metal-organic compounds
Both carboxylate groups chelate to the Cd atom in the title compound, [Cd(C9H7O3)2(C6H12N4)2(H2O)]·3H2O. The four O atoms involved in chelation and one water molecule form a pentagonal plane around the Cd atom, while the N atoms of the hexamethylenetetramine ligands occupy the axial sites of the pentagonal bipyramid. Hydrogen bonds link the molecules of the complex with the solvent water molecules to form a three-dimensional network.