Photoelectron scattering in molecules and fullerenes

New coincidence techniques in photoelectron spectroscopy of molecules and c lusters made it possible to approach complete experiments in molecular phot oionization for the first time. This method - angle-resolved photoelectron- photoion coincidence spectroscopy - a versatile tool for the study of elect ron-ion momentum vector correlations reveals the intermolecular scattering and associated interference of the photoelectron on its way out. This effec t is illustrated by selected showcase examples of molecular core level and valence photoionization. The application of this 'photoelectron interferenc e' concept on the valence photoionization of fullerenes, in particular C-60 , is discussed. (C) 2000 Elsevier science B.V. All rights reserved.