Gold(III) iodide

Gold(III) iodide
Names
Systematic IUPAC name
Gold(III) iodide
Other names
Auric iodide
Gold iodide
Digold hexaiodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.281 Edit this at Wikidata
  • InChI=1S/Au.3HI/h;3*1H/q+3;;;/p-3
    Key: GCZKMPJFYKFENV-UHFFFAOYSA-K
  • I[Au](I)I
Properties
AuI3
Molar mass 577.67998 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Gold iodide is the chemical compound with the formula AuI3. Although Au2I6 is predicted to be stable,[1] gold(III) iodide remains an example of a nonexistent or unstable compound.[2] Attempts to isolate pure samples result in the formation of gold(I) iodide and iodine:

AuI3 → AuI + I2[citation needed]
  1. ^ Tilo Söhnel, Reuben Brown, Lars Kloo Peter Schwerdtfeger "The Stability of Gold Iodides in the Gas Phase and the Solid State" Chemistry - A European Journal 2001, volume 7, 3167–3173. doi:10.1002/1521-3765(20010716)7:14<3167::AID-CHEM3167>3.0.CO;2-G
  2. ^ Schulz, A.; Hargittai, M. (2001), "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)", Chemistry - A European Journal, 7 (17): 3657–3670, doi:10.1002/1521-3765(20010903)7:17<3657::aid-chem3657>3.0.co;2-q, PMID 11575767; also see cover picture description