Semiclassical and quantum mechanical pictures of the ro-vibrational motion of triatomic molecules

Abstract

Qualitative and quantitative aspects of the semiclassical method using rotational energy surfaces, are studied. These surfaces are determined for triatomic molecules by applying the rigid-bender model. A relation between the topology of the rotational energy surfaces and the structure of rotational multiplets is analysed. The semiclassical tools are used to determine properties of quantum ro-vibrational states.