Crystal structures and magnetic properties of complexes of M(NO3)2; MÂ =Â MnII, CoII, NiII, and CuII, with pyridine ligands carrying an aminoxyl radical

Four complexes of M(NO3)2(4NOPy-OMe)2, (4NOPy-OMe = 4-(N-tert-butyloxylamino)-2-(methoxymethylenyl)pyridine, and M=MnII, 1; CoII, 2; NiII, 3; CuII, 4), were prepared and fully characterized. The magnetic properties of all complexes were investigated by SQUID magneto/susceptometry.