Heterodi- and heterotrimetallic compounds containing five-membered rings and σ(Pd-Csp(2),ferrocene) bonds.: X-ray crystal structure of the meso-form of [Pd2{Fe[(η5-C5H3)-C(CH3)=N-C6H5]}2Cl2(PPh3)2]

The syntheses and characterization of heterodi- and heterotrimetallic complexes of general formulas [Pd{[(eta(5)-C5H3)-C(R)=N-R']Fe[(eta(5)-C5H4)-C(R)=N-R']}Cl(PPh3)], [Pd{[(eta(5)-C5H3)-C(C6H5)=N- C6H5]Fe[(eta(5)-C5H4)-C(O)=N-C6H5]}Cl(PPh3)], and [Pd-2{Fe[(eta(5)-C5H3)-C(R)= N-R'](2)}Cl-2(PPh3)(2)] {with R = H, CH3, or C6H5 and R'= phenyl or benzyl groups} are reported. The X-ray crystal structure of the meso-form of [Pd-2{Fe[(eta(5)-C5H3)-C(CH3)=N-C6H5](2)}Cl-2(PPh3)(2)] (2b) is also described.