Reaction of OH with Dimethyl Sulfide. 2. Products and Mechanisms
The technique of pulsed laser photolysis/pulsed laser-induced fluorescence was used to determine products of the following reactions: OH + CH3SCH3 → products (1) and CH3S(OH)CH3 + O2 → products (5). The non-adduct-forming channel of reaction 1 was observed to proceed via hydrogen abstraction (branc...
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Veröffentlicht in: | Journal of physical chemistry (1952) 1996-08, Vol.100 (35), p.14703-14713 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | The technique of pulsed laser photolysis/pulsed laser-induced fluorescence was used to determine products of the following reactions: OH + CH3SCH3 → products (1) and CH3S(OH)CH3 + O2 → products (5). The non-adduct-forming channel of reaction 1 was observed to proceed via hydrogen abstraction (branching ratio, Φabs = 0.84 ± 0.26) at 298 K. Direct formation of CH3S from reaction 1 was not observed (ΦCH 3 S < 0.04). A small channel for producing CH3 and CH3SOH in the non-adduct-forming route could not be ruled out. HO2 was found to be produced from reaction 5 with a yield of 0.50 ± 0.15 at 234 and 258 K. An upper limit for the production of OH from reaction 5 was determined to be ΦOH < 0.05. The atmospheric implications of the results from this and the accompanying paper are discussed. |
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ISSN: | 0022-3654 1541-5740 |
DOI: | 10.1021/jp960867c |