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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Quasi-classical trajectory study of the dynamics of the Cl + CH4 → HCl + CH3 reaction
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Quasi-classical trajectory study of the dynamics of the Cl + CH4 → HCl + CH3 reaction

机译:Cl + CH4→HCl + CH3反应动力学的准经典轨迹研究

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摘要

We present an on-the-fly classical trajectory study of the Cl + CH4 → HCl + CH3 reaction using a specific reaction parameter (SRP) AM1 Hamiltonian that was previously optimized for the Cl + ethane reaction [S. J. Greaves et al., J. Phys Chem A, 2008, 112, 9387]. The SRP-AM1 Hamiltonian is shown to be a good model for the potential energy surface of the title reaction. Calculated differential cross sections, obtained from trajectories propagated with the SRP-AM1 Hamiltonian compare favourably with experimental results for this system. Analysis of the vibrational modes of the methyl radical shows different scattering distributions for ground and vibrationally excited products.
机译:我们使用特定的反应参数(SRP)AM1哈密顿量,对Cl + CH4→HCl + CH3反应进行了动态经典轨迹研究,该过程先前已针对Cl +乙烷反应进行了优化[S. J. Greaves等人,J。Phys Chem A,2008,112,9387]。 SRP-AM1哈密顿量被证明是标题反应势能面的良好模型。从使用SRP-AM1哈密顿量传播的轨迹获得的计算得出的微分截面与该系统的实验结果相比具有优势。甲基自由基振动模式的分析表明,地面和振动激发产物的散射分布不同。

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