Diaquabis(2-chlorobenzoato-κO)bis(nicotinamide-κN1)cobalt(II)

Öznur Dincel,Tuncer Hökelek,Füreya Elif Öztürkkan,Barış Tercan,Hacali Necefoğlu

doi:10.1107/s1600536813004984

Öznur Dincel, Tuncer Hökelek + Show 3 more

Open Access

https://doi.org/10.1107/s1600536813004984

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Abstract

In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the CoII cation is located on an inversion center and is coordinated by two 2-chlorobenzoate anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the CoII cation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two pyridine N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate 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)°. Intramolecular O—H⋯O hydrogen bonding occurs between the carboxylate group and coordinating water molecule. In the crystal, intermolecular N—H⋯O, O—H⋯O and weak C—H⋯O hydrogen bonds link the molecules into a three-dimensional network.

Highlights

In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the CoII cation is located on an inversion center and is coordinated by two 2-chlorobenzoate anions, two nicotinamide (NA) ligands and two water molecules
The four O atoms in the equatorial plane around the CoII cation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two pyridine N atoms of the NA ligands in the axial positions
The dihedral angle between the carboxylate 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)

Summary

Structure Reports Online

Oznur Dincel,a Barıs Tercan,a Fureya Elif Ozturkkan,b Hacali Necefoglub and Tuncer Hokelekc*. In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the CoII cation is located on an inversion center and is coordinated by two 2-chlorobenzoate anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the CoII cation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two pyridine N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate 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). Intramolecular O—HÁ Á ÁO hydrogen bonding occurs between the carboxylate group and coordinating water molecule. Intermolecular N—HÁ Á ÁO, O—HÁ Á ÁO and weak C—HÁ Á ÁO hydrogen bonds link the molecules into a three-dimensional network

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