Photoelectron Spectra of Molecules. II. The Ionization Potentials of Azabenzenes and Azanaphthalenes

Abstract

The ionization potentials of pyridine, pyrazine, pyrimidine, pyridazine, quinoline, isoquinoline, quinoxaline, quinazoline, cinnoline, and phthalazine have been derived from molecular photoelectron spectra. Simple first‐order perturbation theory and the MINDO SCF MO method have been employed in assigning the experimental first ionization potentials to ionization from a $\pi$ or nonbonding energy level.