Poly[tetra­kis(μ(4)-4,6-dimethyl-5-nitro­benzene-1,3-dicarboxyl­ato-κ(2) O (1):O (1′):O (3):O (3′))bis­(pyridine-κN)dizinc]

In the title complex, [Zn(2)(C(10)H(7)NO(6))(2)(C(5)H(5)N)(2)](n), the repeat unit is a centrosymmetic tetra-carboxyl­ato-O,O’-bridged dimer in which each Zn(II) atom is five-coordinated by four O atoms from different dianionic 4,6-dimethyl-5-nitro­iso­phthalate ligands [Zn—O = 2.0283 (18)–2.0540 (19) Å] and one N atom from a pyridine mol­ecule [Zn—N = 2.030 (2) Å] in the axial site of a slightly distorted square-pyramidal coordination sphere. The Zn⋯Zn separation is 2.9750 (6) Å. The complex dimers are extended into a two-dimensional polymeric structure parallel to (100) through bridges provided by the second carboxyl­ate group of the ligand.