Xenon oxydifluoride

Xenon oxydifluoride
Names
IUPAC name
difluoro(oxo)xenon
Identifiers
3D model (JSmol)
  • InChI=1S/F2OXe/c1-4(2)3
    Key: AJCPXXGFGZRPPK-UHFFFAOYSA-N
  • O=[Xe](F)F
Properties
F2OXe
Molar mass 185.289 g·mol−1
Structure
T-shape
Related compounds
Related compounds
 Xenon oxytetrafluoride
Xenon dioxydifluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Xenon oxydifluoride is an inorganic compound with the molecular formula XeOF2. The first definitive isolation of the compound was published on 3 March 2007, producing it by the previously-examined route of partial hydrolysis of xenon tetrafluoride.[1]

XeF4 + H2O → XeOF2 + 2 HF

The compound has a T-shaped geometry.[1] It is a weak Lewis acid, adducing acetonitrile and forming the trifluoroxenate(IV) ion in hydrogen fluoride. With strong fluoride acceptors, the latter generates the hydroxydifluoroxenonium(IV) ion (HOXeF+
2), suggesting a certain Brønsted basicity as well.[2]

Although stable at low temperatures, it rapidly decomposes upon warming, either by losing the oxygen atom or by disproportionating into xenon difluoride and xenon dioxydifluoride:[1]

2 XeOF2 → 2 XeF2 + O2
2 XeOF2 → XeF2 + XeO2F2

References

  1. ^ a b c Brock, David S.; Bilir, Vural; Mercier, Hélène P. A.; Schrobilgen, Gary J. (2007). "XeOF2, F2OXeN≡CCH3, and XeOF2·nHF: Rare Examples of Xe(IV) Oxide Fluorides". Journal of the American Chemical Society. 129 (12): 3598–3611. doi:10.1021/ja0673480. PMID 17335282.
  2. ^ Haner, Jamie; Schrobilgen, Gary J. "The Chemistry of Xenon(IV)". Chemical Reviews. § 5.1–5.3. doi:10.1021/cr500427p.