Diaquabis{2-hydroxy-5-[(pyridin-2-yl)methylideneamino]benzoato-κ2N,N′}nickel(II) dihydrate

Abstract

In the title complex, [Ni(C13H9N2O3)2(H2O)2]·2H2O, the NiII atom, located on a twofold rotation axis, is in a distorted octahedral geometry, defined by four N atoms from two 2-hydroxy-5-[(pyridin-2-yl)methylideneamino]benzoate ligands and two O atoms from two water molecules. In the crystal, intermolecular O—H...O hydrogen bonds link the complex molecules and uncoordinated water molecules into a three-dimensional network. Intramolecular O—H...O hydrogen bonds are present between the hydroxy and carboxylate groups.