Experimental Crystal data

disorder in solvent or counterion; R factor = 0.053; wR factor = 0.169; data-to-parameter ratio = 12.0. The NiII atom in the title salt, [Ni(C19H16N4O)2](NO3)2, is N,N0,O-chelated by two neutral Schiff base ligands in a distorted octahedral geometry. One nitrate ion interacts with the metal atom indirectly, in an outer-sphere type of coordination, through N—H O hydrogen bonds; the other nitrate ion does not engage in any interactions and is equally disordered over two positions in the crystal. Related literatur