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

doi:10.1016/S0009-2614(98)00931-2

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

Atmospheric Sciences

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	25-33
Number of pages	9
Journal	Chemical Physics Letters
Volume	295
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(98)00931-2
State	Published - Oct 2 1998

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/S0009-2614(98)00931-2

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

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.",

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T1 - S2 (a 1Δ ) production in the photolysis of reduced sulfides

T2 - Production chemistry, spectroscopy and interference potential in the LIF detection of OH

AU - Hynes, A. J.

AU - Richter, R. C.

AU - Rosendahl, A. R.

AU - Clark, C. D.

PY - 1998/10/2

Y1 - 1998/10/2

N2 - 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.

AB - 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.

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