cis-Di­aqua­tetra­kis­(1-butyl-1H-imidazole-κN (3))nickel(II) dichloride

In the title compound, [Ni(C(7)H(12)N(2))(4)(H(2)O)(2)]Cl(2), 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).