. Wallington, Jean M. Andino, Steven M. Japar

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Fourier transform infrared spectroscopy was used to identify and quantify products of the self-reaction of chloroethylperoxy radicals, CH2ClCH2O2, formed in the photolysis of Cl2/C2H2 mixtures in 700 Torr total pressure of synthetic air at 295 K. From these measurements, branching ratios for the reaction channels (1a) and (1b), CH2ClCH2O2 + CH2ClCH2O2 → 2CH2ClCH2O + O2 and CH2ClCH2O2 + CH2ClCH2O2 → CH2ClCHO + CH2ClCH2OH + O2, respectively, of k1a/(k1a + k1b) = 0.69 and k1b/(k1a + k1b) = 0.31 were established together with an upper limit for the rate of the reaction CH2ClCH2O2 + HO2 → CH2ClCH2O2H + O2. Additionally, using the relative rate technique, the rate constant for the reaction of Cl atoms with CH2ClCH2OH has been determined to be (3.01 ± 0.22) × 10-11 cm3 molecule-1 s-1.

Original languageEnglish (US)
Pages (from-to)189-194
Number of pages6
JournalChemical Physics Letters
Volume165
Issue number2-3
DOIs
StatePublished - Jan 12 1990
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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