Synthesis, Structure and Luminescent Property of an Europium(Ⅲ) Coordination Polymer

作     者：叶燕珠 林深 吴新建 

作者机构：Department of Science Research and TrainingFujian Institute of Education College of Chemistry and Chemical EngineeringFujian Normal University 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2014年第33卷第11期

页      面：1649-1654页

核心收录：

学科分类：07[理学] 070305[理学-高分子化学与物理] 0703[理学-化学] 

基　　金：financially supported by Foundation of Fujian Educational Committee(JA14348) the National Natural Science Foundation of China(No.21171037) 

主　　题：coordination polymer,lanthanide,luminescent property 

摘      要：A novel europium（Ⅲ） coordination polymer, [Eu3（pydc）3（SO4）（H2O）5（ox）0.5]·3H2O（1, H2ox = oxalic acid, H2 pydc = pyridine-2,6-dicarboxylic acid）, has been synthesized hydrothermally from the self-assembly of lanthanide ions（Eu3＋） with the flexible oxalic acid and the rigid pyridine-2,6-dicarboxylic acid ligands, respectively. It crystallizes in the triclinic system, space group P1 with a = 11.225（4）, b = 12.390（5）, c = 13.752（5）A, α = 89.228（7）, β = 71.142（6）, γ = 75.552（6）°, Dc = 2.317 g/cm^3, μ = 5.480 mm^-1, F（000） = 1150, Z = 2, the final R = 0.0351 and w R = 0.0949 for 8782 observed reflections with I 〉 2σ（I）. Structural analysis reveals that complex 1 exhibits a three-dimensional metal-organic framework via π-π stacking interactions. In addition, complex 1 displays a red fluorescence emission in the solid state at room temperature, which corresponds to the 5D0 → 7F2 transition of Eu3＋ ions.