双金属节点型镉配合物的制备及荧光传感性质  

Synthesis and fluorescent sensing property of a Cd(Ⅱ) complex based on bimetallic node

作　　者：钟宝琦 穆娅君 孙继宇 高越[1] 刘国成[1,2] ZHONG Baoqi;MU Yajun;SUN Jiyu;GAO Yue;LIU Guocheng(College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China;School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013 [2]北京理工大学化学与化工学院,北京100081

出　　处：《辽宁科技大学学报》2021年第6期419-423,463,共6页Journal of University of Science and Technology Liaoning

基　　金：国家级大学生创新创业训练计划(202110167027);辽宁省科技厅项目(2021-MS-312);辽宁省教育厅项目(LJ2020008);国家自然科学基金(21401010)。

摘　　要：利用5-羟基间苯二甲酸(5-H2hmpa)、N,N'-双(3-亚甲基吡啶)-1,4-苯二甲酰胺(L)和Cd2+,通过水热合成法得到一个基于双金属节点的金属-有机配合物网络[Cd(L)0.5(5-hmpa)(H2O)](1)。通过元素分析、红外光谱和单晶X-射线衍射技术确定该配合物的结构。结果表明,Cd(Ⅱ)通过一对羧基连接成双金属结构单元,相邻的双金属结构单元通过成对的5-hmpa阴离子拓展成一维金属-有机链,金属-有机链通过L配体连接成4-连接二维网络。该配合物材料展现出蓝色荧光性质,并对重金属离子Cr2O72-和农药2,6-二氯-4-硝基苯胺具有良好的荧光传感性能。By using hydrothermal method,a new bimetallic-node-based metal-organic complex[Cd(L)0.5(5-hmpa)(H2O)](1)was synthesized from 5-hydroxy-m-phthalic acid(5-H2hmpa),N,N'-bis(3-methylene pyri-dine)-1,4-benzodiacamide(L),and Cd^(2+).The structure of the complex was characterized by elemental analy-sis,infrared spectrum,and single crystal X-ray diffraction.The results show that two Cd^(2+)ions are connected by a pair of carboxylic groups to form a bimetallic unit.The units are linked by paired 5-hmpa anions to gener-ate one dimensional metal-organic chain.The chain is bridged by L to form a two dimensional 4-connected net-work.The complex shows blue fluorescence property and good fluorescence sensing performance for heavy metal ion Cr_(2)O_(7)^(2-)and pesticide 2,6-dichloro-4-nitroaniline.

关 键 词：镉 苯二甲酰胺 配合物 晶体结构 荧光传感 

分 类 号：O614[理学—无机化学]