The Reaction of CH2OH Radicals with O2 Studied by Laser Magnetic Resonance Technique

S. Dóbé, F. Temps, T. Böhland, H. Gg Wagner

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Abstract

The reaction of CH2OH with O2 was studied in an isothermal flow system at 296 K. A rate coefficient, k1 (296 K) = (6.4 ± 1.5) × 1012 cm3 mol−1 s−1, has been determined for the overall reaction CH2OH + O2 → product(s) (1) by monitoring the decay of the LMR signal of the CH2OH radical. A value of (6.3 ± 2.8) × 1012 cm3 mol−s−1 has been obtained for the overall rate coefficient by following the formation of the product HO2 radicals in the specific reaction channel CH2OH + O2 → HO2 + CH2O.(1a) No dependence on pressure of k1 was observed in the pressure range 0.69 ≦ P/mbar ≦ 6.50 studied. A complex mechanism has been proposed for the formation of HO2 and CH2O in the reaction.

Original languageEnglish
Pages (from-to)1289-1298
Number of pages10
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume40
Issue number12
DOIs
Publication statusPublished - Dec 1 1985

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ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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