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

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

doi:10.1016/0009-2614(90)85427-E

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 journal › Article › peer-review

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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 k_1a/(k_1a + k_1b) = 0.69 and k_1b/(k_1a + k_1b) = 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 language	English (US)
Pages (from-to)	189-194
Number of pages	6
Journal	Chemical Physics Letters
Volume	165
Issue number	2-3
DOIs	https://doi.org/10.1016/0009-2614(90)85427-E
State	Published - Jan 12 1990
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "FTIR product study of the self-reaction of CH2ClCH2O2 radicals in air at 295 K",

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.",

author = "Wallington, {Timothy J.} and Andino, {Jean M.} and Japar, {Steven M.}",

year = "1990",

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doi = "10.1016/0009-2614(90)85427-E",

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T1 - FTIR product study of the self-reaction of CH2ClCH2O2 radicals in air at 295 K

AU - Wallington, Timothy J.

AU - Andino, Jean M.

AU - Japar, Steven M.

PY - 1990/1/12

Y1 - 1990/1/12

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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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 2-3

ER -

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

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