两个基于π-共轭二羧酸构筑的配位聚合物的晶体结构、磁性及光催化性能
Crystal Structures, Magnetic Property, and Photocatalytic Activity of Two Coordination Polymers Based on π-Conjugated Benzenedicarboxylic Acid
作者单位E-mail
翟丽军 太原工业学院化学与化工系, 太原 030008 jinzhongzhailijun@163.com 
牛宇岚 太原工业学院化学与化工系, 太原 030008  
郝小艳 太原工业学院化学与化工系, 太原 030008  
陈立杰 太原工业学院化学与化工系, 太原 030008  
李国放 太原工业学院化学与化工系, 太原 030008  
范黎明 中北大学理学院, 太原 030051 limingfan@nuc.edu.cn 
摘要: 在水热条件下,利用具有π共轭体系的二羧酸H2L与金属盐进行配位反应得到2个新颖的配位聚合物:{[Mn2(L)2(H2O)5]·2H2O}n1)和[Cd(L)(H2O)2]n2),并通过元素分析、红外光谱、粉末X射线衍射分析、单晶X射线衍射等对其结构进行了表征。结构分析表明,配合物1是具有一维{Mn3(COO)2}链的二维层状结构,而配合物2中镉离子与L2-配体中的羧基氧螯合配位,最终得到一维链状结构。配合物12都通过结构单元之间的氢键作用,最终形成三维超分子结构。此外,还研究了配合物1的磁性和配合物2的光催化活性。
关键词: 配位聚合物  晶体结构  磁性  光催化
基金项目: 国家自然科学基金(No.21676258)资助项目。
Abstract: Two coordination polymers, namely {[Mn2(L)2(H2O)5]·2H2O}n (1) and[Cd(L)(H2O)2]n (2), have been assembled from the π-conjugated ligand of 3,3'-(1,3,6,8-tetraoxobenzol[lmn] [3,8]-phenanthroline-2,7(1H,3H,6H,8H)diyl)-di-benzoic acid) (H2L) under hydrothermal condition. Their structures have been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses (EA), IR spectra, powder X-ray diffraction (PXRD), and thermogravimetric (TG) analyses. Structural analysis reveals that complex 1 is a 2D sheet with 1D { Mn3(COO)2} chain, which was further expanded to a 3D supramolecular structure through hydrogen bonds. While complex 2 is a 1D polymeric chain, which can be packed into a 3D supramolecular through hydrogen bonding interactions. Besides, the variable-temperature susceptibility of 1 as well as the photocatalytic activity of 2 have been investigated.
Keywords: coordination polymers  crystal structure  magentic property  photocatalytic activity
投稿时间:2018-07-07 修订日期:2018-08-13
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翟丽军,牛宇岚,郝小艳,陈立杰,李国放,范黎明.两个基于π-共轭二羧酸构筑的配位聚合物的晶体结构、磁性及光催化性能[J].无机化学学报,2018,34(10):1936-1942.
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