Journal article
The predissociation of the 2σ⁻¹_{u} (c ⁴Σ⁻_{u}), v states of the oxygen molecular ion
Publication Details
Authors:  Demekhin, P.; Omel'yanenko, D.; Lagutin, B.; Sukhorukov, V.; Werner, L.; Ehresmann, A.; Schartner, K.; Schmoranzer, H.

Journal:  Khimicheskaya Fizika / Russian Journal of Physical Chemistry B, Focus on Physics 
Abstract
The dynamics of predissociation of the 2σ^{1}_{u} (c ^{4}Σ^{}_{u}), v vibrational states of the O_{2}^{+} ion was studied theoretically using the method of coupled differential equations. The main equations describing the vibrational motions of nuclei in the adiabatic and diabatic approximations are given. The applicability scope of approximate methods for solving these equations was studied. The predissociation widths for the v = 0 and 1 vibrational levels were found to be Γ_{0} = 0.054 meV and Γ_{1} = 9.71 meV. This substantiated the results of recent observations of neutral fragments formed after the dissociation of the O_{2} molecule. About 99% of the O_{2}^{+} ions in the 2σ^{1}_{u} (c ^{4}Σ^{}_{u}), v states were found to decompose to the O(^{1}D) + O^{+}(^{4}S) dissociation products.