JMSSJ On-line, Vol. 43 (1995) No. 1, pp. 65-75
Gas-Phase Solvation of O2+, O4+, and O6+ with Ar
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    Kenzo HIRAOKA,*a) Ichiro KUDAKA,a) and Shinichi YAMABE*b)

    *a) Faculty of Engineering, Yamanashi University (Takeda-4, Kofu 400, Japan) b) Department of Chemistry, Nara University of Education (Takabatake-cho, Nara 630, Japan)
Thermochemical stabilities of O2+(Ar)n, O4+(Ar)n, and O6+(Ar)n were determined with a pulsed electron-beam mass spectrometer. All ions Om+ with m=2, 4, and 6 are found to accommodate two Ar atoms favorably; shell structures, Om+(Ar)2(Ar)n-2 are formed. The structures of O2+(Ar)2, O4+(Ar)2, and O6+(Ar)2 were discussed based on ab initio calculations.
Key words: Cluster ion, High-pressure mass spectrometer, Gas-phase solvation, O2+, O4+, O6+
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