Abstract

The potential curves for the X 2Σ+g and A 2Πu states of N+2 are determined using generally contracted atomic natural orbital Gaussian basis sets and large CASSCF/multireference CI wave functions. The dependence of the X 2Σ+g– A 2Πu electronic transition moment on internuclear distance is accurately determined, and is shown to differ significantly from previous determinations. However, the theoretically determined lifetimes agree with the experimental time-of-flight data of Peterson and Moseley and of Holland and Maier within the stated experimental error bars.

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