Steric asymmetry and lambda-doublet propensities in state-to-state rotationally inelastic scattering of NO(2?1/2) with He.

M.J.L. de Lange, S. Stolte, C.A. Taatjes, J. Klos, G.C. Groenenboom, A van der Avoird

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Abstract

The steric effects in inelastic scattering of NO and He, a system where repulsive interactions dominate, were discussed. The dependence of the integral inelastic cross section on the incoming λ-doublet component was observed as a function of the final rotational and spin-orbit state. The measured steric asymmetries were found to be significantly larger than observed for NO-Ar scattering. Analysis showed that the restricted coupled-cluster methods including single, double and noniterated triple excitations [RCCSD(T)] potential energy surface (PES) of He-NO was reliable and was slightly better than the CEPA PES.
Original languageEnglish
Pages (from-to)11691-11701
JournalJournal of Chemical Physics
Volume121
DOIs
Publication statusPublished - 2004

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