Synthesis and structure of a novel gallium diphosphonate

One new gallium diphosphonate, Ga[(HPO3)(H0.5PO3)CHNH2Py]2 (1), has been hydrothermally synthesized and characterized by elemental analysis, IR, EDS, TGA–DSC, UV–vis, powder and single-crystal X-ray diffraction methods. Its structure contains Ga-centered octahedra which are linked together by the two single bondPO3 groups of the diphosphonate ligands to form one-dimensional infinite chain along a-axis. TGA–DSC measurement indicates that this compound is thermally robust.