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Selective dynamic energy transfers in proton collisions with hydrogen fluoride
Author(s) -
Gianturco F. A.,
Buonomo E.,
Serna S.
Publication year - 1993
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560470504
Subject(s) - collision , excitation , atomic physics , proton , chemistry , rotational energy , potential energy , quantum , energy (signal processing) , hydrogen fluoride , vibrational energy , physics , excited state , quantum mechanics , computer security , computer science , inorganic chemistry
Abstract Earlier experimental data by Friedrich et al. found out, from time‐of‐flight experiments of collisions between H + and HF molecules, that most of the available relative energy becomes transferred into internal rotations of the target and that vibrational excitation only begins to be noticeable around and above 30 eV of relative collision energy. The present theoretical and computational model starts from the potential energy function presented in the preceding paper and carries out quantum calculations that explicitly include the coupling of vibrational target states. The results indeed show very few vibrational excitations and rather large rotational energy transfers as the collision energy is increased up to 50 eV. Microscopic features of both the interaction and the dynamics are found to be responsible for such behavior, which brings the present calculations in agreement with experimental findings. © 1993 John Wiley & Sons, Inc.