Acta Cryst. (2009). E65, m766-m767  [ doi:10.1107/S1600536809021795 ]

Diaquabis(2-bromobenzoato-O)bis(N,N-diethylnicotinamide-N¹)nickel(II)

T. Hökelek, F. Yilmaz, B. Tercan, F. E. Özbek and H. Necefoglu

Abstract: In the monomeric centrosymmetric title Ni^II complex, [Ni(C₇H₄BrO₂)₂(C₁₀H₁₄N₂O)₂(H₂O)₂], the Ni^II ion is located on an inversion center. The asymmetric unit contains one 2-bromobenzoate ligand, one diethylnicotinamide (DENA) ligand and one coordinated water molecule. The four O atoms in the equatorial plane around the Ni^II ion form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by two N atoms of two DENA ligands in the axial positions. The dihedral angle between the benzene ring and the attached carboxylate group is 87.73 (15)°, while the pyridine and benzene rings are oriented at a dihedral angle of 42.48 (7)°. In the crystal structure, O-HO hydrogen bonds link the molecules into a two-dimensional network parallel to (10). In addition, C-HO hydrogen bonds are observed.

Online 13 June 2009

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