The ultraviolet photoelectron spectra of C6F5X compounds, X = (F, Cl, Br, I, H, CH3)

Abstract

This work provides a study of the 1a2uπ, 2e2gσ, and 1e1gπ levels of a series of C6F5X compounds (X = F, Cl, Br, I, H, CH3) using ultraviolet photoelectron spectroscopy or more simply PES. The three levels are assigned from the PES spectra using the perfluoro effect. A correlation between the energies of these levels and the energies predicted by CNDO/2 and INDO is presented.