Institut de Physique de Rennes, UMR 6251 du CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
Phys Rev Lett. 2010 Nov 12;105(20):203201. doi: 10.1103/PhysRevLett.105.203201. Epub 2010 Nov 10.
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.
我们报告了关于 S(1D2) + H2 插入反应的原型的综合研究。在接近冷能状态的实验条件下进行动力学和交叉束实验，得到了低至 5.8 K 的绝对速率系数和低至 0.68 meV 的相对积分截面到碰撞能。这些结果得到了准确处理长程相互作用的势能表面上的量子计算的支持。所有结果都是一致的，激发函数的行为可以根据各种分波的累积贡献来解释。
