Kohlenwasserstoffverbrückte Metallkomplexe, XXIV. Pentacarbonylrhenio-substituierte Thiophen-, Cyclohexadienyl-und Benzol-Komplexe von Mangan, Rhenium und Eisen/Hydrocarbon Bridged Complexes, XXIV. Pentacarbonylrhenio Substituted Thiophene, Cyclohexadienyl and Benzene Complexes of Manganese, Rhenium and Iron

Abstract

Abstract The addition of pentacarbonylrhenate to [(OC)3Mn(thiophene)]+, [(OC)3M(η6-C6H4R2)]+ (M = Mn, Re; R = H, Me, Cl) yields the σ,π-hydrocarbon bridged complexes (OC)3Mn(μ-η4:η1-C4H4S)Re(CO)5 and (OC)3M(μ-η6:η1-C6H4R2)Re(CO)5, respectively. The latter complexes have also been obtained from (OC)5MFBF3 (M = Mn, Re) and C6H5Re(CO)5. The fluxional behaviour of the cyclohexadienyl bridged complexes is probably due to a 1,2-shift of the Re(CO)5 group. The reaction of [Re(CO)5]-with [(η5-C5H5)Fe(η6-p-C6H4(R)Cl)]+ (R = H, Me, Cl) proceeds with substitution of chlorine to give the heterobimetallic compounds [(η5-C5H5)Fe[μ-η6:η1-C6H4(R)]Re(CO)5]+.