(Triphenylphosphine)iron tetracarbonyl
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C18H15P.4CO.Fe/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;4*1-2;/h1-15H;;;;;
    Key: GHXDZMLBRWBQAM-UHFFFAOYSA-N
  • [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.[Fe]
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).
Infobox references

(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).

Synthesis and use

The 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

  1. ↑ 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.
  2. ↑ 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.
  3. ↑ 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.
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