BINUCLEAR COMPLEXES CONTAINING THIOSEMICARBAZONE LIGANDS. η³-ALLYL DICARBONYL COMPLEXES WITH ATTACHED FERROCENE-CARBALDEHYDETFFLOSEMICARBAZONE LIGANDS

Abstract

η³-Allyl-bis-acetonitrilechlorodicarbonylmolybdenum(II) reacts with the thiosemicarbazones Fc[sbnd]CH[sbnd]N[dbnd]NH[sbnd]C(S)[sbnd]NH[sbnd]R [Fc = (η⁵C₅H₅)₂Fe; R = H, CH₃ QH₅] in dichloromethane to give the complexes {(η,³-C₃H₅)MoCl(CO)₂[Fc[sbnd]CH[dbnd]N[sbnd]NH[sbnd]C(S)[sbnd]NH[sbnd]R]} [Fc = (η⁵-C₅H₅)₂Fe; R = H, CH₃, C₆H₅], by displacement of the acetonitrile ligands. When the reaction is carried out in ethanol in the presence of sodium ethanolate, the complexes {(η³-C₃H₅)Mo(CO)₂[Fc[sbnd]CH[dbnd]N[sbnd]NH[sbnd]C(S)[sbnd]NH[sbnd]R]} [Fc = (η⁵-C₅H₅)₂Fe; R = H, CH₃, C₆H₅ are prepared by displacement of the acetonitrile ligands and a substitution of the chlorine ligand.

Key Words:

• Bimetallic complexes
• thiosemicarbazones
• molybdenum
• ferrocenecarbaldehyde thiosemicarbazone