摘要
In the title compound, [Ni(C6H12N4O3)2](NO3)2﹞4H2O, the NiII cation is located on an inversion center and is N,O,O∩-chelated by two nitrilotris(acetamide) molecules in a distorted octahedral geometry. The complex cations, nitrate anions and lattice water molecules are connected by O〞H...O and N〞H...O hydrogen bonds, forming a three-dimensional supramolecular structure.