catena-Poly[[(2,2′-bipyridine)­manganese(II)]-μ3-4,4′-sulfonyl­dibenzoato]

In the title compound, [Mn(C14H8O6S)(C10H8N2)]n, the MnII ion is coordinated by four O atoms from three 4,4′-sulfonyl­dibenzoate (sdba) ligands and two N atoms from one 2,2′-bipyridine (2,2′-bipy) ligand in a distorted octa­hedral geometry. The manganese atoms are alternately bridged either by two sdba ligands, with an Mn⋯Mn separation of 12.284 (1) Å, or by two carboxyl­ate groups from two sdba ligands, with an Mn⋯Mn separation of 4.064 (1) Å, thus producing polymeric chains propagated in [101]. Weak inter­molecular C—H⋯O hydrogen bonds and π–π inter­actions [centroid–centroid distance of 3.730 (3) Å between the aromatic rings of neighbouring polymeric chains] further stabilize the crystal packing

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

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