PHOTOELECTRON SPECTRA OF TETRACYANOETHYLENE(TCNE) AND TETRACYANOQUINODIMETHANE(TCNQ)

Abstract
The photoelectron spectra of TCNE and TCNQ in the gaseous state were measured by stimulating with He I resonance line. The first ionization potential is determined to be 11.77 eV for TCNE and 9.61 eV for TCNQ. The interpretations of the observed photoelectron spectra are carried out with the aids of the photoelectron spectroscopic data of the related compounds and the results of CNDO/2 calculation.