Bis[μ-4-(4-carboxyphenoxy)phthalato]bis[triaquanickel(II)]

In the centrosymmetric binuclear title compound, [Ni2(C15H8O7)2(H2O)6], the NiII ion is in a distorted octahedral coordination geometry with O6 donors, three from three water molecules, the others from three carboxylate groups of two ligands. Extensive O—H...O hydrogen bonding connects the molecules into a three-dimensional supramolecular structure