Kinetics and dynamics of the S(1D2) + H2 → SH + H reaction at very low temperatures and collision energies. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2010

Kinetics and dynamics of the S(1D2) + H2 → SH + H reaction at very low temperatures and collision energies.

Résumé

We report combined studies on the prototypical S(1D2) + H2 insertion reaction. Kinetics and crossed-beam experiments are performed in experimental conditions approaching the cold energy regime, yielding absolute rate coefficients down to 5.8 K and relative integral cross sections to collision energies as low as 0.68 meV. They are supported by quantum calculations on a potential energy surface treating long-range interactions accurately. All results are consistent and the excitation function behavior is explained in terms of the cumulative contribution of various partial waves.

Dates et versions

hal-00657832 , version 1 (09-01-2012)

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Coralie Berteloite, Manuel Lara, Astrid Bergeat, Sébastien D. Le Picard, Fabrice Dayou, et al.. Kinetics and dynamics of the S(1D2) + H2 → SH + H reaction at very low temperatures and collision energies.. Physical Review Letters, 2010, 105 (20), pp.203201. ⟨10.1103/PhysRevLett.105.203201⟩. ⟨hal-00657832⟩
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