Bimetallic Reactivity. Preparation and Characterization of Symmetrical Bimetallic Complexes of a Binucleating Macrocyclic Ligand, Cytim, Containing 6- and 4-Coordinate Sites

Abstract

A binucleating macrocylic ligand, cytim, incorporating 6- and 4-coordinate sites has been prepared. The two metals arc bridged by phenolic oxygen ligands, and the 4-coordinate site is completed by a trimethylenediimine link. The 6-coordinate site carries two 2-methylenepyridyl arms and is completed by a trimethylenediamine chelate. This ligand was constructed in order to determine whether the trimethylenediamine chelate in the 6-coordinate site would produce symmetrical complexes where the pyridine ligands lie trans above and below the mean molecular plane