Fig. 4: Valence-level photoelectron spectra of free ion pairs.
From: Frontier orbitals and quasiparticle energy levels in ionic liquids
Theoretical results are compared against experimental gas phase ultraviolet photoelectron spectra (UPS) of ionic liquid vapors from I. Kuusik, Mati Kook, Rainer Pärna & V. Kisand (manuscript under preparation).
