Oxygen-containing diatomic dications in the gas phase.
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.
Fiser
Jirí
J
Faculty of Science, Department of Physical and Macromolecular Chemistry, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
Franzreb
Klaus
K
Lörincík
Jan
J
Williams
Peter
P