Quasi-classical trajectory calculation of the chemical reaction Sr+CH3Br

Wen Wen Xia, Li Yao, Baojiu Chen
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引用次数: 4

Abstract

In this paper, we carried out the calculations to study the dynamics properties of Sr+CH3Br reaction system by using quasi-classical trajectory (QCT) method, based on the extended London-Eyring-Polanyi-Sato (LEPS) potential energy surface (PES). We have obtained the vibrational distribution, rotational distribution, reaction cross section and the product rotational alignments. The calculated rotational alignments are in good agreement with the experimental ones [3]. When the collision energy is 0.57 eV, the peak values of the vibrational and rotational distributions are located at v = 7 and j = 70, respectively. The reaction cross sections decrease with the increasing collision energy when the collision energy changes from 0.1 to 1.0 eV.

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Sr+CH3Br化学反应的准经典轨迹计算
本文基于扩展的London-Eyring-Polanyi-Sato (LEPS)势能面(PES),采用准经典轨迹(QCT)方法对Sr+CH3Br反应体系的动力学性质进行了计算研究。得到了反应的振动分布、转动分布、反应截面和产物的转动排列。计算结果与实验结果吻合较好[3]。碰撞能量为0.57 eV时,振动和旋转分布的峰值分别位于v = 7和j = 70处。当碰撞能量在0.1 ~ 1.0 eV范围内变化时,反应截面随碰撞能量的增加而减小。
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