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Kinetic study for the reactions of OH radicals with dimethylsulfide, diethylsulfide, tetrahydrothiophene, and thiophene

✍ Scribed by D. Martin; J. L. Jourdain; G. LeBras

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 732 KB
Volume: 17
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550171202

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✦ Synopsis

The reactions of OH radicals with dimethylsulfide (DMS) diethylsulfide (DES), tetrahydrothiophene (THT), and thiophene have been studied at room temperature for DES and THT, a t 273,293, and 318 K for DMS, and at 293 and 318 K for thiophene by the discharge flow EPR technique in a halocarbon wax coated reactor. The following rate constants were obtained a t room temperature. (1) OH + DMS: k, = (3.22 2 0.16) x OH + DES: k, = (1.2 2 0.14) x lo-" OH + THT: k3 = (2.12 2 0.16) x lo-" OH + thiophene: k, = (1.2 ? 0.1) x lo-' ' (units are cm3 molecule-' s-l)

For the reaction OH + DMS (l), a very low temperature dependence was noticed. are also reported. Some additional results concerning the mass spectrometric analysis of the products

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