Syntheses,structures,and properties of three coordination polymers based on 5⁃ethylpyridine⁃2,3⁃dicarboxylic acid and N⁃containing ligands  

基于5⁃乙基吡啶⁃2,3⁃二羧酸和含N配体的三种配合物的合成、结构与性质

作　　者：TANG Long BIAN Yaxin CHEN Luyuan HOU Xiangyang WANG Xiao WANG Jijiang 唐龙;边雅欣;陈鲁园;侯向阳;王潇;王记江(延安大学化学与化学工程学院,延安大学新能源与新功能材料重点实验室,陕西化学反应工程重点实验室,延安716000;陕西精艺化工有限公司,榆林719300)

机构地区：[1]Yan′an University Key Laboratory of New Energy&New Functional Materials,Department of Chemistry and Chemical Engineering,Shaanxi Key Laboratory of Chemical Reaction Engineering,Yan′an University,Yan′an,Shaanxi 716000,China [2]Shaanxi Jingyi Chemical Co.,Ltd.,Yulin,Shaanxi 719300,China

出　　处：《无机化学学报》2024年第10期1975-1985,共11页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21763028,22169022);陕西省榆林市科技计划项目(No.CXY⁃2021⁃125)资助。

摘　　要：Three coordination polymers[Mn(epda)(2,2'⁃bipy)(H_(2)O)](1),[Mn(epda)(phen)](2),and[Co_(2)(epda)2(bpe)2(H_(2)O)_(4)]·5H_(2)O(3)(H2epda=5⁃ethyl⁃pyridine⁃2,3⁃dicarboxylic acid,2,2'⁃bipy=2,2'⁃bipyridine,phen=phenanthroline,bpe=1,2⁃bis(4⁃pyridyl)ethylene)were synthesized by solvothermal reactions and characterized by single⁃crystal X⁃ray diffraction,thermogravimetric analyses,IR spectroscopy and elemental analysis.1 displays a 1D chain struc⁃ture,and these chains are joined by O-H…O hydrogen bonding andπ⁃πstacking interactions to generate a 2D layer structure.2 displays a 2D layer structure,and adjacent layers are generated 3D architecture throughπ⁃πstacking interactions.3 displays a 1D chain structure,and adjacent chains are generated double layer structure through O-H…O hydrogen bonding.The fluorescent properties of 1 and 3 indicate that they can potentially be used as a luminescent sensor.1 was highly selective and sensitive towards o⁃nitrophenol through different detection mechanisms,however,3 was highly selective and sensitive towards 2,4,6⁃trinitrophenol.In addition,the magnetic behavior of 2 has also been investigated.CCDC:2172533,1,2355773,2,2355774,3.通过水热法合成了3种配位聚合物[Mn(epda)(2,2'⁃bipy)(H_(2)O)](1)、[Mn(epda)(phen)](2)、[Co_(2)(epda)2(bpe)2(H_(2)O)_(4)]·5H_(2)O(3)(H2epda=5⁃乙基吡啶⁃2,3⁃二羧酸,2,2'⁃bipy=2,2'⁃联吡啶,phen=菲咯啉,bpe=1,2⁃双(4⁃吡啶)乙烯),并用单晶X射线衍射、热重分析、红外光谱和元素分析等手段对其进行了表征。单晶结构分析表明:1是一个1D链状结构,这些链进一步通过O-H…O氢键和π⁃π相互作用形成一个2D结构。2是2D层结构,通过π⁃π相互作用形成一个3D结构。3是一个1D链状结构,这些链进一步通过O-H…O氢键形成一个2D结构配合物。配合物1和3的荧光特性表明它们有望用作发光传感器。1通过不同的检测机制对邻硝基苯酚具有高度的选择性和敏感性,而3对2,4,6⁃三硝基苯酚具有高度的选择性和敏感性。此外,还研究了2的磁性行为。

关 键 词：coordination polymers 5⁃ethyl⁃pyridine⁃2 3⁃dicarboxylate ligand crystal structures fluorescent properties magnetic behavior 

分 类 号：O614.711[理学—无机化学] O614.812[理学—化学]