Converged three-dimensional quantum mechanical reaction probabilities and delay times for the F+H2 reaction on a potential energy surface with a realistic exit valley

Chin hui Yu, Donald J. Kouri, Meishan Zhao, Donald G. Truhlar, David W. Schwenke

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Abstract

Fully converged quantum mechanical F+H2→HF+H reaction probabilities are reported for initial rotational quantum numbers j=0, 2, and 4, total angular momentum J=0, and a range of translational energies from 0.7 to 3.4 kcal/mol for potential energy surface No. 5A of Steckler et al. State-to-state delay times are also calculated and are used to test for the occurrence of resonances. We find that the ν′=3 HF product vibrational state has no delay in its threshold compared to ν′=2. Furthermore, no resonance structure is observed in the time delays for orbital angular momentum l=0. Both findings are consistent with experiment. The ν′=3 probability is higher than that for ν′=2 for initial l=0, but the ratio decreases for higher l.

Original languageEnglish (US)
Pages (from-to)491-495
Number of pages5
JournalChemical Physics Letters
Volume157
Issue number6
DOIs
StatePublished - May 26 1989

Bibliographical note

Funding Information:
We thank Y. Sun, 0. Sharafeddin, and P. Halvick for helpful conversations. This work was supported in part by the National Science Foundation, the R.A. Welch Foundation, and the Minnesota Supercomputer Institute.

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