Evaluation of the rate constant for the reaction OH+H2CO: Application of modeling and sensitivity analysis techniques for determination of the product branching ratio

Richard A. Yetter, Herschel Rabitz, Frederick L. Dryer, Robert G. Maki, R. Bruce Klemm

Research output: Contribution to journalReview article

41 Scopus citations

Abstract

Novel modeling and sensitivity analysis techniques are used with experimental data obtained from discharge flow-resonance fluorescence experiments to evaluate the product branching ratio of OH + H2CO. Two channels are considered: the H-atom abstraction reaction (R2) to form HCO and H2O; and the addition reaction (R17) followed by rearrangement and decomposition to form HCOOH and H. The rate constant values obtained at 298 K are kR2 = (7.75 ± 1.24) × 10-12 cm 3/molecule s and kR17 = (0.2-0.2 +0.8) × 10-12 cm3/molecule s. The results demonstrate that the reaction proceeds almost exclusively via the H-atom abstraction pathway.

Original languageEnglish (US)
Pages (from-to)4088-4097
Number of pages10
JournalThe Journal of chemical physics
Volume91
Issue number7
DOIs
StatePublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

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

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