Diaqua­bis(N,N-diethyl­nicotinamide-κN (1))bis­(4-methyl­benzoato-κO)cobalt(II)

In the centrosymmetric mononuclear title complex, [Co(C(8)H(7)O(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], the Co(II) ion is located on an inversion center. The asymmetric unit contains one 4-methyl­benzoate (PMB) anion, one N,N-diethyl­nicotinamide (DENA) ligand and one coordinated water mol­ecule. The four O atoms in the equatorial plane around the Co(II) ion form a slightly distorted square-planar arrangement, while the slightly distorted octa­hedral coordination is completed by the two pyridine N atoms of the DENA ligands in the axial positions. The dihedral angle between the carboxyl­ate group and the attached benzene ring is 3.73 (14)°, while the pyridine and benzene rings are oriented at a dihedral angle of 77.28 (6)°. In the crystal structure, inter­molecular O—H⋯O and C—H⋯O hydrogen bonds link the mol­ecules into a two-dimensional network parallel to (001). The structure is further stabilized by π–π contacts between the pyridine rings [centroid–centroid distance = 3.544 (1) Å] and weak C—H⋯π inter­actions involving the benzene ring.