Tetraxenonogold(II)

Tetraxenonogold(II), gold tetraxenide(II) or AuXe2+
4 is a cationic complex with a square planar configuration of atoms. It is found in the compound AuXe2+
4(Sb
2F−
11)
2, which exists in triclinic and tetragonal crystal modifications.[1] The AuXe2+
4 ion is stabilised by interactions with the fluoride atoms of the counterion. The Au−Xe bond length is 274 pm (2.74 Å).[2][3]

Tetraxenonogold(II)
Identifiers
3D model (JSmol)
ChemSpider
Properties
AuXe2+
4
Molar mass 722.138
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tetraxenonogold(II) is unusual in that it is a compound of the notoriously inert atoms xenon and gold. It is also unusual in that it uses xenon as a transition metal ligand, and in that it contains gold in the +2 oxidation state. It can be produced by reduction of AuF3 in the presence of fluoroantimonic acid and xenon, and crystallised at low temperature.[4] The xenon bonds with the gold(II) ion to make this complex.

It was the first description of a compound between a noble gas and a noble metal. It was first described in 2000 by Konrad Seppelt and Stefan Seidel.

References
  1. Wai-Kee Li; Gong-Du Zhou; Thomas C. W. Mak (2008). Gong-Du Zhou; Thomas C. W. Mak (eds.). Advanced Structural Inorganic Chemistry. Oxford University Press. p. 678. ISBN 0-19-921694-0.
  2. Li, Wai-Kee; Zhou, Gong-Du (2008). Advanced Structural Inorganic Chemistry. Thomas C. W. Mak. Oxford University Press. p. 74. ISBN 0-19-921694-0.
  3. Mackay, Kenneth Malcolm; Mackay, Rosemary Ann; Henderson, W. (2002). Introduction to modern inorganic chemistry (6th ed.). CRC Press. p. 496. ISBN 0-7487-6420-8.
  4. Konrad Seppelt, Stefan Seidel; Seppelt, K (2000-10-06). "Xenon as a Complex Ligand: The Tetraxenonogold(II) Cation in AuXe2+
    4    (Sb
    2    F−
    11    )
    2    ". Science. 290 (5489): 117–118. Bibcode:2000Sci...290..117S. doi:10.1126/science.290.5489.117. PMID 11021792.


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