(Triphenylphosphine)iron tetracarbonyl is a coordination complex with the formula Fe(CO)4(PPh3) (Ph = C6H5). An off-white solid, this complex is derived from iron pentacarbonyl by replacement of one carbonyl ligand by triphenylphosphine (PPh3).
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3D model (JSmol)
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PubChem CID
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| Properties | |
| C22H15FeO4P | |
| Molar mass | 430.177 g·mol−1 |
| Appearance | white solid |
| Melting point | 262–266 °C (504–511 °F; 535–539 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis and use
editThe title complex can be prepared by reaction of iron pentacarbonyl or triiron dodecacarbonyl with triphenylphosphine:[1]
- Fe3(CO)12 + 3 P(C6H5)3 → 3 Fe(CO)4(P(C6H5)3)
The substitution is catalyzed by cobalt chloride.[2]
(Triphenylphosphine)iron tetracarbonyl is an intermediate in the synthesis of bis(triphenylphosphine)iron tricarbonyl. Both the mono- and bis(triphenylphosphine) complexes were originally employed in pioneering research on homogeneous catalysis by Walter Reppe.[3]
References
edit- ^ Clifford, A. F.; Mukherjee, A. K. (1966). "Iron Carbonyl Complexes of Triphenylphosphine, Triphenylarsine, and Triphenylstibine". Inorganic Syntheses. Vol. VIII. pp. 185–191. doi:10.1002/9780470132395.ch49. ISBN 9780470131671.
- ^ Albers, Michel O.; Singleton, Eric; Coville, Neil J. (1989). "Tetracarbonyliron(0) Complexes Containing Group V Donor Ligands". Inorganic Syntheses. Vol. 26. pp. 59–64. doi:10.1002/9780470132579.ch12. ISBN 9780470132579.
- ^ Reppe, Walter; Schweckendiek, Walter Joachim (1948). "Cyclisierende Polymerisation von Acetylen. III Benzol, Benzolderivate und hydroaromatische Verbindungen". Justus Liebigs Annalen der Chemie. 560: 104–116. doi:10.1002/jlac.19485600104.