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Kinetic study of the reaction of IO with CH 3 SCH 3
Author(s) -
Martin D.,
Jourdain J. L.,
Laverdet G.,
Le Bras G.
Publication year - 1987
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550190603
Subject(s) - chemistry , torr , reaction rate constant , atmospheric pressure , analytical chemistry (journal) , atmosphere (unit) , kinetic energy , reaction rate , kinetics , organic chemistry , thermodynamics , meteorology , physics , quantum mechanics , catalysis
The reaction IO + CH 3 SCH 3 → products (3) was studied at room temperature and near 1 Torr pressure of He, using the discharge flow mass spectrometric technique. The rate constant was found to be k 3 = (1.5 ± 0.5) × 10 −11 cm 3 molecule −1 s −1 . CH 3 S(O)CH 3 was detected as a product suggesting the following channel: IO + CH 3 SCH 3 → CH 3 S(O)CH 3 + I. The rate constant of the reaction IO + IO → products (1) was also measured: k 1 = (3 ± 0.5) × 10 −11 at 298 K and 1 Torr pressure. The atmospheric implication of reaction (3) is discussed. The results indicate that this reaction could be a potential important sink of CH 3 SCH 3 in marine atmosphere.