Synthesis and characterization of a novel open-framework nickel zinc phosphite with intersecting three-dimensional 16-ring channels

A new inorganic-organic hybrid solid, Ni(DETA)(H2O)Zn-2(HPO3)(3) (FJ-14), has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, thermogravimetric analysis and magnetic susceptibility measurements. The compound is novel in the sense that it represents the first example of open-framework bimetallic phosphite. The structure of the compound consists of strictly alternating ZnO4 and HPO3 polyhedra through their vertices, forming zinc phosphite layers parallel to the bc plane. These layers are further pillared by Ni-2(DETA)(2)(H2O)(2)O-2 dinuclear units to generate a 3D framework with intersecting three-dimensional 16-ring channels.