Synthesis and structure of poly[(μ3-hydrogen phosphato)(pyridine)-zinc(II)]

Acta Crystallogr E Crystallogr Commun. 2025 Oct 24;81(Pt 11):1040-1043. doi: 10.1107/S2056989025008308. eCollection 2025 Nov 1.

Abstract

The title compound, [Zn(HPO4)(C5H5N)] n or pyZn(HPO4) (1), was prepared from the solvothermal reaction of [Mo3O2(O2CCH3)6(H2O)3]ZnCl4 and H3PO4 in a mixture of pyridine and water. It displays an infinite ladder structure built of alternately arranged ZnO3N and PO3(OH) tetra-hedra, linked O-H⋯O hydrogen bonds into supra-molecular sheets. C-H⋯O inter-actions between CH groups of the pyridine rings and phosphate groups connect the sheets into a three-dimensional framework structure.

Keywords: crystal structure; hydrogen bond; metal phosphate; supra­molecular structure; zinc.