Imaging the Effect of Reactant Rotations on the Dynamics of the Cl + CHD3(v1 = 1, |J,K鉄? Reaction

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• 作者：Fengyan Wang ; Huilin Pan ; Kopin Liu
• 刊名：Journal of Physical Chemistry A
• 出版年：2015
• 出版时间：December 17, 2015
• 年：2015
• 卷：119
• 期：50
• 页码：11983-11988
• 全文大小：382K
• ISSN：1520-5215

文摘

The effect of the rotational excitations of CHD₃(v₁ = 1, |J,K鉄? in reaction with the Cl atom was investigated in a crossed-beam, product-imaging experiment over the collisional energy (E_c) range 1鈥? kcal mol^鈥?. It was found that the initial J- and K-selections affect only the total reactivity, not the more detailed product-state and angular distributions鈥攁 surprising result that defies conventional wisdom. Although the higher reactivity with increasing J states could be understood as a result of a wider range of attack angles near the barrier, the observed K-propensity of 蟽_{|J0鉄?/sub> < 蟽|JJ鉄?/sub> for J = 1 at Ec < 2 kcal mol^鈥?, opposite to that reported previously at higher Ec鈥檚, is perplexing and yet to be explained.}