The {E directX E} directX e Vibronic Coupling Case: A Prototypal Product Jahn-Teller System

摘要

The {E directX E} directX e product Jahn-Teller (JT) system is studied in the strong vibronic coupling approximation, using the Oepik and Pryce method and the isostationary function procedure. It is found that the potential energy surface exhibits a minimal energy trough. Depending on the relative sign of the two force constants, the coupling of two electronic vectors that are in different E-space is either in-phase or out-of-phase. The excited levels in the extremal positions are also investigated.