Chloro(triphenylphosphine)gold(I)
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(Redirected from Gold phosphine complex)
| Skeletal formula of chloro(triphenylphosphine)gold(I) | |
| Space-filling model of the chloro(triphenylphosphine)gold(I) molecule | |
| Identifiers | |
|---|---|
14243-64-2  |
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| Properties | |
| C18H15AuClP | |
| Molar mass | 494.71 g·mol−1 |
| Appearance | Colorless solid |
| Melting point | 236–237 °C (457–459 °F; 509–510 K) |
| Vapor pressure | {{{value}}} |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Chloro(triphenylphosphine)gold(I) is the coordination complex with the formula (Ph3P)AuCl. This colorless solid is the complex of triphenylphosphine and gold(I) chloride.
Preparation and structure
The complex is prepared by reducing chloroauric acid with triphenylphosphine in 95% ethanol:[1]
- HAuCl4 + H2O + 2 PPh3 → (Ph3P)AuCl + Ph3PO + 3 HCl
The complex adopts a linear coordination geometry, which is typical of most gold(I) compounds.[2][3]
Reactivity
It is a common reagent in gold chemistry. Many related gold complexes (often incorrectly called salts) can be prepared including the trifluoromethanesulfonate and the nitrate.[4]
Triphenylphosphine gold triflate (Ph3PAuOTf) catalyzes certain rearrangement reactions in organic synthesis.
File:Reaction scheme of gold(I) and gold(III) organometallic compounds.png
Reaction scheme of Au(I) and Au(III) organometallic compounds, with (Ph3P)AuCl as the precursor.
References
- ↑ Pierre Braunstein, Hans Lehner, Dominique Matt "A Platinum-Gold Cluster: Chloro-1κCl-Bis(Triethylphosphine-1κP)Bis(Triphenyl- Phosphine)-2κP, 3κP-Triangulo- Digold-Platinum(1 +) Trifluoromethanesulfonate" Inorganic Syntheses, 1990, Volume 27, Pages 218–221. doi: 10.1002/9780470132586.ch42
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- ↑ A. M. Mueting, B. D. Alexander, P. D. Boyle, A. L. Casalnuovo, L. N. Ito, B. J. Johnson, L. H. Pignolet "Mixed-Metal-Gold Phosphine Cluster Compounds" Inorganic Syntheses, 1992, Volume 29, Pages 279–298, 2007. doi:10.1002/9780470132609.ch63
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