Kinetic energy spectrum of NO+ photofragments from the photopredissociation of the à 2Σ+ state of N2O+

Publisher Website
Google Scholar
Abstract
We have employed an electrostatic energy analyzer to measure the kinetic energy of the NO+ fragment from the photopredissociation of the ion N2O+ (Ã 2Σ+). The collinear FIBLAS technique has enabled us to selectively populate predissociated rovibrational levels. For all levels studied, we obtain a narrow energy distribution, corresponding to preferential population of the v=4 vibrational level of NO+ (1Σ+), with a broad distribution over the rotational levels of this fragment. We have been able to observe the dependence of the kinetic energy liberated in the center‐of‐mass frame as a function of the initial rotational excitation of the (100) 2Σ+ level. The dissociation channel O+(4S)+N2(X 1Σ+g) has also been observed, but this mode of deexcitation has a small probability for the low‐lying predissociated levels studied.