Gold(III) fluoride
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| Names | |
|---|---|
| IUPAC name
Gold(III) fluoride
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| Other names
Gold trifluoride
Auric fluoride | |
| Identifiers | |
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3D model (JSmol)
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PubChem CID
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| Properties | |
| AuF3 | |
| Molar mass | 253.961779 g·mol−1 |
| Appearance | orange-yellow hexagonal 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 | |
Other anions
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Gold(III) chloride Gold(III) bromide |
Other cations
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Silver fluoride Copper(II) fluoride Mercury(II) fluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Template:Chembox Footer/trackingTemplate:Short description
Gold(III) fluoride is an inorganic compound of gold and fluorine with the molecular formula Page Module:Chem2/styles.css has no content.AuF3. It is an orange solid that sublimes at 300 °C.[4] It is a powerful fluorinating agent. It is very sensitive to moisture, yielding gold(III) hydroxide and hydrofluoric acid.
Preparation
AuF3 can be prepared by reacting AuCl3 with F2 or BrF3.[3]
Structure
The crystal structure of AuF3 consists of spirals of square-planar AuF4 units.[5]
| File:Gold-trifluoride-unit-cell-3D-balls.png | File:Gold-trifluoride-3D-balls.png | File:Gold-trifluoride-coordination-3D-balls.png | File:Gold-trifluoride-spiral-top-faded-3D-balls.png | File:Gold-trifluoride-spiral-side-3D-balls.png |
| AuF3 unit 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 |
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, Florida: CRC Press. pp. 4–59. ISBN 0-8493-0594-2.
- ^ Page Module:Citation/CS1/styles.css has no content.Victor Lenher (1903). "Fluoride of Gold". Journal of the American Chemical Society. 25 (11): 1136–1138. doi:10.1021/ja02013a004.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Inis C. Tornieporth-Oetting; Thomas M. Klapötke (1995). "Laboratory Scale Direct Synthesis of Pure AuF3". Chemische Berichte. 128 (9): 957–958. doi:10.1002/cber.19951280918.
- ^ Page Module:Citation/CS1/styles.css has no content.Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. doi:10.1016/C2009-0-30414-6. ISBN 978-0-08-037941-8., p. 1184.
- ^ Page Module:Citation/CS1/styles.css has no content.F. W. B. Einstein; P. R. Rao; James Trotter; 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.
External links
- Page Template:Sister-inline/styles.css has no content.Script error: No such module "Sister project logo". Media related to Script error: No such module "Commons link". at Wikimedia Commons
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