A Novel Three-Dimensional Inorganic Open-Framework Constructed From [Mo4o16](N)(8n-) Chains Linked Through Ag+

A novel 3-D inorganic bimetallic compound Ag2MO2O7 has been hydrothermally synthesized and structurally characterized by X-ray diffraction. The compound crystallizes in monoclinic, space group P2(1)/c with a = 6.1274(3), b = 13.1836(6), c = 7.8780(3) angstrom beta, = 110.673(3)degrees, V = 595.42(5) angstrom(3), Z = 4, M-r= 519.62, D-c. = 5.797 g/cm(3), F(000) = 936, mu(MoK alpha) = 10.579 mm(-1), F(000) = 936, the final R = 0.0204 and wR = 0.0477 for 1268 observed reflections with i > 2 alpha(I). In the title compound, the [MO4O16](n)(8n-) chains are linked through O-Ag-O bridging bonds to form a 3D network. It represents an unprecedented linking mode between the isopolyoxomolybdate chain and the transition metal oxide cluster. IR, TGA and fluorescence properties of the title compound are also studied.