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arXiv · 1010.2121

Kinetics and Dynamics of the S(^1D_2) + H_2 \to SH + H Reaction at Very Low Temperatures and Collision Energies

Coralie Berteloite·Manuel Lara·Astrid Bergeat·Sébastien Le Picard·Fabrice Dayou·Kevin M. Hickson·André Canosa·Christian Naulin·Jean-Michel Launay·Ian R. Sims·Michel Costes
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Abstract

We report combined studies on the prototypical S(^1D_2) + 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.

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Coralie Berteloite, Manuel Lara, Astrid Bergeat, Sébastien Le Picard, Fabrice Dayou, Kevin M. Hickson, André Canosa, Christian Naulin, Jean-Michel Launay, Ian R. Sims, Michel Costes. 2010-10-11. Kinetics and Dynamics of the S(^1D_2) + H_2 \to SH + H Reaction at Very Low Temperatures and Collision Energies. https://doi.org/10.1103/physrevlett.105.203201

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