@Article{JAMS-6-11, author = {Wang , YunhuiDeng , Kaiming and Lu , Ruifeng}, title = {Quantum Dynamics Study of $H$ Exchange Reaction of $H'(^2S) + CH(X^2\Pi) → H(^2S) + CH'(X^2\Pi)$ and Isotope Reactions of $H(^2S)+CH(X^2\Pi)→C(^1D)+H_2(X^1\sum^+_g)$}, journal = {Journal of Atomic and Molecular Sciences}, year = {2015}, volume = {6}, number = {1}, pages = {11--22}, abstract = {

By using the time-dependent quantum wave packet method, we report a detailed dynamics study of H exchange reaction $H'(²S) + CH(X²\Pi) → H(²S) + CH'(X²\Pi)$ and the isotope effects of $H(²S) + CH(X²\Pi) → C(¹D) + H_2(X¹Σ^+_g)$ reaction on the 11A BHL potential energy surface. The reaction probabilities and integral cross sections have been obtained for the initial states $v = 0$ and $j = 1$ of the reactant molecules. The dense resonance structures in the reaction probabilities at all total angular momentums indicate complex-forming mechanisms for both $C + H_2$ and $H + CH$ products. A comparison between the results from centrifugal sudden approximation and those from close-coupled calculations demonstrates that the Coriolis coupling effects get more and more pronounced with increasing of $J$ for both $H$ exchange reaction and $CH$ decay reaction. The isotopic $D$ substitution of reactant significantly influences the $CH$ decay reaction. Moreover, it is revealed that the dynamical features such as partial wave contributions to the cross section are substantially different for these two channels.

}, issn = {2079-7346}, doi = {https://doi.org/10.4208/jams.123014.021515a}, url = {http://global-sci.org/intro/article_detail/jams/8176.html} }