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FTIR study of the DMS/NO 2 /I 2 /N 2 photolysis system: The reaction of IO radicals with DMS
Author(s) -
Barnes I.,
Becker K. H.,
Carlier P.,
Mouvier 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.550190602
Subject(s) - chemistry , radical , photodissociation , torr , reaction rate constant , molecule , photochemistry , fourier transform infrared spectroscopy , reaction mechanism , analytical chemistry (journal) , kinetics , organic chemistry , catalysis , thermodynamics , physics , quantum mechanics
A steady‐state system involving the photolysis of NO 2 in an excess of I 2 as a source of IO radicals has been used to study the reaction IO + DMS in 760 Torr N 2 at 296 K. IO radicals were found to react rapidly with DMS, one molecule of DMSO being produced for each molecule of DMS consumed. Numerical analysis of the experimental results yielded a rate constant of (3.0 ± 1.5) × 10 −11 cm 3 s −1 for the reaction IO + DMS → DMSO + I.