| Abstract
| - We present the results of a time-dependent quantum mechanical investigation using centrifugal suddenapproximation in the form of reaction probability as a function of collision energy (Etrans) in the range 0.3−3.0 eV for a range of total angular momentum (J) values and the excitation function σ(Etrans) for the exchangereaction H- + H2 (v = 0, j = 0) → H2 + H- and its isotopic variants in three dimensions on an accurate abinitio potential energy surface published recently (J. Chem. Phys.2004, 121, 9343). The excitation functionresults are shown to be in excellent agreement with those obtained from crossed beam measurements byZimmer and Linder for H- + D2 collisions for energies below the threshold for electron detachment channeland somewhat larger than the most recent results of Haufler et al. for (H-, D2) and (D-, H2) collisions.
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