S2 (a 1Δ ) production in the photolysis of reduced sulfides: Production chemistry, spectroscopy and interference potential in the LIF detection of OH

A. J. Hynes, R. C. Richter, A. R. Rosendahl, C. D. Clark

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Production of S2 (a 1Δ, v=2) has been observed in the UV photolysis of several reduced sulfur compounds by monitoring the f 1Δ-a 1Δ (2-3) laser excitation spectrum. There appears to be at least three production mechanisms including reaction of S (1D) with the precursor. The f-a (2-3) band shows several spectral overlaps with the OH A 2Σ-X 2Π (1-0) band including the Q11 line. Since a significant fraction of the f-a emission from f 1Δ (v=2) overlaps the OH A-X (1-1) and (0-0) bands the potential for a significant 'interference' signal exists if the two species are produced simultaneously.

Original languageEnglish (US)
Pages (from-to)25-33
Number of pages9
JournalChemical Physics Letters
Volume295
Issue number1-2
DOIs
StatePublished - Oct 2 1998

ASJC Scopus subject areas

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

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