State-to-state differential cross sections for a four-atom reaction: H2 + OH → H2O + H in full dimensions
Zhiqiang Zhao1, Shu Liu1, Dong H Zhang1
1State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China.
Abstract:
The time-dependent wave packet method has been employed to calculate state-to-state differential cross sections for the title reaction in full dimensions. It is found that the majority of H2O is produced in the first stretching excited states, with a large fraction of available energy for the reaction ending up as product internal motion. The differential cross sections for collision energy up to 0.4 eV are all peaked in the backward direction, but the width of the angular distribution increases considerably as the increase of collision energy. The isotope effect was also examined by comparing the scattering angular distribution for the title reaction with those for the HD + OH and D2 + OH reactions obtained in our previous work.
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