Bis(μ-2-carboxy-5-nitrobenzoato-κ<sup>2</sup><i>O</i><sup>1</sup>:<i>O</i><sup>1</sup>)bis[(2,2′-bipyridine-κ<sup>2</sup><i>N</i>:<i>N</i>′)chloridocopper(II)] dihydrate
Acta crystallographica. Section E