Aqua(4,4′-bipyridine-κ<i>N</i>)bis(1,4-dioxo-1,4-dihydronaphthalen-2-olato-κ<sup>2</sup><i>O</i><sup>1</sup>,<i>O</i><sup>2</sup>)zinc 4,4′-bipyridine monosolvate dihydrate
Acta crystallographica. Section E