Bis[1-cyclopropyl-6-fluoro-4-oxo-7-(1-piperazin-4-ium-1-yl)-1,4-dihydroquinoline-3-carboxylate-κ<sup>2</sup><i>O</i><sup>3</sup>,<i>O</i><sup>4</sup>]bis(nitrato-κ<i>O</i>)copper(II)
Acta crystallographica. Section E