Pressure dependence of the reaction C2H5+O2

E. W. Kaiser; T. J. Wallington; J. M. Andino

doi:10.1016/0009-2614(90)85616-K

Pressure dependence of the reaction C₂H₅+O₂

E. W. Kaiser, T. J. Wallington, J. M. Andino

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Abstract

The rate constant of the reaction C₂H₅+O₂→products, k₁, has been measured as a function of pressure (3-1500 Torr) relative to that of C₂H₅+Cl₂→C₂H₅Cl+Cl, k₂ at 298 K in three diluents (N₂, He, or SF₆). Ethyl radicals were generated by UV irradiation of Cl₂, C₂H₆, O₂, N₂ (He, SF₆) mixtures. Using the literature value k₁=2.9×10^-12 cm³/molecule s at 5 Torr to calibrate the relative rate study, the rate constants at the high and low pressure (He diluent) limits for C₂H₅+O₂+M=C₂H₅O₂+M, k_1a, are (k_1a)_∞=9.2(±0.9)×10^-12 cm³/molecule s and (k_1a)₀=6.5(±2.0)×10^-29 cm⁶/molecule² s.

Original language	English (US)
Pages (from-to)	309-313
Number of pages	5
Journal	Chemical Physics Letters
Volume	168
Issue number	3-4
DOIs	https://doi.org/10.1016/0009-2614(90)85616-K
State	Published - May 4 1990
Externally published	Yes

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Physics and Astronomy(all)
Physical and Theoretical Chemistry

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@article{a8bbcb10cff440bba3b2a94cbe1f9ab6,

title = "Pressure dependence of the reaction C2H5+O2",

abstract = "The rate constant of the reaction C2H5+O2→products, k1, has been measured as a function of pressure (3-1500 Torr) relative to that of C2H5+Cl2→C2H5Cl+Cl, k2 at 298 K in three diluents (N2, He, or SF6). Ethyl radicals were generated by UV irradiation of Cl2, C2H6, O2, N2 (He, SF6) mixtures. Using the literature value k1=2.9×10-12 cm3/molecule s at 5 Torr to calibrate the relative rate study, the rate constants at the high and low pressure (He diluent) limits for C2H5+O2+M=C2H5O2+M, k1a, are (k1a)∞=9.2(±0.9)×10-12 cm3/molecule s and (k1a)0=6.5(±2.0)×10-29 cm6/molecule2 s.",

author = "Kaiser, {E. W.} and Wallington, {T. J.} and Andino, {J. M.}",

year = "1990",

month = may,

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doi = "10.1016/0009-2614(90)85616-K",

language = "English (US)",

volume = "168",

pages = "309--313",

journal = "Chemical Physics Letters",

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publisher = "Elsevier",

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TY - JOUR

T1 - Pressure dependence of the reaction C2H5+O2

AU - Kaiser, E. W.

AU - Wallington, T. J.

AU - Andino, J. M.

PY - 1990/5/4

Y1 - 1990/5/4

N2 - The rate constant of the reaction C2H5+O2→products, k1, has been measured as a function of pressure (3-1500 Torr) relative to that of C2H5+Cl2→C2H5Cl+Cl, k2 at 298 K in three diluents (N2, He, or SF6). Ethyl radicals were generated by UV irradiation of Cl2, C2H6, O2, N2 (He, SF6) mixtures. Using the literature value k1=2.9×10-12 cm3/molecule s at 5 Torr to calibrate the relative rate study, the rate constants at the high and low pressure (He diluent) limits for C2H5+O2+M=C2H5O2+M, k1a, are (k1a)∞=9.2(±0.9)×10-12 cm3/molecule s and (k1a)0=6.5(±2.0)×10-29 cm6/molecule2 s.

AB - The rate constant of the reaction C2H5+O2→products, k1, has been measured as a function of pressure (3-1500 Torr) relative to that of C2H5+Cl2→C2H5Cl+Cl, k2 at 298 K in three diluents (N2, He, or SF6). Ethyl radicals were generated by UV irradiation of Cl2, C2H6, O2, N2 (He, SF6) mixtures. Using the literature value k1=2.9×10-12 cm3/molecule s at 5 Torr to calibrate the relative rate study, the rate constants at the high and low pressure (He diluent) limits for C2H5+O2+M=C2H5O2+M, k1a, are (k1a)∞=9.2(±0.9)×10-12 cm3/molecule s and (k1a)0=6.5(±2.0)×10-29 cm6/molecule2 s.

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EP - 313

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

Pressure dependence of the reaction C₂H₅+O₂

Abstract

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