catena-Poly[[aqua(benzoato-κ2O,O′)(benzoic acid-κO)calcium]-μ3-benzoato-κ4O:O,O′:O′]

In title compound, [Ca(C7H5O2)2(C7H6O2)(H2O)]n, the eightfold-coordinated CaII ion is bonded to four carboxylate O atoms from two benzoate ions, an O atom from benzoic acid and a water O atom. One of the carboxylate groups bridges adjacent Ca2+ ions, forming a polymeric ribbon structure parallel to [010]. In the crystal, the benzoate anions and water molecule interact by way of inter- and intramolecular O—H...O hydrogen bonds