Reaction dynamics of O(¹D) + HD. I. the insertion pathway

The doubly differential cross sections (angle and speed) for the reactions O(¹D) + HD→OH(OD) + D(H) at E_c=2.05 kcal/mol were directly mapped out using the Doppler-selected time-of-flight technique in a crossed-beam experiment. Except for the previously noted discrepancy in the H/D isotope branching ratio, good agreement with QCT (quasiclassical trajectory) results on a high quality ab initio surface are found for all dynamical features, including the product angular and translational energy distributions and the very detailed angle-specific translational energy release.