Fiser Jirí, Franzreb Klaus, Lörincík Jan, Williams Peter
Faculty of Science, Department of Physical and Macromolecular Chemistry, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
Eur J Mass Spectrom (Chichester). 2009;15(2):315-24. doi: 10.1255/ejms.972.
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.
通过对多种样品材料进行长时间高电流的（16）O⁻离子表面轰击（氧离子束溅射），可以在气相中产生多种含氧双原子二价阳离子XO(2+)。通过质谱在离子飞行时间约为~10⁻⁵ s时的半整数m/z值检测到这些气相物种。这里给出的例子包括AsO(2+)、GaO(2+)、SbO(2+)、AgO(2+)、CrO(2+)和BeO(2+)的离子质谱。还对双原子二价阳离子体系BeO(2+)进行了详细的理论研究。
