Elementary reactions of the SF radical. Part 2.—The reactions SF + X (X = O, N, NO2, NO and O2)

Abstract

The kinetics of reactions involving ground-state SF (X²Π) radicals have been studied in a discharge-flow system at 295 K using mass-spectrometric detection. The SF radical was generated by the reaction of F atoms with OCS: F + OCS → SF + CO.

The rate constants (295 K) for the following reactions of ground-state SF(X²Π) radicals have been determined: SF + O → SO + F, k=(1.70 ± 0.62)× 10^–10 cm³ s^–1, SF + N → NS + F, k=(1.71 ± 0.61)× 10^–11 cm³ s^–1, SF + NO₂→ OSF + NO, k=(2.25 ± 0.34)× 10^–11 cm³ s^–1, SF + NO → products, k < 8 × 10^–15 cm³ s^–1, SF + O₂→ products, k < 1 × 10^–14 cm³ s^–1.