摘要
We present a direct ab initio dynamics study of thermal rate constants of the hydrogen abstraction reaction of CH4 + O3 → HOOO + CH3. The geometries of all the stationary points are optimized at MPW1K/6-31+G(d,p), MPWB1K/6-31+G(d,p), and BHandHLYP/6-31+G(d,p) levels of theory. The energies are refined at a multi-high-level method. The extended Arrhenius expression fitted from the CVT/SCT and μVT/Eckart rate constants of ozonolysis of methane in the temperature range 200-2500 K are k CVT/SCT(T) = 5.96 × 10-29T4.49 e (-17321.3/T) and kμVT/Eckart(T) = 7.92 × 10 -29 T4.46 e(-17301.7/T) = respectively.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 1999-2005 |
| 页数 | 7 |
| 期刊 | International Journal of Quantum Chemistry |
| 卷 | 107 |
| 期 | 10 |
| DOI | |
| 出版状态 | 已出版 - 15 8月 2007 |
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