Abstract
In this review article, we discuss and analyze the validities of centrifugal sudden (CS) approximations in chemical reactions, with emphasis on the recent progress in the comparison studies of close‐coupling and CS approximations in chemical dynamics both adiabatically and nonadiabatically. All these relevant studies are performed using the time‐dependent wave packet approach, focusing on several typical and benchmark chemical reactions, for example, the triatomic adiabatic ion–molecule reactions of Ne + , He + HeH+, O+ + H2, O+ + D2, and O+ + HD, the triatomic nonadiabatic reactions of N + NH and O + N2, and the tetraatomic and polyatomic adiabatic reactions of H2 + D2 and H + CHD3. © 2015 Wiley Periodicals, Inc.
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