Synthesis, Structure and Magnetic Properties of a Novel Nickel(II) Radical Heterospin Complex with Salicylaldoxime

A novel heterospin complex containing both NiII and nitroxide radical ligands: [Ni(salox)2(NIT4Py)2] (1) (salox = salicylaldoxime, NIT4Py = 2-(4′-pyridyl)-4,4,5,5- tetramethyl-imidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized. The structure consists of neutral Ni(salox)2(NIT4Py)2 moieties bridged by intermolecular hydrogen bonds, forming a one-dimensional chain structure. Magnetic measurements show intramolecular antiferromagnetic interactions between NIT4Py and Ni2+ ion.