Tetraaquabis[2-(3-benzoylphenyl)-propanoato-κO] cobalt(II) monohydrate

The title compound, [Co(C16H13O3)(2)(H2O)(4)] center dot H2O, is a transition metal complex of ketoprofen [ 2-(3-benzoylphenyl)propanoic acid], a well known nonsteroidal antiinflammatory drug. The asymmetric unit consists of two half-complexes and one water molecule of crystallization. The Co-II atoms are located on inversion centers and show an octahedral coordination geometry, defined by two carboxylate O atoms from two ketoprofenate ligands and four water molecules. The molecules are connected via O - H center dot center dot center dot O hydrogen bonds into a three-dimensional network.