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（英文）

Crystal Structures, Magnetic Property, and Photocatalytic Activity of Two Coordination Polymers Based on π-Conjugated Benzenedicarboxylic Acid

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:{[Mn_2(L)_2(H_2O)_5]·2H_2O}n(1)和[Cd(L)(H_2O)_2]n(2),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1和2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。

Two coordination polymers,namely{[Mn2(L)2(H2O)5]·2H2O}n(1)and[Cd(L)(H2O)2]n(2),have been assembled from theπ-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.CCDC:1848147,1;1848148,2.