Oxygen-containing diatomic dications in the gas phase

Fišer Jirí, Klaus Franzreb, Jan Lörinčík, Peter Williams

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


A variety of oxygen-containing diatomic dications XO2+ can be produced in the gas phase by prolonged high-current 160- ion surface bombardment (oxygen ion beam sputtering) of a wide range of sample materials. These gas-phase species were detected by mass spectrometry at half-integer m/z values for ion flight times of the order of ∼10-5s. Examples provided here include ion mass spectra of AsO2+, GaO 2+, Sb02+ Ag02+ CrO2+ and BeO 2+. A detailed theoretical study of the diatomic dication system BeO2+ is also presented.

Original languageEnglish (US)
Pages (from-to)315-324
Number of pages10
JournalEuropean Journal of Mass Spectrometry
Issue number2
StatePublished - 2009


  • Ab initio calculations
  • Diatomic dications
  • Electronic structure determination
  • Mass spectrometry
  • Metastable gas-phase molecules
  • Oxygen ion beam sputtering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy


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