Rate constants for the reactions of OH radicals and Cl atoms with diethyl sulfide, Di‐ n ‐propyl sulfide, and Di‐ n ‐butyl sulfide

Rate constants for the reactions of OH radicals and Cl atoms with diethyl sulfide (DES), di‐ n ‐propyl sulfide (DPS), and di‐ n ‐butyl sulfide (DBS) have been determined at 295 ± 3 K and a total pressure of 1 atm. Hydroxyl radical rate data was obtained using the absolute technique of pulse radiolysis combined with kinetic spectroscopy. The chlorine atom rate constants were measured using a conventional photolytic relative rate method. The rate constant for the reaction of Cl atoms with dimethyl sulfide (DMS) was also determined. The following rate constants were obtained:\documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} k({\rm OH + DES) = (}11.6 \pm 2) \times 10^{ - 12} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm OH + DPS) = (}21.5 \pm 3) \times 10^{ - 12} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm OH + DBS) = (}37.4 \pm 5) \times 10^{ - 12} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm Cl + DMS) = (}32.2 \pm 3) \times 10^{ - 11} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm Cl + DES) = (}44.1 \pm 4) \times 10^{ - 11} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm Cl + DPS) = (}51.8 \pm 4) \times 10^{ - 11} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ k({\rm Cl + DBS) = (}64.6 \pm 2) \times 10^{ - 11} {\rm cm}^{\rm 3} {\rm molecule}^{{\rm - 1}} {\rm s}^{{\rm - 1}} \\ \end{array} $$\end{document}