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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis, Structures, Luminescence, and Magnetic Properties of Two Three-dimensional Lanthanide Organic Frameworks Comprising Pyrazine-2,3-dicarboxylic Acid
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Synthesis, Structures, Luminescence, and Magnetic Properties of Two Three-dimensional Lanthanide Organic Frameworks Comprising Pyrazine-2,3-dicarboxylic Acid

机译：含吡嗪-2,3-二羧酸的两种三维镧系有机骨架的合成，结构，发光和磁性

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摘要

Two three-dimensional (3D) lanthanide coordination polymers (CPs) of the general formula [Ln_2(PDOA)_3(H_2O)]_n·2nH_2O [Ln = Gd (1), Tb (2)] were synthesized by solvothermal reactions of the corresponding rare-earth chloride and pyrazine-2,3-dicarboxylic acid (H_2PDOA). The CPs were structurally characterized by singlecrystal X-ray diffraction, IR spectroscopy, thermogravimetry, and elemental analysis. CPs 1 and 2 are isostructural and crystallize in the monoclinic space group P2_1/c. The frameworks are constructed from dinuclearlanthanidebuildingblocksinwhichthePDOA2–ionsadoptthree coordination modes, μ_3-kO;kO;kN,O, μ_4-kN,O;kO;kO;kO,O, and μ_5-kN,O;kO;kO;kO,O;kO, respectively. The Tb~(3+) polymer of 2 exhibits characteristic photoluminescence in the visible region. The magnetic properties of CP 1 were investigated by measuring the magnetic susceptibilities in the temperature range 1.8–300 K.
机译：通式[Ln_2（PDOA）_3（H_2O）] _ n·2nH_2O [Ln = Gd（1），Tb（2）]的两个三维（3D）镧系配位聚合物（CPs）通过相应的氯化稀土和吡嗪-2,3-二羧酸（H_2PDOA）。通过单晶X射线衍射，红外光谱，热重分析和元素分析对CP进行结构表征。 CP 1和2是同构的，并且在单斜空间群P2_1 / c中结晶。框架是由双核镧系元素构建的，其中PDOA2-离子采用三种配位模式：μ_3-kO; kO; kN，O，μ_4-kN，O; kO; kO; kO，O和μ_5-kN，O; kO; kO; kO，O;分别为2的Tb〜（3+）聚合物在可见光区具有特征性的光致发光。通过测量1.8-300 K温度范围内的磁化率来研究CP 1的磁性能。

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