Electron spin resonance studies. Part XLIII. Reaction of dimethyl sulphoxide with the hydroxyl radical
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 4,p. 303-308
- https://doi.org/10.1039/p29750000303
Abstract
A kinetic analysis is given of the reaction between the hydroxyl radical (generated from the TiIII–H2O2 couple in a continuous flow system) and dimethyl sulphoxide in aqueous acid at ambient temperature; steady-state concentrations of both Me˙ and MeSO2˙ have been monitored. Evidence is presented that the former radical arises from addition of ˙OH to the sulphoxide followed by rapid decomposition of the intermediate species Me2SO2˙. There was no evidence for the formation of ˙CH2S(O)Me. Rate constants for the reaction between hydroxyl and Me2SO, for that between Me˙ and MeSO2H, and for the dimerisation of methyl are estimated as 5 × 109, ca. 106, and 5·6 × 109 l mol–1 s–1, respectively.Keywords
This publication has 0 references indexed in Scilit: