Poly[[diaqua­bis­(μ(3)-3,5-dicarb­oxy­benzo­ato-κ(3) O (1):O (3):O (5))bis­(μ(3)-5-carb­oxy­ben­zene-1,3-dicarboxyl­ato-κ(3) O (1):O (3):O (5))tetrakis(methylformamide-κO)tri­man­ganese(II)] dimethyl­formamide tetra­solvate]

In the title complex, {[Mn(3)(C(9)H(4)O(6))(2)(C(9)H(5)O(6))(2)(C(3)H(7)NO)(4)(H(2)O)(2)]·4C(3)H(7)NO}(n), one Mn(II) ion sits on an inversion center, and is six-coordinated by four O atoms from four anions (monoanionic and dianionic) derived from benzene-1,3,5-tricarboxylic acid and by two dimethyl­formamide (DMF) mol­ecules in a slightly distorted octa­hedral geometry. The other Mn(II) ion is six-coordinated by four O atoms from four monoanionic and dianionic ligands, one DMF mol­ecule and one water mol­ecule in a distorted octa­hedral geometry. The monoanionic and dianionic ligands bridge the Mn(II) ions, resulting in the formation of a layered structure parallel to (111) in which all of the carboxyl­ate groups of the anionic ligands coordinate the Mn(II) ions in a monodentate manner. Intra- and inter­molecular O—H⋯O hydrogen bonds are present in the structure.