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Updated: May 4, 2026

Synthesis of a Water-soluble Metal–Organic Complex Array
Published on: October 8, 2016
cis-Di-aqua-tetra-kis-(1-butyl-1H-imidazole-κN (3))nickel(II) dichloride
P S Kannan1, A S Ganeshraja2, K Rajkumar2
1Department of Physics, S. M. K. Fomra Institute of Technology, Thaiyur, Chennai 603 103, India.
Abstract:
In the title compound, [Ni(C7H12N2)4(H2O)2]Cl2, the nickel(II) ion has a distorted octa-hedral 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, mol-ecules are linked via O-H⋯Cl hydrogen bonds involving one Cl(-) anion and the water mol-ecule in the equatorial plane, forming an inversion dimer-like arrangement. The water mol-ecule 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).
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