Preorganized Bimetallic Nickel Complexes of Pyrazolate-Bridged Ligands for Cooperative Substrate Transformation

Abstract

During the last decades, β-diketiminates, also referred to as "nacnac" ligands, have raised substantial interest among chemists due to their simple preparation and elec tronic and steric tunability. Therefore, the combination of two of these versatile moieties with pyrazolate as a linker unit was envisioned to furnish a ligand capable of preorgani zation upon metal complexation. This chapter deals with the preparation and character ization of the trianionic, hexadentate ligand system and the establishment of a dinuclear nickel complex as the foundation for further promising chemistry.