Recombination of an Fe−Si−P Linkage to an Fe−P−Si Linkage through an Isolable Intermediate Phosphasilaferracyclopropane

Phosphasilaferracycle [Cp*(CO)Fe{κ2Si,P-SiMe2PPh2}], prepared upon irradiation of [Cp*(CO)2FeSiMe2PPh2], was converted to [Cp*(CO)2FeP(Ph)SiMe2Ph] under mild conditions. The unusual recombination of the iron, silicon, and phosphorus cores could be achieved through a sequence of 1,2- and 1,3-group migrations in an FeSiP system.