[en] The threshold- and CIS-photoelectron spectrum of SO2 has been measured using synchrotron radiation. It is compared to the He(I)-photoelectron spectrum measured with the same instrument under the same conditions. Several additional vibrational fine structures are observed between the first and the second bands. These are interpreted in terms of autoionization also detected in the CIS-spectra. At higher photon energies, band maxima are measured at 19.2 eV, 20.6 eV and 23.5 eV.
Laboratoire de Dynamique Moléculaire
Bundes Ministerium für Forschung und Technologie, FNRS, EU Contract n°GE1-0018-D in the LSI-Program.