FTIR study of the reaction of ethyl radicals with O2 and Cl2 in air at 295 K

Timothy J. Wallington; Jean M. Andino; E. W. Kaiser; Steven M. Japar

FTIR study of the reaction of ethyl radicals with O2 and Cl2 in air at 295 K

Timothy J. Wallington, Jean M. Andino, E. W. Kaiser, Steven M. Japar

Arizona State University

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Using Fourier transform infrared spectroscopy, the ethene yield from the reaction of C₂H₅ radicals with O₂ has been determined to be 1.50 ± 0.09%, 0.85 ± 0.11%, and 2H₅ radicals with molecular chlorine was measured relative to that with molecular oxygen. (6) C₂H₅ + Cl₂ → C₂H₅Cl + Cl (7) C₂H₅ + O₂ → products A ratio k₆/k₇ = 1.99 ± 0.14 was measured at 700 torr total pressure which, together with the literature value of k₇ = 4.4 × 10^-12 cm³ molecule^-1 s^-1, yields k₆ = (8.8 ± 0.6) × 10^-12 cm³ molecule^-1 s^-1. Quoted errors represent 2σ. These results are discussed with respect to previous kinetic and mechanistic studies of C₂H₅ radicals.

Original language	English
Pages (from-to)	1113-1122
Number of pages	10
Journal	International Journal of Chemical Kinetics
Volume	21
Issue number	12
Publication status	Published - Dec 1989

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

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title = "FTIR study of the reaction of ethyl radicals with O2 and Cl2 in air at 295 K",

abstract = "Using Fourier transform infrared spectroscopy, the ethene yield from the reaction of C2H5 radicals with O2 has been determined to be 1.50 ± 0.09%, 0.85 ± 0.11%, and 2H5 radicals with molecular chlorine was measured relative to that with molecular oxygen. (6) C2H5 + Cl2 → C2H5Cl + Cl (7) C2H5 + O2 → products A ratio k6/k7 = 1.99 ± 0.14 was measured at 700 torr total pressure which, together with the literature value of k7 = 4.4 × 10-12 cm3 molecule-1 s-1, yields k6 = (8.8 ± 0.6) × 10-12 cm3 molecule-1 s-1. Quoted errors represent 2σ. These results are discussed with respect to previous kinetic and mechanistic studies of C2H5 radicals.",

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

year = "1989",

month = dec,

language = "English",

volume = "21",

pages = "1113--1122",

journal = "International Journal of Chemical Kinetics",

issn = "0538-8066",

publisher = "John Wiley and Sons Inc.",

number = "12",

}

TY - JOUR

T1 - FTIR study of the reaction of ethyl radicals with O2 and Cl2 in air at 295 K

AU - Wallington, Timothy J.

AU - Andino, Jean M.

AU - Kaiser, E. W.

AU - Japar, Steven M.

PY - 1989/12

Y1 - 1989/12

N2 - Using Fourier transform infrared spectroscopy, the ethene yield from the reaction of C2H5 radicals with O2 has been determined to be 1.50 ± 0.09%, 0.85 ± 0.11%, and 2H5 radicals with molecular chlorine was measured relative to that with molecular oxygen. (6) C2H5 + Cl2 → C2H5Cl + Cl (7) C2H5 + O2 → products A ratio k6/k7 = 1.99 ± 0.14 was measured at 700 torr total pressure which, together with the literature value of k7 = 4.4 × 10-12 cm3 molecule-1 s-1, yields k6 = (8.8 ± 0.6) × 10-12 cm3 molecule-1 s-1. Quoted errors represent 2σ. These results are discussed with respect to previous kinetic and mechanistic studies of C2H5 radicals.

AB - Using Fourier transform infrared spectroscopy, the ethene yield from the reaction of C2H5 radicals with O2 has been determined to be 1.50 ± 0.09%, 0.85 ± 0.11%, and 2H5 radicals with molecular chlorine was measured relative to that with molecular oxygen. (6) C2H5 + Cl2 → C2H5Cl + Cl (7) C2H5 + O2 → products A ratio k6/k7 = 1.99 ± 0.14 was measured at 700 torr total pressure which, together with the literature value of k7 = 4.4 × 10-12 cm3 molecule-1 s-1, yields k6 = (8.8 ± 0.6) × 10-12 cm3 molecule-1 s-1. Quoted errors represent 2σ. These results are discussed with respect to previous kinetic and mechanistic studies of C2H5 radicals.

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