Observation of small gas-phase metal-oxygen dianions

Klaus Franzreb, Peter Williams

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Novel small metal-oxygen dianions have been produced in the gas phase by sputtering of metallic targets with simultaneous oxygen flooding. These exotic species were observed in a mass spectrometer for ion flight times of > 10 μs. Both Cs+ bombardment of an elemental Be metal surface and of a copper-based Cu(Be) alloy foil, with exposure of these sputtered surfaces to O2 gas, produced the novel dianions of Ben-1On2- with n = 4, 6. Be3O42- at m/z 45.5 and 46.5 was unambiguously identified by its isotopic abundance. In addition, CuBe2O42- at m/z 72.5 and 73.5 was detected for O 2 flooding of Cs+ sputtered Cu(Be).

Original languageEnglish (US)
Pages (from-to)379-384
Number of pages6
JournalChemical Physics Letters
Issue number4-6
StatePublished - Feb 26 2006

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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