Mechanistic study of the gas-phase reaction of CH2FO2 radicals with HO2

T.J. Wallington; M.D. Hurley; W.F. Schneider; J. Sehested; O.J. Nielsen

doi:10.1016/0009-2614(93)E1466-T

Mechanistic study of the gas-phase reaction of CH₂FO₂ radicals with HO₂

T.J. Wallington, M.D. Hurley, W.F. Schneider, J. Sehested, O.J. Nielsen

Research output: Contribution to journal › Journal article › Research

Abstract

Fourier transform infrared spectroscopy was used to identify CH2FOOH and HC(O)F as products of the gas-phase reaction of CH1FO2 radicals with HO2 radicals. At 700 Torr and 295 +/- 2 K, branching ratios for the CH1FOOH forming channel, k(1a)/k(1) = 0.29 +/- 0.08 and the HC(O)F channel, k1b/k1 = 0.71 +/- 0.11 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. This result is discussed with respect to previous literature data and to computer models of atmospheric chemistry. As part of this work, the reactivity of Cl atoms towards CH2FCl and CH2FOOH was investigated; rate constants of k(Cl + CH2FCl) = (1.1 +/- 0.1) X 10(-3) and k(Cl + CH2FOOH) = (1.5 +/- 0.5) X 10(-3) cm(3) molecule(-1) s(-1) were determined.

Original language	English
Journal	Chemical Physics Letters
Volume	218
Issue number	1-2
Pages (from-to)	34-42
ISSN	0009-2614
DOIs	https://doi.org/10.1016/0009-2614(93)E1466-T
Publication status	Published - 1994

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@article{2210bb7f876e4a5485eda5a15131b06a,

title = "Mechanistic study of the gas-phase reaction of CH2FO2 radicals with HO2",

abstract = "Fourier transform infrared spectroscopy was used to identify CH2FOOH and HC(O)F as products of the gas-phase reaction of CH1FO2 radicals with HO2 radicals. At 700 Torr and 295 +/- 2 K, branching ratios for the CH1FOOH forming channel, k(1a)/k(1) = 0.29 +/- 0.08 and the HC(O)F channel, k1b/k1 = 0.71 +/- 0.11 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. This result is discussed with respect to previous literature data and to computer models of atmospheric chemistry. As part of this work, the reactivity of Cl atoms towards CH2FCl and CH2FOOH was investigated; rate constants of k(Cl + CH2FCl) = (1.1 +/- 0.1) X 10(-3) and k(Cl + CH2FOOH) = (1.5 +/- 0.5) X 10(-3) cm(3) molecule(-1) s(-1) were determined. ",

keywords = "Milj{\o}aspekter ved energi- og industriproduktion",

author = "T.J. Wallington and M.D. Hurley and W.F. Schneider and J. Sehested and O.J. Nielsen",

year = "1994",

doi = "10.1016/0009-2614(93)E1466-T",

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journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Mechanistic study of the gas-phase reaction of CH2FO2 radicals with HO2

AU - Wallington, T.J.

AU - Hurley, M.D.

AU - Schneider, W.F.

AU - Sehested, J.

AU - Nielsen, O.J.

PY - 1994

Y1 - 1994

N2 - Fourier transform infrared spectroscopy was used to identify CH2FOOH and HC(O)F as products of the gas-phase reaction of CH1FO2 radicals with HO2 radicals. At 700 Torr and 295 +/- 2 K, branching ratios for the CH1FOOH forming channel, k(1a)/k(1) = 0.29 +/- 0.08 and the HC(O)F channel, k1b/k1 = 0.71 +/- 0.11 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. This result is discussed with respect to previous literature data and to computer models of atmospheric chemistry. As part of this work, the reactivity of Cl atoms towards CH2FCl and CH2FOOH was investigated; rate constants of k(Cl + CH2FCl) = (1.1 +/- 0.1) X 10(-3) and k(Cl + CH2FOOH) = (1.5 +/- 0.5) X 10(-3) cm(3) molecule(-1) s(-1) were determined.

AB - Fourier transform infrared spectroscopy was used to identify CH2FOOH and HC(O)F as products of the gas-phase reaction of CH1FO2 radicals with HO2 radicals. At 700 Torr and 295 +/- 2 K, branching ratios for the CH1FOOH forming channel, k(1a)/k(1) = 0.29 +/- 0.08 and the HC(O)F channel, k1b/k1 = 0.71 +/- 0.11 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. This result is discussed with respect to previous literature data and to computer models of atmospheric chemistry. As part of this work, the reactivity of Cl atoms towards CH2FCl and CH2FOOH was investigated; rate constants of k(Cl + CH2FCl) = (1.1 +/- 0.1) X 10(-3) and k(Cl + CH2FOOH) = (1.5 +/- 0.5) X 10(-3) cm(3) molecule(-1) s(-1) were determined.

KW - Miljøaspekter ved energi- og industriproduktion

U2 - 10.1016/0009-2614(93)E1466-T

DO - 10.1016/0009-2614(93)E1466-T

M3 - Journal article

SN - 0009-2614

VL - 218

SP - 34

EP - 42

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2