Influence of formation path on the CH2BrCl2+ dissociation dynamics

Research output: Contribution to journalArticle


To get further insight into the CH2BrCl site-selective fragmentation previously observed upon inner-shell ionization, we have performed high-resolution Br 3d and Cl 2p Auger and spin-orbit resolved Br 3d Auger spectra, and studied the dissociation properties of the CH2BrCl2+ dication formed at threshold by means of threshold electron pair-ion coincidence measurements. The key point is that the origin of site-specific bond breaking is found in the Auger decay itself, as it preferentially populates selected dication states. Whereas the predominance of the C-Br bond breaking is observed in both threshold and inner-shell studies, no signature of selective C-Cl rupture is reported for the dication formed at threshold.


  • K Le Guen
  • M Ahmad
  • Denis Céolin
  • P Lablanquie
  • C Miron
  • F Penent
  • P Morin
  • M Simon
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
JournalJournal of Chemical Physics
Issue number8
Publication statusPublished - 2005
Publication categoryResearch