He-I and He-II excited photoelectron spectra of cyclohepttatrienetricarbonyl complexes of group via metals

Photoelectron spectra of Group VIA metal complexes M(CO)3(η6-C7H8) have been assigned using experimental criteria along with quantum-mechanical calculations. A general agreement between computed and measured ionization energies has been found for molecular orbitas mainly ligand in character. Similar correlations do not hold for the highest orbitals, mainly metal d based. The energies associated with ionization processes are, in this case, largely dominated by the relaxation terms. The variations of intensities of these bands on changing the energy of ionizing radiation were of crucial significance in the assignment