Chloro(triphenylphosphine)gold(I)
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| Chloro(triphenylphosphine)gold(I) | |
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| Identifiers | |
| CAS number | !14243-64-2 |
| Properties | |
| Molecular formula | C18H15AuClP |
| Molar mass | 494.71 g mol−1 |
| Appearance | Colorless solid |
| Melting point |
236-237 °C |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 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 [edit]
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 [edit]
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.
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References [edit]
- ^ 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
- ^ Baenziger, N. C.; Bennett, W. E.; Soborofe, D. M. (1976). "Chloro(triphenylphosphine)gold(I)". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 32 (3): 962. doi:10.1107/S0567740876004330.
- ^ Borissova, Alexandra O.; Korlyukov, Alexander A.; Antipin, Mikhail Yu.; Lyssenko, Konstantin A. (2008). "Estimation of Dissociation Energy in Donor−Acceptor Complex AuCl·PPh3via Topological Analysis of the Experimental Electron Density Distribution Function". The Journal of Physical Chemistry A 112 (46): 11519–22. doi:10.1021/jp807258d. PMID 18959385.
- ^ 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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