Chloryl tetraperchloratoaurate

Chloryl tetraperchloratoaurate is an inorganic chemical compound with the formula ClO₂Au(ClO₄)₄ consisting of the chloryl cation and a tetraperchloratoaurate anion. It is an orange solid that readily hydrolyzes in air.^[1]

Chloryl tetraperchloratoaurate

Names
Other names Gold(III) perchlorate dichlorine hexoxide
Identifiers
CAS Number	453509-25-6 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/Au.4ClHO4.ClO2/c;4*2-1(3,4)5;2-1-3/h;4*(H,2,3,4,5);/q+3;;;;;+1/p-4 Key: ACLJBRMVWTXQHV-UHFFFAOYSA-J
SMILES O=Cl[O+].O=Cl(=O)(=O)[O-][Au+3]([O-]Cl(=O)(=O)=O)([O-]Cl(=O)(=O)=O)[O-]Cl(=O)(=O)=O
Properties
Chemical formula	ClO2Au(ClO4)4
Molar mass	662.22 g/mol
Appearance	Orange crystals[1]
Density	3.18 g/cm3
Melting point	48 °C (118 °F; 321 K) (decomposes)
Solubility in water	Reacts
Structure
Crystal structure	monoclinic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Production and reactions

Chloryl tetraperchloratoaurate is produced by the oxidation of gold metal, gold(III) chloride, or chloroauric acid by dichlorine hexoxide:^[1][2]

2 AuCl₃ + 8 Cl₂O₆ → 2 ClO₂Au(ClO₄)₄ + 6 ClO₂ + 3 Cl₂

A production of gold(III) perchlorate is attempted by heating this compound, but it instead forms an oxy-perchlorato derivative.^[1]

References

1. Frédérique Cunin; Catherine Deudon; Frédéric Favier; Bernard Mula; Jean Louis Pascal (2002). "First Anhydrous Gold Perchlorato Complex: ClO2Au(ClO4)4. Synthesis and Molecular and Crystal Structure Analysis". Inorganic Chemistry. 41 (16): 4173–4178. doi:10.1021/ic020161z.
2. Jean-Louis Pascal; Frédéric Favier (1998). "Inorganic perchlorato complexes". Coordination Chemistry Reviews. 178–180: 865–902. doi:10.1016/S0010-8545(98)00102-7.