Dinuclear zinc complexes with chiral tetra-azane ligands: Synthesis, structures and catalytic properties for ring-opening polymerization of cyclic esters

A series of dinuclear zinc complexes supported by chiral anilido-aldimine ligands have been synthesized and characterized. The structures of complex 1 were determined by X-ray crystallography. The dinuclear complexes 1-3 were found to be efficient catalysts for the ROP of cyclic esters in the presence of BnOH.