Abstract
A novel Hg-Pr compound [Hg3PrCl9(HIA)(IA)3]nnCl · 2nH3O · 4nH2O (I) (HIA = isonicotinic acid) is prepared through the hydrothermal reactions and structurally characterized by X-ray diffraction technique (CIF file CCDC no. 1831958). This compound is characterized by a 2D organic-inorganic hybrid layer structure. Solid-state photoluminescence measurement reveals that it exhibits a photoluminescence emission in the blue region. These photoluminescence emissions correspond to the characteristic emission 3H4–3PJ transitions (J = 2, 1, and 0, respectively) of Pr3+ ions. Solid-state UV−Vis diffuse reflectance spectrum discovers that the existence of a wide optical band gap of 3.39 eV.
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