Kinetics of the vibrational deactivation of OH X 2II (v = 3, 2, 1) with hydrides and reduced sulfides

Eric Silvente, Robert C. Richter, Anthony J. Hynes

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The deactivation kinetics of vibrationally excited OH X 2II were studied using the pulsed laser photolysis-pulsed laser induced fluorescence technique. Photolysis of O3 at 266 nm was used to produce O(1D) which reacted rapidly with a precursor to produce OH(v). Temporal profiles of OH(v) were obtained by exciting off-diagonal (Δv = -1) transitions in the A-X band of OH and monitoring the diagonal, blue-shifted fluorescence. Deactivation rate coefficients for OH (v = 3, 2, 1) with H2O and CH4 and for OH (v = 2, 1) with NH3, CS2, (CH3)2S, CH3SH and CH3Br were obtained. The mechanisms of deactivation and the relationship of the deactivation rate coefficients to the thermal association rate coefficients for OH complexes are discussed.

Original languageEnglish (US)
Pages (from-to)2821-2830
Number of pages10
JournalJournal of the Chemical Society - Faraday Transactions
Issue number16
StatePublished - Aug 21 1997

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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