Open AccessCOLLISION-INDUCED DISSOCIATION (CID) (Ⅰ)——TIME-DEPENDENT QUANTUM THEORY
Author(s) -
向天翔
Publication year - 1990
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.39.718
Subject(s) - dissociation (chemistry) , quantum , collision , intermolecular force , physics , morse potential , perturbation (astronomy) , exponential function , collision induced dissociation , atomic physics , quantum mechanics , molecule , chemistry , computer science , mass spectrometry , computer security , tandem mass spectrometry , mathematical analysis , mathematics
Collision-induced dissociation dynamic processes have been studied in this paper by using Time-dependnet quantum mechanical perturbation theory. The molecular systems are of the type of the Morse oscillator and the intermolecular exponential repulsive interaction potential. The analytical formula established can be conveniently applied to analyse a variety of physical and chemical problems relevent to CID processes. The numerical calculation for the (I2, He) system shows that vibrational energy is more effective than translational energy in enhancing the rate of the CID processes, as the total energy of the system is fixed. In addition, except the energy barrier, there are no extra dynamical restrictions for CID processes.