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

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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 languageEnglish
Pages (from-to)1113-1122
Number of pages10
JournalInternational Journal of Chemical Kinetics
Issue number12
Publication statusPublished - Dec 1989


ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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