Nickel (II) complexes bearing 2-ethylcarboxylate-6-iminopyridyl ligands: synthesis, structures and their catalytic behavior for ethylene oligomerization and polymerization

A series of nickel (II) complexes bearing 2-carboxylate-6-iminopyridine ligands were synthesized and characterization by IR, microanalysis and X-ray diffraction. Upon activation with methylaluminoxane (MAO), these complexes display good catalytic activities for ethylene oligomerization and polymerization.