An analysis of the <i>A</i> 1Σ<i>u</i>+–<i>X</i> 1Σ<i>g</i>+ band system of 7Li2

Abstract

A new analysis of the A 1Σu+–X 1Σg+ band system of 7Li2 has been made. The analysis extends from v′=0 to v′=25, from v″=0 to v″=14, and up to J=78. The dissociation energy of the A state is found to be 8940 cm−1, considerably less than any earlier estimate of that energy. The RKR potential curves for the A and X states are given, together with the Franck–Condon factors for the A–X transition.