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Jahn-Teller coupling and fragmentation after core-shell excitation ini CF4 investigated by partial-ion-yield spectroscopy
Physical Review A
  • Renaud Guillemin, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement
  • Wayne C. Stolte, University of Nevada, Las Vegas
  • Maria Novella Piancastelli, Uppsala University
  • Dennis W. Lindle, University of Nevada, Las Vegas
Document Type
Article
Publication Date
10-1-2010
Abstract

We investigate fragmentation processes induced by core-level photoexcitation in CF4 at both the carbon and fluorine K edges by means of partial-ion-yield spectroscopy. The molecule CF4 is a textbook example of systems in which Jahn-Teller coupling strongly manifests itself in the photoabsorption spectrum. Spectral features related to Jahn-Teller and quasi-Jahn-Teller splitting are observed, and important differences in the fragmentation pathways are revealed depending on the symmetries of the core-excited states. We interpret these experimental observations on the grounds of symmetry lowering from the Td to the C3v point group as well as preferential orientation with respect to the polarization vector of the incident radiation.

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Copyright American Physical Society, used with permission
Citation Information
Renaud Guillemin, Wayne C. Stolte, Maria Novella Piancastelli and Dennis W. Lindle. "Jahn-Teller coupling and fragmentation after core-shell excitation ini CF4 investigated by partial-ion-yield spectroscopy" Physical Review A Vol. 82 Iss. 043427 (2010) p. 7
Available at: http://works.bepress.com/wayne_stolte/16/