Abstract
The threshold photoelectron spectra of SO2 were recorded over the photon energy range (12–50 eV) under high-resolution conditions using synchrotron radiation. Extensive vibrational ‘filling-in’ is found in the Franck-Condon gap regions between the three lowest ionic-state band systems that is attributed to autoionization of Rydberg states lying in these regions. The outer-valence ionization region (12–18 eV) consists mainly of the vibrationally well-defined electronic states of (X˜2A1), (A˜2B2), (B˜2A2), (C˜2B1), (D˜2A1) and (E˜2B2) being derived from the molecular orbitals: (8a1), (5b2), (1a2), (2b1), (7a1) and (4b2), respectively, but there are also some features that can be associated with the two weak satellite structures (1 2B1) and (3 B22). On the other hand, in the inner-valence ionization region (18–50 eV) the opposite is true, i.e., a well-defined electronic state structure is limited to the (F˜2A1) state of SO2+ with a (6a1) molecular orbital origin, with the preponderance of the remaining structure due to broad satellite features involving ionization from the inner-valence (3b2) and (5a1) molecular orbitals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Electron Spectroscopy and Related Phenomena
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
