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首页> 外文期刊>Chemical Physics Letters >A crossed-molecular beam study on collisional ionization dynamics of acetonitrile and benzene molecules with He*(2(3)S) metastable atoms
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A crossed-molecular beam study on collisional ionization dynamics of acetonitrile and benzene molecules with He*(2(3)S) metastable atoms

机译:跨分子束研究He *(2(3)S)亚稳原子与乙腈和苯分子的碰撞电离动力学

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摘要

Collision-energy/electron-energy resolved two-dimensional Penning ionization electron spectroscopy has been first applied to crossed molecular beams of CH3CN and C6H6 in interaction with a He*(2(3)S) atom. A comparison of two molecular beam conditions, a seeded supersonic jet and an effusive beam, gave considerable differences in the collision energy dependence of partial ionization cross sections (CEDPICS). Since molecules are randomly oriented in the effusive beam, distorted molecular orientations from the spherical distribution in the supersonic jet are concluded to be responsible for the observed difference in CEDPICS. (C) 2003 Elsevier B.V. All rights reserved. [References: 35]
机译:碰撞能/电子能解析二维潘宁电离电子光谱技术已首先应用于与He *(2(3)S)原子相互作用的CH3CN和C6H6交叉分子束。比较两种分子束条件,即种子超音速射流和喷射射流,在部分电离截面的碰撞能量依赖性(CEDPICS)方面存在很大差异。由于分子在喷流束中随机取向,因此可以推断超音速射流中球形分布中分子取向的畸变是造成CEDPICS中观察到的差异的原因。 (C)2003 Elsevier B.V.保留所有权利。 [参考:35]

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