Synthesis and Structures of Two New Molybdophosphates

A one-dimension solid and a two-dimension solid consisting of polyoxoanions bridged by {CoO3N2} and {CoO4} groups respectively have been synthesized by the hydrothermal method and structurally characterized by X-Ray crystallography. Each structure has the [(PO4)4Mo6O15]12- cluster that is commonly observed in many molybdophosphates. In compound 1, [(PO4)4Mo6O15]12- clusters are linked by {CoO3N2} groups to form a chain-like structure, and the chains are hydrogen-bonded into a network. Compound 2 is a layer structure with channnels constructed from [(PO4)4Mo6O15]12- clusters and {CoO4} groups, the organic molecules and the lattice water molecules are distributed disorderly in the interlamellar region and form strong hydrogen bonds with inorganic framework. The IR and the fluorescent spectra were investigated and discussed.