用变分过渡态理论研究CH3SiH3+H→CH3SiH2+H2反应动力学

来源 :化学物理学报 | 被引量 : 0次 | 上传用户:lv53647678
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用变分过渡态理论对CH3SiH3与H的抽提反应进行了理论研究;利用从头算计算了反应体系的构型、振动频率和能量等信息;计算了温度在298~1700K内反应的速率常数和穿透系数。结果表明,在室温下,变分对于此反应影响较大,隧道效应特别明显,计算得到的速率常数和实验值符合得很好。
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