The Rate Constant Ratio k_1(Cl+C_2H_6)/k_2(C1+CH_4)from 250 to 700 K

E.W.Kaiser; T.J.Wallington; Y.hashikawa; m.kawaskai

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The Rate Constant Ratio k_1(Cl+C_2H_6)/k_2(C1+CH_4)from 250 to 700 K

机译：速率常数比k_1（Cl + C_2H_6）/ k_2（C1 + CH_4）从250到700 K

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Knowledge of the rate constants of the reactions Cl+C_2H_6(1)and Cl+CH_4(2)is important to the modeling of atmospheric chemistry,particularly in marine environments and in the stratosphere.These rate constants are also used as reference reactions in the determination of rate constants of many other species with Cl atoms.In a recent publication,the results of previous relative rate measurements of k/k_2 have been called into question.The present experiments measure klki from 250 to 700 K using GC analysis and at 296 K using an FTIR smog chamber.These relative rate measurements are consistent with previous relative rate measurements and agree to within 15%with ratios of k and k_2 determined in recent absolute rate experiments.Contrary to recent claims,we believe that the relative and absolute data provide a consistent picture of the reactivity of Cl atoms toward CPU and

机译：知道反应Cl + C_2H_6（1）和Cl + CH_4（2）的速率常数对于大气化学建模非常重要，尤其是在海洋环境和平流层中。这些速率常数还用作参考反应确定许多其他具有Cl原子的物种的速率常数。在最近的出版物中，以前对k / k_2的相对速率测量的结果受到质疑。本实验使用GC分析法测量了250至700 K的k lki这些相对速率测量结果与以前的相对速率测量结果一致，并且在最近的绝对速率实验中确定的k 和k_2的比率在15％以内。与最近的说法相反，我们认为相对和绝对数据提供Cl原子对CPU和

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2004年第46期|共6页
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E.W.Kaiser; T.J.Wallington; Y.hashikawa; m.kawaskai;
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1. The Rate Constant Ratio k_1(Cl+C_2H_6)/k_2(C1+CH_4)from 250 to 700 K [J] . E.W.Kaiser, T.J.Wallington, Y.hashikawa, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2004,第46期

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The Rate Constant Ratio k_1(Cl+C_2H_6)/k_2(C1+CH_4)from 250 to 700 K

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