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 journalArticle

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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
Pages (from-to)189-194
Number of pages6
JournalChemical Physics Letters
Volume165
Issue number2-3
DOIs
Publication statusPublished - Jan 12 1990

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Photolysis
Rate constants
Atoms
Molecules
air
products
Air
photolysis
infrared spectroscopy
atoms
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

FTIR product study of the self-reaction of CH2ClCH2O2 radicals in air at 295 K. / Wallington, Timothy J.; Andino, Jean M.; Japar, Steven M.

In: Chemical Physics Letters, Vol. 165, No. 2-3, 12.01.1990, p. 189-194.

Research output: Contribution to journalArticle

Wallington, Timothy J. ; Andino, Jean M. ; Japar, Steven M. / FTIR product study of the self-reaction of CH2ClCH2O2 radicals in air at 295 K. In: Chemical Physics Letters. 1990 ; Vol. 165, No. 2-3. pp. 189-194.
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N2 - 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.

AB - 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.

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