Bonn 2000 – scientific programme
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MO: Molekülphysik
MO 7: Photoionisation I (gemeinsam mit FV Atomphysik)
MO 7.1: Talk
Tuesday, April 4, 2000, 14:00–14:15, HS I
A K-shell single-hole photoionisation study of furan. — •Emma E Rennie1, Uwe Hergenhahn1, Andy Rüdel1, Oliver Kugeler1, and Alexander M Bradshaw2 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin — 2Max-Planck-Institut für Plasmaphysik
The C1s single-hole photoionisation cross section of the aromatic heterocycle furan has been measured from just above the C 1s ionisation threshold to 337 eV. Electron yield spectra have been measured between 287-310 ev, resolving the 2 component nature of the π* resonance and the Rydberg structure for the first time. Resonant Auger and Auger spectra have been obtained to help identify structural features present in both the single-hole cross section and in previously published lower resolution photoabsorption studies. High resolution photoelectron spectra at both the C 1s and O 1s edges are presented along with resulting vibrational analysis. The two components in the C 1s photoelectron spectra due to the different chemical environments are split by 1.5 eV. The results are compared to our previous C 1s photoionisation measurements on benzene.
The measurements were performed on the X1B beamline at the Brookhaven NSLS synchrotron radiation source.