The Born-Oppenheimer approximation and matrix elements of terms in the effective molecular Hamiltonian that violate the BO approximation. Vibration, rotation, spin-orbit, interelectronic interaction. Hund's coupling cases.

1. Introduction to the Spectroscopic Effective Hamiltonian
2. Spectroscopic Pertubations, Predissociation, and Autoionization
3. Semiclassical Methods for Calculating Vibrational Overlap Integrals
4. Wavepackets and Landau-Zener

This course covers topics in time-dependent quantum mechanics, spectroscopy, and relaxation, with an emphasis on descriptions applicable to condensed phase problems and a statistical description of ensembles.