The direct production of CO(v=1-9) in the reaction of O(P-3) with the ethyl radical

JP Reid*, TP Marcy, S Kuehn, SR Leone

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

Abstract

A new product channel that yields vibrationally excited CO(v=1-9) in the reaction of the ethyl radical with O(P-3) is experimentally observed by time-resolved Fourier transform infrared emission spectroscopy. The branching ratios for the different vibrational states are estimated to be 0.21 +/- 0.06, 0.27 +/- 0.03, 0.14 +/- 0.02, 0.08 +/- 0.02, 0.07 +/- 0.02, 0.07 +/- 0.02, 0.06 +/- 0.02, 0.05 +/- 0.02, and 0.05 +/- 0.02 for v=1-9, respectively. Previously, only the CH3+H2CO, CH3CHO+H, and C2H4+OH channels were known. Kinetics tests are provided to verify that the CO is produced directly in the reaction and not from secondary chemistry. The two possible new product channels are CO+CH4+H and CO+CH3+H-2. The implications of this previously unexplored reaction channel for combustion chemistry and the possible mechanisms for this reaction are discussed. (C) 2000 American Institute of Physics. [S0021-9606(00)00935-1].

Original languageEnglish
Pages (from-to)4572-4580
Number of pages9
JournalJournal of Chemical Physics
Volume113
Issue number11
Publication statusPublished - 15 Sep 2000

Keywords

  • TRANSFORM INFRARED-EMISSION
  • RESOLVED FTIR EMISSION
  • LASER FLASH-PHOTOLYSIS
  • CH3 RADICALS
  • TIME
  • KINETICS
  • ATOMS
  • DYNAMICS
  • CO
  • ACETONE

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