Site selective dissociation upon core ionization of ozone

Research output: Contribution to journalArticle


Ozone is found to exhibit substantial site-selective fragmentation when its fragment ions are collected in coincidence with energy selected electrons. We find a preferential production of the O-2(+)/O+(O+/O+) ion pair upon ionization of the terminal (central) oxygen Is electron. Depending on the hole localization, Auger rates are different towards the various final states of the dication, which would produce the observed different fragmentation pattern. We also observe however an increase O-2(+)/O+ production for when the terminal core-hole state is vibrationally excited. This shows the role of the nuclear motion before the Auger decay in the observed site-specific. (c) 2007 Elsevier B.V. All rights reserved.


  • Alexandra Mocellin
  • Karoline Wiesner
  • Stacey Ristinmaa Sörensen
  • Catalin Miron
  • Karine Le Guen
  • Denis Céolin
  • Marc Simon
  • Paul Morin
  • Andre Bueno Machado
  • Olle Bjorneholm
  • Arnaldo Naves de Brito
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)214-218
JournalChemical Physics Letters
Issue number4-6
Publication statusPublished - 2007
Publication categoryResearch