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首页> 外文期刊>Chemical Physics Letters >The He +H_2~+ reaction:a dynamical test on potential energy surfaces for a system exhibiting a pronounced resonance pattern
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The He +H_2~+ reaction:a dynamical test on potential energy surfaces for a system exhibiting a pronounced resonance pattern

机译:He + H_2〜+反应:在系统中表现出明显共振模式的势能表面动力学测试

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摘要

Quantum mechnaical calculations on three potential energy surfaces for the prototype ion-molecule reaction He+H_2~+->HeH~++H have been performed in order to test the influence of their accuracties on reaction probabilities and cross sections. The ab initio points of McLaughlin and Thompson (1979) fitted by two different functional forms, and a fit of a new set of ab initio points have been used. Dynamical results, in particular the rich resonance pattern, illustrate the dependence both on the nature of the potential energy surface, and on the type of functional form used to fit the same ab initio data.
机译:为了测试离子-分子反应原型He + H_2〜+-> HeH〜++ H的三个势能面的量子力学计算,以测试其精确度对反应概率和截面的影响。 McLaughlin和Thompson(1979)的从头算点由两种不同的函数形式拟合,并且使用了一组新的从头算点。动力学结果,特别是丰富的共振模式,说明了对势能表面性质以及用于拟合相同的从头数据的功能形式类型的依赖性。

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