Abstract:
The present review deals with the chemical aspects of a new concept in the structure and properties of molecules and crystals, namely the concept of vibronic interactions, where the movements of the electrons and the nuclei are not described separately, and account is taken of the mixing of electronic states by the displacements of the nuclei. The applications of this concept to the description of vibronic structure by means of orbital vibronic constants, vibronic reactivity, and chemical activation on coordination, and to electron-conformational interactions, have been examined. The concept of vibronic interactions provides a basis for a deeper understanding of the origins of the structure and transformations of molecular systems. The bibliography contains 48 references.