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Synthesis,Structure, and Photoluminescence Properties of an Organically‐Templated Uranyl Selenite
Authors:Dong‐Sheng Liu  Han‐Mao Kuang  Wen‐Tong Chen  Qiu‐Yan Luo  Yan Sui
Institution:Institute of Applied Chemistry, School of Chemistry & Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China
Abstract:The organically‐templated uranyl selenite, (H2en)(UO2)(SeO3)(HSeO3)](NO3) · 0.5H2O ( 1 ) (en = 1,2‐ethylenediamine) was synthesized and characterized by elemental analyses, IR spectroscopy, TG, and single‐crystal X‐ray diffraction. Compound 1 crystallizes in the orthorhombic system, space group Pbca, with a = 13.170(3) Å, b = 11.055(2) Å, c = 18.009(4) Å, V = 2621.8(9) Å3, M = 1316.19, Z = 4, Dcal = 3.334 g · cm–3, μ(Mo‐Kα) = 17.998 mm–1, GOF = 1.059, R1 = 0.0263, wR2 = 0.0532 I>2σ(I)]. The X‐ray diffraction analysis reveals that compound 1 has a three‐dimensional (3D) supramolecular structure. It contains negatively charged UO2(HSeO3)(SeO3)] inorganic anion layers and is balanced by H2en]2+ cations and NO3 anions located in the interlayers. Furthermore, the photoluminescence properties of 1 were investigated.
Keywords:Uranyl selenite  Uranium  Selenium  X‐ray diffraction  Photoluminescence properties
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