title: Diaqua-bis-(2-chloro-benzoato-κO)bis-(nicotinamide-κN (1))cobalt(II).
abstract: In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the Co(II) cation is located on an inversion center and is coord-inated by two 2-chloro-benzoate anions, two nicotin-amide (NA) ligands and two water mol-ecules. The four O atoms in the equatorial plane around the Co(II) cation form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two pyridine N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 29.7 (4)°, while the pyridine and benzene rings are oriented at a dihedral angle of 83.17 (15)°. Intra-molecular O-H⋯O hydrogen bonding occurs between the carboxyl-ate group and coordinating water mol-ecule. In the crystal, inter-molecular N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.
authors.affiliation: Department of Physics, Karabük University, 78050 Karabük, Turkey.
authors.forename: Oznur
authors.initials: O
authors.lastname: Dincel
authors.forename: Barış
authors.initials: B
authors.lastname: Tercan
authors.forename: Füreya Elif
authors.initials: FE
authors.lastname: Oztürkkan
authors.forename: Hacali
authors.initials: H
authors.lastname: Necefoğlu
authors.forename: Tuncer
authors.initials: T
authors.lastname: Hökelek