Potential energy curves and transition dipole moments of the 51 lowest electronic states of the N2 molecule

Abstract

This study presents Born–Oppenheimer energies and transition dipole moments of the 51 lowest electronic states of the N2 molecule as a function of internuclear distance in the interval between 1.35 and 10 bohrs. The electronic states are of the total electronic spin S = 0, 1, 2, and 3 dissociating toward the lowest dissociation limits. The obtained potential energy curves are employed to compute the vibrational energy levels of these states, with the aim of improving the reference database for this molecular system, which will serve as a basis for future investigations related to nitrogen plasma formation.