catena-Poly[[diaqua­manganese(II)]-μ-pyridine-2,4,6-tricarboxyl­ato-κ(5) N,O (2),O (6):O (4),O (4′)]

In the title compound, [Mn(C(8)H(2)NO(6))(H(2)O)(2)](n), each pyridine-2,4,6-tricarboxyl­ate (tpc) ligand bridges two Mn(II) ions with the formation of polymeric chains located on a twofold rotation axis. Each Mn(II) ion is coordinated by two O and one N atoms from one tpc ligand, two O atoms from another ligand and two water mol­ecules in a distorted penta­gonal–bipyramidal geometry. The Mn—N [2.243 (2) Å] and Mn—O [2.206 (2)–2.3123 (16) Å] bond lengths are normal. The coordinated water mol­ecules link neighbouring polymeric chains via O—H⋯O hydrogen bonds into a two-dimensional framework parallel to the bc plane.