Reaktionen von Silylphosphanen mit Halogenokomplexen von Übergangsmetallen: Synthese, Struktur und Eigenschaften von Komplexen des Typs cis-X(CO)4Mn{PPh3-n(SiMe3)n} (n = 1 -3 ) und [{Cp(CO)2Fe}2PPhR]X (R = Ph, H) bzw. [{Cp(CO)2Fe}3PH]X (X = CI, Br, I) / Reactions of Silylphosphanes with Halogeno Complexes of Transition Metals: Synthesis, Structure and Properties of Complexes cis-X (CO)4 Mn{PPh3-n(SiMe3)n} (n = 1 -3 ), [{Cp(CO)2 Fe}2 PPhR]X (R = Ph, H) and [{Cp(CO)2 Fe}3 PH]X (X = Cl, Br, I)

Abstract

Abstract The reactions of pentacarbonylmanganese halides (CO)5MnX (X = Cl, Br, I) with the silyl- phosphanes Ph3-nP(SiMe3)n (n = 1 -3) at ambient temperature result in the elimination of one CO ligand and the formation of c/s-configurated substitution products X(CO)4Mn{PPh3-n(SiMe3)n). No CO-substitution, but Me3SiX-elimination is observed in the reaction of Ph3-nP(SiMe3)„ with the dicarbonylcyclopentadienyliron halides CpFe(CO)2X to give the di- and triferriophosphonium halides [{Cp(CO)2Fe}2PPhR]X (R = Ph, H) and [{Cp(CO)2Fe}3PH]X (X = Cl, Br, I). The mass, IR and NMR spectra are reported and discussed. The crystal structures of Cis-I(CO)4MnPPh2SiMe3 and [(Cp(CO)2Fe)2PPh2]I have been determined.