Evidence for Renner-Teller coupling in the upper, triplet electronic state of the 370 nm system of InOH

The gross features of the recently observed ultraviolet band system of InOH are explained in terms of transitions from the ground 1A′ to components of an excited triplet state in which the molecule is also bent. The triplet state correlates with a 3Π state in the linear configuration and is subject to a large Renner-Teller effect.