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Branching ratios for hydrogen transfer in the reactions of OD radicals with CH3SCH3 and CH3SC2H5

✍ Scribed by R.E. Stickel; Z. Zhao; P.H. Wine

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 649 KB
Volume: 212
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)89331-b

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✦ Synopsis

Laser Bash photolysis of DNOs/RSR'/R"H/Nr mixtures (R&HI, R'=CH, or C,H,, R"=n-hexyl or cyclohexyl) has been coupled with HDO detection by time-resolved tunable diode laser absorption spectroscopy to directly investigate the importance of C-H bond cleavage as the q-independent pathway for the atmospherically interesting reactions of OD radicals with CHaSCHs and CH3SCzH5. For both reactions the HDO yield is found to be approximately 0.84kO.15 (uncertainty is 2a), thus demonstrating conclusively that C-H bond cleavage predominates over C-S bond cleavage as a reaction pathway in the absence of Oz.

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