ELECTRONIC BAND SYSTEMS OF OH, NH, AND CH

Abstract

Recently we developed an infinite order perturbation technique for the vibration and rotation levels of doublet sigma and doublet pi states in couplings intermediate between Hund’s case a and case b. This technique has been applied to the OH and OD molecules in the X and A states. The technique is being applied to the sigma-pi transition in CH and other doublet molecules. Extension to doublet delta states and triplet systems will be discussed.