Control of metal/ligand stoichiometry and structure in aminopyridinato complexes of zirconium: N-alkyl is better than trimethylsilylElectronic supplementary information (ESI) available: characterisation data. See http://www.rsc.org/suppdata/cc/b0/b006603f/

Abstract

N-Adamantyl-2-aminopyridines (HL) readily form C₂-symmetric aminopyridinato complexes with zirconium [ZrL₂X₂] (X = Cl, NMe₂, CH₂Ph, CH₂Bu^t) which are stable with respect to ligand redistribution and lead to catalysts for ethylene polymerisation with similar productivity to the related [Zr(benzamidinate)₂X₂] system.