Crystal structure ofcatena-poly[[diaqua(4,5-diazafluoren-9-one-κ2N,N′)cadmium]-μ-2-hydroxy-5-sulfonatobenzoato-κ3O1,O1′:O5]

Abstract

In the polymeric title compound, [Cd(C7H4O6S)(C11H6N2O)(H2O)2]n, the Cd2+atom is seven-coordinated by two water O atoms, by three O atoms from two 2-hydroxy-5-sulfonatobenzoate (Hssal2−) ligands and by two N atoms from a 4,5-diazafluoren-9-one (Dafo) ligand in a distorted pentagonal–bipyramidal geometry. The Cd2+atoms are monodentately coordinated by the sulfonate group of one Hssal2−ligand and bidentately coordinated by the carboxylate group of another Hssal2−ligand, generating zigzag chains running parallel to [010]. The chains are linked by O—H...O hydrogen bonds into a three-dimensional architecture.