Poly[3-methylpyridinium [(μ₂-dihydrogen phosphito)bis(μ₃-hydrogen phosphito)dizinc]]

In the title compound, {(C 6 H 8 N)[Zn 2 (HPO 3 ) 2 (H 2 PO 3 )]} n , the constituent ZnO 4 , HPO 3 and H 2 PO 3 polyhedra of the inorganic component are linked into (010) sheets by Zn—O—P bonds (mean angle = 134.4°) and the layers are reinforced by O—H...O hydrogen bonds. The protonated templates are anchored to the inorganic sheets via bifurcated N—H...(O,O) hydrogen bonds.