Communication: non-adiabatic coupling and resonances in the F + H2 reaction at low energies.
Identifieur interne : 000687 ( France/Analysis ); précédent : 000686; suivant : 000688Communication: non-adiabatic coupling and resonances in the F + H2 reaction at low energies.
Auteurs : François Lique [France] ; Guoliang Li ; Hans-Joachim Werner ; Millard H. AlexanderSource :
- The Journal of chemical physics [ 1089-7690 ] ; 2011.
Abstract
Quantum reactive scattering calculations on accurate potential energy surfaces predict that at energies below ∼5 meV, the reaction of F atoms with H(2) is dominated by the Born-Oppenheimer (BO) forbidden reaction of the spin-orbit excited F((2)P(1∕2)) atom. This non-BO dominance is amplified by low-energy resonances corresponding to quasi-bound states of the HF(v = 3, j = 3) + H product channel. Neglect of non-adiabatic coupling between the electronic states of the F atom leads to a qualitatively incorrect picture of the reaction dynamics at low energy.
DOI: 10.1063/1.3603453
PubMed: 21702542
Affiliations:
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pubmed:21702542Le document en format XML
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<front><div type="abstract" xml:lang="en">Quantum reactive scattering calculations on accurate potential energy surfaces predict that at energies below ∼5 meV, the reaction of F atoms with H(2) is dominated by the Born-Oppenheimer (BO) forbidden reaction of the spin-orbit excited F((2)P(1∕2)) atom. This non-BO dominance is amplified by low-energy resonances corresponding to quasi-bound states of the HF(v = 3, j = 3) + H product channel. Neglect of non-adiabatic coupling between the electronic states of the F atom leads to a qualitatively incorrect picture of the reaction dynamics at low energy.</div>
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