  Time-dependent wave packet calculations for the reaction H+HCl and its
isotopic reactions are carried out on the potential energy surface (PES) of
Bian and Werner (BW2) [Bian, W.; Werner, H. -J., J. Chem. Phys. 2000, 112,
220]. Reaction probabilities for the exchanged and abstraction channels are
calculated from various initial rotational states of the reagent. Those have
then been used to estimate reaction cross sections and rate constants which
also are calculated and explained by the zero-point energy and the tunneling
effect. The results of this work were compared with that of previous
quasiclassical trajectory calculations and reaction dynamics experiments on the
abstraction channel. In addition, the calculated rate constants are in
reasonably good agreement with experimental measurements for both channels. Key
words: ab initio, H/D+ DCl/HCl, collision energy, integral cross section, rate
constan
