Valence electronic structure of oxadiazoles and quinoxalines model compounds

Thin films of oxadiazoles and quinoxalines model compounds have been investigated by means of Ultraviolet Photoelectron Spectroscopy (UPS) in order to get a detailed description of the valence electronic band structure. Furthermore, we used semi-empirical quantum-chemical calculations to evaluate the valence electronic structure of the isolated molecules. UPS spectra have been calculated by use of molecular eigenvalues and we assigned the different peaks to the different molecular eigenstates.