Kinetics and Dynamics of the S(1D2) + H2 → SH plus H Reaction at Very Low Temperatures and Collision Energies

被引：100

作者：

Berteloite, Coralie ^{[1
]}

Lara, Manuel ^{[1
]}

Bergeat, Astrid ^{[2
,3
]}

Le Picard, Sebastien D. ^{[1
]}

Dayou, Fabrice ^{[1
]}

Hickson, Kevin M. ^{[2
,3
]}

Canosa, Andre ^{[1
]}

Naulin, Christian ^{[2
,3
]}

Launay, Jean-Michel ^{[1
]}

Sims, Ian R. ^{[1
]}

Costes, Michel ^{[2
,3
]}

机构：

[1] Univ Rennes 1, Inst Phys Rennes, CNRS, UMR 6251, F-35042 Rennes, France

[2] Univ Bordeaux, Inst Sci Mol, F-33405 Talence, France

[3] CNRS, UMR 5255, F-33405 Talence, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 20期

关键词：

INITIO POTENTIAL SURFACE; CHEMICAL-REACTIONS; CROSS-SECTIONS; S(D-1)+H-2; MOLECULES; STATE;

D O I：

10.1103/PhysRevLett.105.203201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report combined studies on the prototypical S(D-1(2)) + H-2 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.

引用

页数：4

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