Tricarbonylbis(triphenylphosphine)iron(0) is a coordination complex with the formula Fe(CO)<sub>3</sub>(PPh<sub>3</sub>)<sub>2</sub> (Ph = C<sub>6</sub>H<sub>5</sub>). A yellow solid, this complex is derived from iron pentacarbonyl by replacement of two carbonyl ligands by triphenylphosphine (PPh<sub>3</sub>).
The title complex can be prepared by reaction of triiron dodecacarbonyl with excess triphenylphosphine:
(Triphenylphosphine)iron tetracarbonyl is an intermediate in the synthesis of this compound. The title complex can also be produced more efficiently by borohydride-catalyzed substitution of iron pentacarbonyl.
Protonation gives the ferrous hydride:
Both the mono- and bis(triphenylphosphine) complexes were originally described by Walter Reppe.