 | |
| Names | |
|---|---|
| IUPAC name Gold(III) fluoride | |
| Other names Gold trifluoride Auric fluoride | |
| Identifiers | |
3D model (JSmol) | |
| ChEBI | |
| ChemSpider |
|
| |
| |
| Properties | |
| AuF3 | |
| Molar mass | 253.961779 g·mol−1 |
| Appearance | orange-yellowhexagonal crystals |
| Density | 6.75 g/cm3 |
| Melting point | sublimes above 300 °C |
| Reacts[2][3] | |
| +74·10−6 cm3/mol | |
| Structure | |
| Hexagonal,hP24 | |
| P6122, No. 178 | |
| Thermochemistry | |
Std enthalpy of formation(ΔfH⦵298) | −363.3 kJ/mol |
| Related compounds | |
Otheranions | Gold(III) chloride Gold(III) bromide |
Othercations | Silver fluoride Copper(II) fluoride Mercury(II) fluoride |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Gold(III) fluoride is aninorganic compound of gold and fluorine with the molecular formulaAuF3. It is an orange solid thatsublimes at 300 °C.[4] It is a powerfulfluorinating agent. It is very sensitive to moisture, yieldinggold(III) hydroxide andhydrofluoric acid.
AuF3 can be prepared by reactingAuCl3 withF2 orBrF3.[3]
Thecrystal structure of AuF3 consists of spirals ofsquare-planar AuF4 units.[5]
 |  |  |  |  |
| AuF3unit cell | neighbouring (AuF3)n helices | distorted octahedral coordination of gold by six fluorines | top-down view of an (AuF3)n helix | side view of an (AuF3)n helix |
Media related toGold trifluoride at Wikimedia Commons | Thismetal halide related article is astub. You can help Wikipedia byexpanding it. |
