碰撞能量对反应Sr+ HF转动取向的影响(英文)  

Rotational Alignment of the Reaction Sr＋ HF as a Function of Collision Energies

作　　者：蔡孟秋[1] 唐璧玉[1] 杨国伟[1] 杨益明[1] 韩克利[2] 

机构地区：[1]湘潭大学物理系,湘潭411105 [2]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连116023

出　　处：《物理化学学报》2001年第6期521-525,共5页Acta Physico-Chimica Sinica

摘　　要：在推广 LEPS势能面上，用经典轨线方法，研究了反应碰撞能量对反应 Sr＋ HF的转动取向的影响 .计算结果与产物轨道角动量模型进行比较 .计算结果表明，随着碰撞能量的增加，产物转动取向越强烈 .The trajectory calculations of the reaction Sr＋ HF on the extended London- Eyring- Polanyi- Sato (LEPS) potential energy surface have been carried out to study the dependence of product rotational alignment on the collision energies. The calculated results for the reaction of Sr＋ HF were compared with the predictions from the constrained product orbital angular momentum model. The final rotational angular momentum was found to be perpendicularly polarized with respect to the reagents′ relative velocity vector. The higher the collision energies are the more anisotropic is the distribution of the product rotational angular momentum vector.

关 键 词：轨线计算 推LEPS势能面 碰撞能量 转动取向 锶 氟化氢 反应机理 

分 类 号：O643.1[理学—物理化学]