M(HO)(POCHOH)·(HO) (M = Co, Mn, Zn, Cu): a new series of layered metallophosphonate compounds obtained from 6-hydroxy-2-naphthylphosphonic acid.

Four new metallophosphonates M(HO)(POCHOH)·(HO) (M = Mn, Co, Cu, Zn) were obtained as single crystal and polycrystalline powders by hydrothermal synthesis from the precursors 6-hydroxy-2-naphthylphosphonic acid and the corresponding metal salts. These analogous hybrids crystalized in the space group P12/c1 in a lamellar structure. Their layered structures consisted of inorganic [M(HO)(POC)] layers stacked with organic bilayers of 6-hydroxy-2-naphthyl moieties "HO-CH" and free water molecules.