The electronic structure of ZnO and ZnF determined by anion photoelectron spectroscopy

The 3.49 and 4.66 eV photoelectron spectra of ZnO− and ZnF− are reported. The PES of ZnO− shows five electronic transitions between two states of the anion and four states of the neutral. The EA of ZnO is 2.087(8) eV. The vibrational frequencies of all but the excited anion state are determined, in addition to relative bond lengths. The photoelectron spectrum of ZnF− exhibits one electronic transition between the ground states of the anion and the neutral. The electron affinity of ZnF is 1.974(8) eV. Vibrational frequencies and relative bond lengths are determined for these two states.