由芳香羧酸和含氮配体构筑的两个金属锌配合物的合成、晶体结构和荧光性质
Syntheses,Structures and Photoluminescence Properties of Two Zn(Ⅱ) Complexes Constructed from Mixed Carboxylate and N-Donor Ligands
作者单位E-mail
肖伯安 郑州幼儿师范高等专科学校, 郑州 450099  
陈水生 阜阳师范学院化学与材料工程学院, 阜阳 236041 chenss@fync.edu.cn 
摘要: 以1-(4-咪唑基)-4-(四氮唑)苯(HL)与对苯二甲酸(H2pbda)或间苯二甲酸(H2mbda)作为混合配体,与硫酸锌进行水热合成反应,构筑了2个新的金属配位配合物[Zn2(L)2(pbda)]n1)和[Zn2(L)2(mbda)]n2),并进行了元素分析、红外、热重、X射线粉末衍射及单晶衍射等表征。晶体结构分析表明:配合物1结构中,去质子化的L-与锌离子结合成[Zn2(L)2]2+的二维结构,相邻的二维层由pbda2-配体连接成二重贯穿层柱状的具有dmc拓扑的三维结构,拓扑符号为(4·82)(4·85);配合物2是由2个羧酸基团与锌离子形成的双核[Zn2(COO)2]为基本单元连结而成的单一6连结具有(412·63)-pcu拓扑的三维结构。同时,对配合物12在室温下的固体荧光性质进行了研究。
关键词: 配位聚合物  合成  结构  荧光性质
基金项目: 国家自然科学基金(No.21171040)资助项目。
Abstract: Two Zn(Ⅱ) coordination polymers[Zn2(L)2(pbda)]n (1) and [Zn2(L)2(mbda)]n (2) were synthesized by reactions of ZnSO4·7H2O with rigid ligand 1-(1H-imidazol-4-yl)-4-(4H-tetrazol-5-yl) benzene (HL) and different carboxylic acids of 1,4-benzenedicarboxylic acid (H2pbda) or 1,3-benzenedicarboxylic acid (H2mbda).The complexes have characterized by single-crystal X-ray diffraction,elemental analysis,IR spectroscopy,photolu-minescence spectrum,TG and PXRD.Polymer 1 possesses[Zn2(L)2]2+ sheets pillared by the pbda2- ligand to form a 2-fold interpenetrating three-dimensional (3D) dmc net with point Schläfli symbol of (4·82)(4·85),while 2 exhibits a uninodal 6-connected 3D architecture with (412·63)-pcu topology based on the binuclear Zn(Ⅱ) secondary building units (SBUs).Solid state luminescent properties of 1 and 2 have been investigated.
Keywords: coordination polymer  synthesis  structure  photoluminescence property
投稿时间:2016-09-05 修订日期:2016-11-06
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