A Kinetical Theoretical Study of CN+HX（X=H、Cl、NH₂）→HCN+X Reactions

In this paper, a kinetical study of reactions HX（X=H, Cl, NH₂）+CN is based on ab initio calculation. Before the transition state, there,is a potential peak during reacting of NH₃+CN for NH₃ symmetry changing while the potential change of reactions H₂, HCl+CN is monotone. The calculated rate constant values are in good agreement with the experimental results by Smith.