Influence of formation path on the CH2BrCl2+ dissociation dynamics

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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
Enheter & grupper

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
TidskriftJournal of Chemical Physics
StatusPublished - 2005
Peer review utfördJa