Oscillating reactivity in quasiclassical trajectory calculations for the reaction O(³P) + HC1 → OH + Cl

Strong oscillations in the reactivity as a function of collision energy were found in collinear quasiclassical trajectory calculations for the reaction O(³P)+HCl(v = 0) → OH + Cl. Oscillations were also observed in 3D calculations for HCl(^v = 0, J = 0) under the special conditions of near-zero impact parameters b and small and specific values of the azimuthal orientation angle θ_r, the angle between the molecular axis of HC1 and the initial direction of the relative velocity vector. These oscillations were washed out when θ_r and b were randomly selected from the appropriate ranges, and were not observed even for the reactive scattering in the angular ranges 170 to 180° and 175 to 180°.