Energy transfer in atom–diatom collisions: Vibronic excitation

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Abstract
Product state distributions from charge‐transfer collisions between Ar+–N2 and H+–O2 as well as collision‐induced excitation involving N+2 on He, Ar, and Xe are presented. These data, obtained from collision‐produced emission spectra, are compared with a Franck–Condon model for the excitation‐radiation process; significant deviations are observed and explained on the basis of a qualitative curve‐crossing model formulated to treat such vibronic excitation processes.