Diaqua-bis[4-(dimethyl-amino)benzoato-O](isonicotinamide-N ¹)manganese(II)

The title Mn^II complex, [Mn(C₉H₁₀NO ₂)₂(C₆H₆N₂O)(H ₂O)₂], contains two 4-(dimethylamino)benzoate (DMAB) anions, one isonicotinamide (INA) ligand and two coordinated water molecules. One of the DMAB anions acts as a bidentate ligand, while the other is monodentate. The four O atoms in the equatorial plane around the Mn atom form a highly distorted square-planar arrangement, while the distorted octa-hedral coordination geometry is completed by the N atom of the INA ligand and the O atom of the second water mol-ecule in the axial positions. In the crystal structure, strong inter-molecular O - H⋯O, O - H⋯N and N - H⋯O hydrogen bonds link the molecules into a two-dimensional network parallel to (010). Two weak C - H⋯π inter-actions are also found.