Variable photon energy photoelectron spectroscopy of Mo2(O2CCF3)4

Abstract Relative partial photoionization cross sections, branching ratios and β measurements are reported for Mo 2 (O 2 CCF 3 ) 4 over the photon energy range 20 to 70 eV. The metal based δ and σ + π ionizations are strongly enhanced over the photon energy range 36–65 eV. The comparable size of the resonance in the two metal bands suggests similar d character for the associated MO. A smaller resonance is also found in the oxygen localized ionization bands. An additional resonance is identified for the δ band at 24 eV which is accompanied by a change in β.