Palladium(Ⅱ) and Platinum(Ⅱ) Compounds Derived From Potentially Terdentate Ligands

1Introduction Transition metalcomplexes derived from potentially terdentate ligands have attracted great interest in the late years. Among all the examples described so far, those containing palladium(Ⅱ) or platinum(Ⅱ) and ligands holding three heteroatoms with different donor abilities are particularly relevant. In compounds of this kind, the potential hemilability1] of one of the terminal σ(M-donor atom) bonds, plays an important role in the view of their applications in homogeneous catalysis2]. On the other hand, it is well-known that in dimetallic complexes the presence of two different metals in a close vicinity may influence their mutual cooperation in a wide variety of processes3]. Besides that, some examples of the utility of chiral palladium( Ⅱ ) as well as platinum( Ⅱ ) complexes as precursors for organic and/or organometallic synthesis, as chiral recognitors or discriminators, or even in Bio-Medicine have also been reported4- 6]. However, chiral heterodimetallic compounds holding ferrocenyl units and potentially terdentate ligands are scarce.