Spontaneous oxidation of xenon to Xe(II) by cationic Ag(II) in anhydrous hydrogen fluoride solutions

Journal Article · Wed Jun 06 00:00:00 EDT 1990 · Journal of the American Chemical Society; (USA)

DOI:https://doi.org/10.1021/ja00168a032· OSTI ID:6653437

Zemva, B; Lutar, K; Jesih, A ^[1]; Hagiwara, R; Casteel, Jr, W J; Bartlett, N ^[2]

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1. Edvard Kardelj Univ., Ljubljana (Yugoslavia)
2. Univ. of California, Berkeley (USA)

Blue solutions, prepared by dissolving AgF{sub 2} in anhydrous hydrogen fluoride (AHF) with BF{sub 3} or AsF{sub 5}, oxidize Xe, at {approximately}20{degree}C, to produce nearly colorless solids. Overall reactions (all in AHF) are as follows: 2AgF{sub 2} + 2BF{sub 3} + Xe {yields} XeF{sub 2} + 2AgBF{sub 4}; 4AgF{sub 2} + 5AsF{sub 5} + 2Xe {yields} Xe{sub 2}F{sub 3}AsF{sub 6} + 4AgAsF{sub 6}. Solid AgF{sub 2} does not interact, at {approximately}20{degree}C, with Xe. Ag(I) in AHF is catalytic to the interaction of Xe with F{sub 2} (Xe + F{sub 2} {yields} XeF{sub 2}), but XeF{sub 2} precipitates AgF{sub 2} from Ag(II) AHF solutions (e.g. AgFAsF{sub 6} + 2XeF{sub 2} {yields} Xe{sub 2}F{sub 3}AsF{sub 6} + AgF{sub 2}). To maintain the Ag(I/II) catalyst the fluoride-ion donor, XeF{sub 2}, must be neutralized with acid, e.g. 2Xe + 2F{sub 2} + AsF{sub 5} {yields} Xe{sub 2}F{sub 3}AsF{sub 6}.

• OSTI ID: 6653437
• Journal Information: Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 112:12; ISSN 0002-7863; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL REACTIONS
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NONMETALS
NUMERICAL DATA
OXIDATION
RARE GASES
SILVER
TRANSITION ELEMENTS
XENON