Radiative and predissociative lifetimes of the V′ = 0 level of the A 2Σ+ state of SH and SD from chemical and spectroscopic studies

Randall R. Friedl, Wm H. Brune, James G. Anderson

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Abstract

Predissociation is observed to occur throughout the V′ = 0 level of the A 2Σ+ states of SH and SD, based upon laser-induced fluorescence measurements obtained in conjunction with knowledge of the absolute concentrations of both radicals via chemical titration in a fast flow reactor in the pressure range 1-5 Torr. By comparison of results with those obtained in the same system for OH, a radical for which both the kinetics and spectroscopy are well defined, predissociative and radiative lifetimes are calculated to be 3 and 820 ns for SH; 260 and 730 ns for SD.

Original languageEnglish (US)
Pages (from-to)4227-4236
Number of pages10
JournalThe Journal of chemical physics
Volume79
Issue number9
DOIs
StatePublished - 1983

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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