A 3D Silverton-Type Polyoxomolybdate Based on {PrMo(12)O(42)}: Synthesis, Structure, Photoluminescence and Magnetic Properties.

A three-dimensional (3D) Silverton-type polyoxomolybdate (POMo) with the formula of NH(4){Mn(4)[PrMo(12)O(42)]}·18H(2)O (1) was successfully isolated and well characterized by single crystal X-ray diffraction, X-ray powder diffraction pattern, infrared spectrum, thermogravimetric and elemental analyses. The inorganic building block {PrMo(12)O(42)} has formed 3D frameworks via the {MnO(6)} linker. The excitation of compound 1 in solid state at 375 nm displays red emission. Moreover, variable temperature magnetic susceptibility measurements indicate that the magnetic behavior in compound 1 is dominated by antiferromagnetic interactions.