COMPLEXES WITH HYDROCARBON BRIDGES .23. HETEROBIMETALLIC COMPLEXES WITH FERROCENYL AND (PH3P)(OC)(CP)FEC(O)CH2 GROUPS - SYNTHESIS AND STRUCTURE OF (ETA-5-C5H5)FE[ETA-5-C5H4C(O)RE(CO)5], (PPH3)(OC)(CP)FEC(O)CH2((ETA-6-C7H7)M(CO)3 AND [ETA-5-C5H4C(O)(CH3]FE[ETA-5-C5H4C(O)CH2(ETA-6-C7H7)M(CO)3] (M = CR, MO)

The reactions of the organometallic enolates [eta-5-C5H4C(O)CH3]Fe(eta-5-C5H4C(O)CH2]- and [Cp(Ph3P)(OC)FeC(O)CH2]- with [(OC)3M(C7H7)]+ (M = Cr, Mo) proceed with C-C coupling and give the complexes (eta-5-C5H4C(O)CH3)Fe[eta-5-C5H4C(O)CH2(eta-6-C7H7)M(CO)3 (1a,b) and Cp(Ph3P)(OC)FeC(O)CH2(eta-6-C7H7)M(CO)3 (2a,b), respectively. CpFe[eta-5-C5H4C(O)Re(CO)5] (3) is obtained from CpFe[eta-5-C5H4C(O)Cl] and Re(CO)5-. The structures of 1b and 3 have been determined by X-ray diffraction.