Gold(III) fluoride
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Gold(III) fluoride[1] | |
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IUPAC name Gold(III) fluoride | |
Other names Gold trifluoride | |
Identifiers | |
CAS number | 14720-21-9 |
PubChem | 5460532 |
ChemSpider | 10790539 |
ChEBI | CHEBI:30077 |
Jmol-3D images | {{#if:[Au+3].[F-].[F-].[F-]|Image 1 |
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Properties | |
Molecular formula | AuF3 |
Molar mass | 253.962 g/mol |
Appearance | orange-yellow hexagonal crystals |
Density | 6.75 g/cm3 |
Melting point | sublimes above 300°C |
Structure | |
Crystal structure | Hexagonal, hP24 |
Space group | P6122, No. 178 |
Thermochemistry | |
Std enthalpy of formation ΔfH |
-363.3 kJ/mol |
(verify) (what is: / ?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
Infobox references | |
Gold(III) fluoride, AuF3, is an orange solid that sublimes at 300 °C.[2] It is a powerful fluorinating agent.
Preparation
AuF3 can be prepared by reacting AuCl3 with F2 or BrF3.
Structure
The crystal structure of AuF3 consists of spirals of square-planar AuF4 units.[3]
References
- ↑ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 4–59. ISBN 0-8493-0594-2.
- ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0080379419., p. 1184.
- ↑ F. W. B. Einstein, P. R. Rao, James Trotter and Neil Bartlett (1967). "The crystal structure of gold trifluoride". Journal of the Chemical Society A: Inorganic, Physical, Theoretical 4: 478–482. doi:10.1039/J19670000478.
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