一种管状钴配合物的结构、电化学及荧光性质  

Structure,electrochemical and fluorescent properties of a tubular cobalt complex

作　　者：穆娅君 王冰倩 高越[1] 唐爽[1] 刘国成[1] 李晓慧 MU Yajun;WANG Bingqian;GAO Yue;TANG Shuang;LIU Guocheng;LI Xiaohui(College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013

出　　处：《辽宁科技大学学报》2023年第4期273-278,共6页Journal of University of Science and Technology Liaoning

基　　金：国家自然科学基金资助项目(22201021);国家级大学生创新创业训练计划(202210167015);辽宁省科技厅项目(2021-MS-312);辽宁省教育厅项目(LJ2020008)。

摘　　要：以N,N’-双(吡啶-3-基甲基)-4-(4-羧基苄基)氧基苯二甲酰胺(L)为中性构筑单元,以间苯二甲酸(1,4-H_(2)pht)为阴离子配位单元,以Co^(2+)为阳离子节点,采用环境友好的水热合成法得到一种一维金属-有机配位聚合物[Co(L)(pht)](1),并利用元素分析、红外光谱、粉末X射线衍射等表征手段对其进行测试。单晶结构分析表明,两个L配体利用吡啶N原子与Co^(2+)配位形成四元双金属-有机环(Co-L)_(2)。pht^(2-)阴离子利用处于对称位置的两个羧基以单齿配位模式连接Co^(2+)形成pht与Co^(2+)交替拓展的一维金属-有机链(Co-pht)_(n)。金属-有机链(Co-pht)_(n)和金属-有机环(Co-L)_(2)在Co^(2+)的共同连接下形成一维管状配位聚合物。该配合物表现出较好的相纯度、稳定的电化学行为以及4-硝基苯酚的荧光传感性质,有望成为一种新型光电功能材料。Using N,N'-bis(pyridine-3-ylmethyl)-4-(4-carboxybenzyl)oxybenzarbonamide(L)as neutral building unit,m-phthalic acid(1,4-H_2pht)as anionic coordination units and Co~(2+)as cationic nodes,a one-dimensional metal-organic coordination polymer[Co(L)(pht)](1)has been obtained by an environmentally friendly hydrothermal synthesis.[Co(L)(pht)](1)was characterized by elemental analysis,infrared spectroscopy and powder X-ray diffraction.Single crystal structure analysis shows that two L ligands form a quaternary bimetal-organic ring(Co-L)_(2using) the coordination of pyridine N atoms with Co~(2+).The pht anions use two carboxyl groups in symmetrical position to connect Co~(2+)in a single-dentate coordination mode to form a one-dimensional metal-organic chain(Co-pht)_(nwith) alternating expansion of pht and Co~(2+).Metal-organic chain(Co-pht)_(nand) metal-organic ring(Co-L)_(2build) a one-dimensional tubular coordination polymer under the joint of Co~(2+).The complex shows good phase purity,stable electrochemical behavior and fluorescent sensing property toward nitrophenol,and is expected to be a new type of optical and electrical functional material.

关 键 词：钴 醚桥二甲酰胺 间苯二甲酸 配合物 

分 类 号：O614[理学—无机化学]