Poly[μ3-aqua-aqua(μ3-3,5-dinitrobenzoato-κO1:O3:O5)caesium]

In the structure of the title complex, [Cs(C7H3N2O6)(H2O)2]n, the Cs salt of 3,5-dinitrobenzoic acid, the metal complex centres have have irregular CsO8 coordination, comprising two water molecules (one triply bridging and the other monodentate) and four O-atom donors from two nitro groups and one bridging carboxylate O-atom donor from the ligand. Intra-unit O—H...O hydrogen-bonding interactions involving both water molecules are observed in the three-dimensional polymeric complex structure