4-(3-Carb­oxy-1-ethyl-6-fluoro-4-oxo-14-dihydroquinolin-7-yl)piperazin-1-ium 4-carb­oxy­benzoate–benzene-14-dicarb­oxy­lic acid (2/1)

摘要

In the title compound, C16H19FN3O3 ⁺·C8H5O4 ⁻·0.5C8H6O4, the benzene-1,4-dicarb­oxy­lic acid mol­ecule is located on a centre of symmetry. In the crystal, the mol­ecules and ions are connected by inter­molecular C—H⋯O and O—H⋯O hydrogen bonds and π–π stacking inter­actions [with a centroid–centroid distance of 3.402 (2) Å], generating a three-dimensional supra­molecular structure.