Poly[[[(1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ato)manganese(II)]-μ(3)-4,4'-oxydibenzoato] monohydrate].

In the title compound, {[Mn(C(16)H(18)N(3)O(3))(C(14)H(8)O(5))]·H(2)O}(n), the unique Mn(II) ion is coordinated by two O atoms from a chelating 1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ate ligand and three O atoms from three 4,4'-oxydibenzoate ligands, forming a distorted square-pyramidal coordination environment. In the crystal structure, centrosymmetric dinuclear manganese units are linked via 4,4'-oxydibenzoate ligands into one-dimensional chains; these chains are, in turn, connected via inter-molecular N-H⋯O and O-H⋯O hydrogen bonds to form a two-dimensional supra-molecular network. The O atom of the solvent water mol-ecule is disordered over two sites with equal occupancies; the attached H atoms are common to both sites.