Poly[4,4′-imino­dipyridinium [di-μ4-isophthalato-κ4O:O′:O′′:O′′-di-μ3-iso­phthal­ato-κ3O:O′:O′′;κ4O:O′:O′′,O′′′-trizinc(II)] dihydrate]

In the title compound, {(C10H11N3)[Zn3(C8H4O4)4]·2H2O}n, divalent Zn atoms are linked into trinuclear units featuring tetra­hedral, octa­hedral and distorted tetrahedral, octahedral and square-pyramidal coordination geometries. These trinuclear units are connected by isopthalate dianions into [Zn3(isophthalate)4]n2n− anionic layers, which aggregate into the three-dimensional structure via hydrogen-bonding pathways mediated by doubly protonated 4,4′-imino­dipyridinium cations and water mol­ecules of crystallization. One solvent water mol­ecule was found to be disordered over two positions, each with a 50% site-occupancy factor.