Analyse vibrationnelle et rotationnelle de la transition A2Σ+–X2Πi de la molécule 63Cu80Se

Abstract

High dispersion vibrational and rotational analysis of a 63Cu80Se visible band system has been performed.The presence of a splitting proportional to [Formula: see text] in each observed subsystem indicates that these bands arise from a transition from a 2Σ state (with γ-type doubling) to a 2Π state. This hypothesis allows us to derive specific molecular constants of these two states.