The reactions of S(3PJ) atoms with thiiranes

The reactions of ground-state S(³P_J) atoms with thiirane, methylthiirane, and trans-2,3-dimethylthiirane have been studied by flash photolysis-VUV kinetic absorption spectroscopy. From the analysis of the S(³P_J) decay plots the following rate constants were determined: (1.4 ± 0.2) × 10¹³, (2.7 ± 0.3) × 10¹³ and (4.0 ± 0.2) × 10¹³ (in cm³ mol^?1 s^?1 units) for thiirane, methylthiirane and trans-2,3-dimethylthiirane, respectively, showing an upward trend with increasing methylation.