Synthesis and crystal structure of Li{sub 3.17}(P{sub 0.69}Ge{sub 0.24}Mo{sub 0.07})O{sub 4}

The crystal structure of Li{sub 3.17}(P{sub 0.69}Ge{sub 0.24}Mo{sub 0.07})O{sub 4}, which was synthesized by the flux method under the action of an electric field with a potential difference of 0.8 V, was studied by X-ray diffraction on a Nonius Kappa CCD diffractometer (MoK{sub {alpha}} radiation, {lambda} = 0.71073 A, R = 0.0137). The crystal structure is based on a tetrahedral framework typical of {gamma}-Li{sub 3}PO{sub 4}. The framework of the new compound is formed by (P,Ge,Mo)O{sub 4} and LiO{sub 4} tetrahedra. The positions of additional Li atoms in the structure of Li{sub 3.17}(P{sub 0.69}Ge{sub 0.24}Mo{sub 0.07})O{sub 4} are found to be different from those in the structure of Li{sub 3.31}(P{sub 0.69}Ge{sub 0.31})O{sub 4}, which is synthesized in the absence of an electric field and also belongs to the {gamma}-Li{sub 3}PO{sub 4} structure type.