Fiser J, Franzreb K, Lörincík J, Williams P. Oxygen-containing diatomic dications in the gas phase.
EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2009;
15:315-324. [PMID:
19423916 DOI:
10.1255/ejms.972]
[Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A variety of oxygen-containing diatomic dications XO(2+) can be produced in the gas phase by prolonged high-current (16)O(-) 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 ~10-5 s. Examples provided here include ion mass spectra of AsO(2+), GaO(2+), SbO(2+), AgO(2+), CrO(2+) and BeO(2+). A detailed theoretical study of the diatomic dication system BeO(2+) is also presented.
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