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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Coupled Cluster and Second-Order Moller-Plesset Perturbation Studies of the Mechanism of the Gas-Phase Atom-Radical Reaction of Atomic Hydrogen with CF_2 Radical
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Coupled Cluster and Second-Order Moller-Plesset Perturbation Studies of the Mechanism of the Gas-Phase Atom-Radical Reaction of Atomic Hydrogen with CF_2 Radical

机译:原子氢与CF_2自由基的气相原子-自由基反应机理的团簇和二阶Moller-Plesset摄动耦合研究

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摘要

The mechanism for the reaction of CF_2 radicals with H atoms has been examined using coupled cluster theory. There are two competing pathways for the formation of the products CF + HF. The first pathway involves direct abstraction of fluorine from CF_2 by H atoms, the barrier for which is 46.5 kcal mol~(-1). The second pathway involves the addition of H atoms to CF_2 to form CF_2H, followed by a three-center elimination of HF. The overall barrier for these two steps is 10.0 kcal mol~(-1).
机译:CF_2自由基与H原子反应的机理已使用偶合簇理论进行了研究。 CF + HF的形成有两种竞争途径。第一条途径涉及通过H原子从CF_2直接提取氟,其势垒为46.5 kcal mol〜(-1)。第二种途径涉及向CF_2中添加H原子以形成CF_2H,然后通过三中心消除HF。这两个步骤的总势垒为10.0 kcal mol〜(-1)。

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