Photoelectron spectra of diazabiphenylenes
Abstract
The He(I) photoelectron (PE) spectra of 1,8-diazabiphenylene (1) and 2,7-diazabiphenylene (2) have been investigated. To aid the interpretation of the PE spectra semiempirical MO calculations have been performed. The ionization transitions from the lone-pair orbitals have been assigned to be ca. 9.6 and 9.7 eV for (1) and (2), respectively.