Editing Gold halide

{{Short description|Compound of gold with a halogen}}
[[File:Gold(III)_chloride_solution.jpg|thumb|right|alt=Concentrated aqueous solution of gold(III) chloride (auric chloride)|Concentrated aqueous solution of gold(III) chloride (auric chloride)]]
'''Gold halides''' are compounds of [[gold]] with the [[halogen]]s.

== Monohalides ==
[[Gold(I) chloride|AuCl]], [[gold(I) bromide|AuBr]], and [[gold(I) iodide|AuI]] are all crystalline solids with a structure containing alternating linear chains: ..-X-Au-X-Au-X-Au-X-... The X-Au-X angle is less than 180°.<ref>{{Greenwood&Earnshaw2nd}}</ref>

The monomeric AuF molecule has been detected in the gas phase.<ref>{{cite journal |author1=D. Schröder |author2=J. Hrušák |author3=I. C. Tornieporth-Oetting |author4=T. M. Klapötke |author5=H. Schwarz | title = Neutral Gold(I) Fluoride Does Indeed Exist | year = 1994 | journal = [[Angewandte Chemie International Edition in English]] | volume = 33 | issue = 2 | pages = 212–214 | doi = 10.1002/anie.199402121 }}</ref>

== Trihalides ==
[[Gold triiodide]] does not exist or is unstable.<ref>{{citation|author1=Schulz, A. |author2=Hargittai, M. |year=2001|title=Structural variations and bonding in gold halides: A quantum chemical study of monomeric and dimeric gold monohalide and gold trihalide molecules, AuX, Au2X2, AuX3, and Au2X6 (X = F, Cl, Br, I)|journal=Chemistry - A European Journal|volume=7|number=17|pages=3657–3670|doi=10.1002/1521-3765(20010903)7:17<3657::aid-chem3657>3.0.co;2-q|pmid=11575767}}</ref>

[[Gold(III) fluoride]], AuF<sub>3</sub>, has a unique polymeric helical structure, containing corner-sharing {AuF<sub>4</sub>} squares.

== Pentahalides ==
[[Gold(V) fluoride]], AuF<sub>5</sub>, is the only known example of gold in the +5 [[oxidation state]]. It most commonly occurs as the dimer Au<sub>2</sub>F<sub>10</sub>.

== References ==
<references/>

[[Category:Metal halides]]
[[Category:Gold–halogen compounds]]