Vibrational and rotational effects on fragmentation of CF3I via (2+1) resonance-enhanced multiphoton ionization
1993
Abstract The fragmentation behavior of CF 3 I in the resonance-enhanced multiphoton ionization (REMPI) spectrum through the electronic C state is investigated. Rotational bandshape simulations are used to establish the existence of an inhomogeneous predisociation of the resonant intermediate state. Differences in the rotational profiles with parent and fragment ion detection suggest rotational state dependence of the dissociation of the electronically excited CF 3 I + ion. In addition, a vibrational mode dependence is observed in the ration of I + to CF 3 I + signal, with levels involving excitation of ν 3 the symmetric CI; stretch, exhibiting higher ratio than other vibrationally excited levels with a similar amount of vibrational energy.
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