“…Since then, rotational analyses of the electronic emission bands have been performed (3)(4)(5)(6)(7), as well as work in the millimeter and microwave regions of the spectrum (8,9). Work performed by Rao et al (4,5), as well as contributions by Lagerqvist and Lazarava-Girsamoff (10) and Ahmed and Barrow (11), led to the characterization of the six excited electronic states, originally labeled as is between two highly excited electronic states (14). Ab initio calculations were performed with new assignments for the electronic systems that included triplet states (15,16).…”