Acta Cryst. (2005). E61, m66-m68  [ doi:10.1107/S1600536804031861 ]

The mixed-ligand copper(II) complex (2,2'-bipyridine)[1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(piperazin-4-ium-1-yl)quinoline-3-carboxylato]nitratocopper(II) nitrate dihydrate

Y.-Q. Wei, Z.-F. Zhou, B.-T. Zhuang, K.-C. Wu, C.-P. Liu and M.-X. Zhang

Abstract: The drug norfloxacin and ligand 2,2'-bipyridine coordinate to copper(II) yielding a mixed-ligand complex, [Cu(C₁₆H₁₈FN₃O₃)(NO₃)(C₁₀H₈N₂)](NO₃)·2H₂O or [Cu(H-Norf)(NO₃)(bpy)](NO₃)·2H₂O. The Cu^II atom has a five-coordinate environment with square-based pyramidal geometry, which involves two N atoms from the 2,2'-bipyridine ligand, two O atoms from the norfloxacinate ligand and one nitrate O atom. Weak interactions between O and Cu result in a centrosymmetric dimer.

Online 11 December 2004

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