The inorganic–organic hybrid zinc phosphite poly[(μ 3 ‐hydrogen phosphito‐κ 3 O : O ′: O ′′)(piperidin‐1‐ium‐4‐carboxylate‐κ O )zinc(II)]

A new inorganic–organic hybrid zinc phosphite, [Zn(HPO 3 )(C 6 H 11 NO 2 )] n , has been synthesized hydrothermally. Protonated piperidin‐1‐ium‐4‐carboxylate (PDCA) was generated in situ by hydrolysis of the piperidine‐4‐carboxamide precursor. The P atom possesses a typical PO 3 H pseudo‐pyramidal geometry. The crystal structure features an unusual (3,4)‐connected two‐dimensional inorganic zinc–phosphite layer, with organic PDCA ligands appended to the sheets and protruding into the interlayer region. Helical chains of opposite chirality are involved in the construction of a puckered sheet structure.