Acta Cryst. (2007). E63, m3030-m3031  [ doi:10.1107/S1600536807057649 ]

A copper(II) complex of 1,10-phenanthroline and enrofloxacin

J. Recillas-Mota, M. Flores-Alamo, R. Moreno-Esparza and J. Gracia-Mora

Abstract: The asymmetric unit of the title complex, aqua[1-cyclopropyl-7-(4-ethylpiperazin-1-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylato](1,10-phenanthroline)copper(II) nitrate dihydrate, [Cu(C₁₉H₂₁FN₃O₃)(C₁₂H₈N₂)(H₂O)]NO₃·2H₂O, contains one [Cu(erx)(phen)(H₂O)]⁺ cation, one NO₃^- anion and two solvent water molecules (erx is enrofloxacin and phen is 1,10-phenanthroline). The Cu^II ion adopts a slightly distorted square-pyramidal geometry, coordinated by two O atoms of the erx ligand and two N atoms of the phen ligand in the basal plane, and by a water molecule in the apical position. The Cu^II ion deviates from the basal plane by 0.1439 (7) Å. The piperazine ring belonging to erx has a slightly twisted chair conformation. Coordinated and uncoordinated water molecules participate in a hydrogen-bonding network including both cations and anions, to produce a three-dimensional supramolecular structure.

Online 16 November 2007

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