Nickel(II) Complexes of Bis(2-diphenylphosphinophenyl)amide

A series of nickel(II) alkyl and aryl complexes supported by the bis(2-diphenylphosphinophenyl)amide ligand, [PNP] -, have been prepared, including those in which the alkyl contains β-hydrogen atoms. The stability of these compounds toward β-elimination is attributed to the rigidity and robustness of the new tridentate amido diphosphine ligand.