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

发布时间：2018-03-25 14:19

本文选题：金属有机框架　切入点：羧酸配体　出处：《无机化学学报》2016年01期

【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。
[Abstract]:Using H4BETAA and H4BTCA as organic ligands, three organoorganic frameworks Metal-Organic frameworks have been successfully synthesized by solvothermal method: [[Co_5(BETA)_2(OH)_2(H_2O)_2] 10H_2O} n1H1, {[[Zn_5(BETA)_2(OH)_2(H_2O)_2] 10H_2O} nnt2) and {[Mn_2(BTCA)(H_2O)_3] H2O} NNX, and [[Mn_2(BTCA)(H_2O)_3] H _ 2O} n ~ (2)), using X-ray single crystal diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD), X-ray diffraction (XRD) and X-ray diffraction (XRD). The IR spectra, fluorescence spectra and thermogravimetric analysis (TG / DTG) were used to characterize them. The results of single crystal structure analysis showed that the three MOFs belong to the monoclinic system P21 / n space group. Both frames 1 and 2 are connected with pentagonal metal clusters to form a three-dimensional frame structure with a one-dimensional pore structure along the a-axis. The pore size is 0.990 nm 脳 1.307 nm, and frame 3 is a three dimensional frame structure which is formed by the connection of 1 / 2 ~ 2 ~ 3 ~ 3 ~ (-) -butane tetracarboxylic acid and Mn~(2) to form a 4N ~ (8-c) network.
【作者单位】：广西电磁化学功能物质重点实验室;桂林理工大学化学与生物工程学院;
【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
【分类号】：O641.4

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