Double-ionization energies to singlet and triplet electronic states of the acetaldehyde dication measured by double-charge-transfer spectroscopy

Abstract

Double-charge-transfer spectroscopy has been used to measure the double-ionization energies of acetaldehyde to singlet and triplet electronic states of the dication. The values, measured within the range 30–42 eV, are in good agreement with previously calculated data thus allowing the characteristics of the spectra to be interpreted in terms of specific electronic transitions.