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以1,2,4,5-苯四甲酸或1,2,3,4-丁烷四羧酸为配体的金属有机框架的合成、表征及性质 被引量:2

Syntheses, Characterization and Properties of Metal-Organic Frameworks based on 1,2,4,5-Benzene Tetracarboxylic Acid or 1,2,4,5-Butane Tetracarboxylic Acid
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摘要 以1,2,4,5-苯四甲酸(H_4BETA)与1,2,3,4-丁烷四羧酸(H_4BTCA)为有机配体,采用溶剂热法,成功合成了3个金属有机框架(Metal-Organic Frameworks,MOFs):{[Co_5(BETA)_2(OH)_2(H_2O)_2]·10H_2O}_n(1)、{[Zn_5(BETA)_2(OH)_2(H_2O)_2]·10H_2O}_n(2)和{[Mn_2(BTCA)(H_2O)_3]·H_2O}_n(3),并利用X射线单晶衍射、红外光谱(IR)、荧光光谱(PL)和热重分析(TG/DTG)等测试手段对其进行了表征。单晶结构研究表明3个MOFs均属于单斜晶系,P21/n空间群;框架1和2都是由1,2,4,5-苯四甲酸与五核的金属簇连接形成三维框架结构,沿a轴方向具有一维孔道结构,孔径大小为0.990 nm×1.307 nm;框架3是由1,2,3,4-丁烷四羧酸与Mn^(2+)连接形成4,8-c网络的三维框架结构。 Three Metal-Organic Frameworks(MOFs) materials, namely, {[Co5(BETA)2(OH)2(H2O)2]·10H2O}n(1), {[Zn5(BETA)2(OH)2(H2O)2]·10H2O}n(2) and {[Mn2(BTCA)(H2O)3]·H2O}n(3),(H4BETA=1,2,4,5-benzene tetracarboxylic acid;H4BTCA =1,2,4,5-butane tetracarboxylic acid), have been solvothermally synthesized, and characterized by X-ray single crystal diffraction, IR spectrum, PL spectrum, and TG/DTG analyses. The results show that the three MOFs belong to monoclinic system, space group P21/n. Five-nuclear metal clusters in compound 1 and 2 are linked by BETA4-ligand to form 3D framework structure, and produce 1D channel with the pore size of 0.990 nm ×1.307 nm along the a axis. The framework of compound 3 is consisted of Mn2+ ions with BTCA4-ligands forming 4,8-c network.CCDC:1409602,3; 1409603,2; 1409601,3.
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2016年第1期9-17,共9页 Chinese Journal of Inorganic Chemistry
基金 国家自然科学基金(No.21266006) 广西自然科学基金(No.2012GXNSFAA053034)资助项目
关键词 金属有机框架 羧酸配体 合成 性质 MOFs carboxylate ligand synthesis property
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