首页> 外文期刊>Bulletin of the Korean Chemical Society >Temperature Dependence of the Reaction HCl + OH → Cl + H2O between 140 and 1100 K
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Temperature Dependence of the Reaction HCl + OH → Cl + H2O between 140 and 1100 K

机译:反应HCl + OH→Cl + H 2 O的温度依赖性在140和1100k之间

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Temperature dependence of the molecule‐radical reaction HCl?+?OH → Cl?+?H2O at temperatures between 140 and 1100?K is studied using a quasiclassical trajectory method. Potential energy surfaces are formulated using pair‐wise additive two‐body, nonadditive three‐body, and four‐body analytic forms and long‐range interactions. At temperatures above 300?K, the reaction occurs by direct collisions and the calculated rate constant fits the Arrhenius equation kdir = 4.85?× 10?12 exp.(?631?± 10/T) cm3/molecule/s. At temperatures below 300?K, the reaction is driven by an attractive potential and occurs through the formation of a ClH…OH collision complex, which is sufficiently long‐lived to enhance quantum mechanical tunneling of the H atoms. The sum of the direct and complex‐mode reaction rates effectively describes the reaction occurring at temperatures in the 140–1100?K temperature range.
机译:通过拟痉挛的轨迹法研究了分子 - 自由基反应HClα+→OH→Cl 2 O的温度依赖性。潜在的能量表面配制使用配对添加剂双体,非吸脂三体和四体分析形式和远程相互作用。在300μk的温度下,反应通过直接碰撞发生,并且计算的速率恒定适合Arhenius方程Kdir = 4.85?×10?12 exp。(?631?±10 / t)cm3 /分子/ s。在低于300μk的温度下,反应由有吸引力的电位驱动,并且通过形成ClH ...碰撞复合物,这足够长的长寿以增强H原子的量子机械隧道。直接和复杂模式反应速率的总和有效地描述了在140-1100·k温度范围内的温度下发生的反应。

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