CH3SH photolysis at 248 nm. Hydrogen atom yield and rate constant for the H + CH3SH reaction

P. H. Wine, J. M. Nicovich, A. J. Hynes, J. R. Wells

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Hydrogen atoms have been detected by time-resolved resonance fluorescence spectroscopy following 248-nm pulsed-laser photolysis of CH3SH. The primary photolysis yield of H atoms has been determined to be 1.08 ± 0.24 by comparing fluorescence signals observed following CH3SH photolysis with those observed following photolysis of O3/H2 mixtures. The kinetics of the H + CH3SH reaction have been investigated. Over the temperature range 249-405 K the rate constant is given by the Arrhenius expression k = (3.45 ± 0.13) × 10-11 exp[-(845 ± 12)/T] cm3 molecule-1 s-1.

Original languageEnglish (US)
Pages (from-to)4033-4037
Number of pages5
JournalJournal of physical chemistry
Volume90
Issue number17
DOIs
StatePublished - 1986

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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