Chelating amides of lithium. Synthesis, structure and coordination chemistry

A limited review of the use of mixed-donor ligands that contain amides is presented. By combining amides with phosphines and amines in a chelating array, a variety of tridentate and macrocyclic ligands have been prepared. The synthesis and structures of a variety of lithium derivatives are presented since these are the typical starting materials in the preparation of transition metal? main group and lanthanide complexes that incorporate these ligand systems. It is found that the structures of these lithium derivatives depend on the nature of the other donors present in the chelating array. (C) 1998 Elsevier Science Ltd. All rights reserved.