Photoelectron spectroscopy of excited molecular states

Resonance Enhanced Multiphoton Ionization (REMPI), coupled with high-resolution photoelectron spectroscopy, is becoming an important probe of the photoionization dynamics of molecular excited states at a quantum-state specific level. In this paper we will discuss some results of our studies of ionic rotational and vibrational distributions for REMPI of several small molecules such as H2O, O2, NO, OH, and CH which illustrate some dynamically important features of these processes.