Influence of Rotational-Vibrational Coupling on Shape of Rovibrational Bands

摘要

The integrated absorption coefficient of rovibrational bands is calculated for three different cases,namely for separated rotational and vibrational motions,for the non-rigid model which takes into account the coupling between above mentioned motions using the Kratzer-Fues potential and the soft body model,for which only rovibrational states exist.It is shown that the shape of P and R bands for higher rotational quantum numbers depends on the applied model of rotational-vibrational transitions.