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Exploring the System Lanthanide/Succinate in the Formation of Porous Metal-Organic Frameworks: Experimental and Theoretical Study

机译:探索多孔金属-有机骨架形成过程中的镧系元素/琥珀酸体系:实验和理论研究

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摘要

Exploring the Ln/succinate system and the template effect in hydrothermal synthesis made it possible to obtain [La-2(Succ)(3)(H2O)(3)].2H(2)O and [Ln(2)(Succ)(3)(H2O)(2)] where Ln = La, Pr, Nd, Sm, Eu, Gd, and Tb. The first case is a 2D network with a sql plane net topology. The 3D supramolecular network is formed by strong hydrogen bonds, which give rise to a pcu network. In the second case, a family of 3D compounds with a bnn topology could be synthesized. Both compounds can be obtained in the presence of 5-sulfosalicylate (5-SSA(3)) as a template agent, and the presence of toluene in the reaction enables formation only of [Ln(2)(Succ)(3)(H2O)(2)] compounds. This paper addresses a systematic synthetic and theoretical study of the formation equilibrium of the molecules reported. The influence of the template agent on the formation of porous MOFs and the luminescent behavior are addressed.
机译:探索Ln /琥珀酸酯系统及其在水热合成中的模板作用使得有可能获得[La-2(Succ)(3)(H2O)(3)]。2H(2)O和[Ln(2)(Succ) (3)(H 2 O)(2)],其中Ln = La,Pr,Nd,Sm,Eu,Gd和Tb。第一种情况是具有sql平面网络拓扑的2D网络。 3D超分子网络由强大的氢键形成,形成了pcu网络。在第二种情况下,可以合成具有bnn拓扑的3D化合物家族。两种化合物都可以在5-磺基水杨酸酯(5-SSA(3))作为模板剂的情况下获得,反应中甲苯的存在仅能形成[Ln(2)(Succ)(3)(H2O) )(2)]化合物。本文针对所报道分子的形成平衡进行系统的合成和理论研究。解决了模板剂对多孔MOF的形成和发光行为的影响。

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