Polyatomic systems energy level structure

This chapter is devoted to recent developments in a class of approximation methods that aim at describing the energy-level structure and dynamics of energy transfer in vibrationally highly excited polyatomic systems. The meth ods that are the subject of the present study are the self-consistent-field (SCF) approximations, in which framework each vibrational mode is described as moving in an effective field obtained by averaging the full potential function... 

In this chapter we analyzed several developments in SCF approaches to intramolecular dynamics, as pertinent both to the vibrational energy-level structure and to vibrational energy redistribution in polyatomic systems. The emphasis was on methodological progress, and on how the latter throws light on the physical basis for the validity of the method and on possible future applications. The main themes that emerged in the discussion can be summarized as follows. 

---