基于3,3′,5,5′-四咪唑基联苯配体的Zn(Ⅱ)金属有机骨架及其吸附性能  

Synthesis and adsorption properties of Znmetal⁃organic framework based on 3,3′,5,5′⁃tetraimidazolyl biphenyl ligands

作　　者：司友琳 孙树全 杨俊松 别子俊 陈艳 罗莉[2] SI Youlin;SUN Shuquan;YANG Junsong;BIE Zijun;CHEN Yan;LUO Li(Public Basic Institute,Bengbu Medical University,Bengbu,Anhui 233030,China;School of Chemistry and Bioengineering,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China)

机构地区：[1]蚌埠医科大学公共基础学院,蚌埠233030 [2]苏州科技大学化学与生命科技学院,苏州215009

出　　处：《无机化学学报》2024年第9期1755-1762,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21804003,21603005);蚌埠医科大学自然科学重点项目(No.2021byzd013)资助。

摘　　要：选用刚性3,3′,5,5′-四咪唑基联苯(L)作为主配体,分别辅以4,4′-联苯二羧酸(4,4′-H_(2)BPDC)和4,4′-氧二苯甲酸(H_(2)OBA)为第二配体,在水热条件下,成功制备了2种基于Zn的金属有机骨架,即[Zn_(2)(L)(BPDC)_(2)]·H_(2)O(1)和[Zn_(2)(L)(OBA)_(2)]·6H_(2)O(2)。单晶X射线衍射表征结构显示:1和2均为(4,4)-连接的二节点的双重贯穿的新型3D孔道结构,其中2具有一定的孔隙率。活化的2(2′)的吸附性质表明其对H_(2)O和EtOH具有选择性吸附。Solvothermal reactions of a tetradentate imidazole-containing ligand,3,3′,5,5′-tetraimidazolyl biphenyl(L),combined with Znsalt in the presence of varied auxiliary dicarboxylic acids yield two new metal-organic frameworks(MOFs)with(4,4)topologies,namely[Zn_(2)(L)(BPDC)_(2)]·H_(2)O(1)and[Zn_(2)(L)(OBA)_(2)]·6H_(2)O(2),where H_(2)BPDC=4,4′-biphenyldicarboxylic acid,H_(2)OBA=4,4′-oxydibenzoic acid.Single crystal X-ray diffraction analysis has shown that complex 1 consists of 1D chains interconnected by Zn—N bonds,forming a layer structure,which can be further linked by BPDC2-ligands,resulting in the formation of a 3D framework,while complex 2 consists of 2D layers with different 46-membered macrocycles,which are further connected by carboxylates to bring about 3D frameworks.Furthermore,activated complex 2(2′)possesses remarkable selective adsorption characteristics for H_(2)O and EtOH.The photoluminescence properties of these MOFs were also thoroughly examined.CCDC:1839915,1;1839916.2.

关 键 词：3 3′ 5 5′-四咪唑基联苯 金属有机骨架 混合配体策略 共轭体系 吸附性能 

分 类 号：O614.241[理学—无机化学]