cis-Diaquatetrakis(1-butyl-1H-imidazole-κN³)nickel(II) dichloride

Abstract

In the title compound, [Ni(C7H12N2)4(H2O)2]Cl2, the nickel(II) ion has a distorted octa­hedral coordination environment. It is surrounded by three N atoms and one O atom occupying the equatorial plane, and one N and one O atom in the axial positions. The imidazole ring systems are inclined to one another with dihedral angles varying between 38.3 (4) and 74.1 (4)°. In the crystal, mol­ecules are linked via O—H⋯Cl hydrogen bonds involving one Cl− anion and the water mol­ecule in the equatorial plane, forming an inversion dimer-like arrangement. The water mol­ecule in the axial position is hydrogen-bonded to both Cl− anions. There are also a number of C—H⋯Cl hydrogen bonds present, forming a three-dimensional structure. All four alkyl chains are disordered over two positions with refined occupancy ratios of 0.395 (15):0.605 (15), 0.658 (14):0.342 (14), 0.332 (11):0.668 (11) and 0.622 (12):0.378 (12).