以三(4-咪唑基苯基)胺为配体的镉配合物的合成、晶体结构和荧光性质
Syntheses, Crystal Structures and Photoluminescent Properties of Two Cadmium(II) Coordination Polymers Constructed from Tris(4-imidazolylphenyl)amine
作者单位E-mail
李健 南京晓庄学院环境科学学院, 新型功能材料南京市重点实验室, 南京 211171  
喻敏 南京晓庄学院环境科学学院, 新型功能材料南京市重点实验室, 南京 211171  
刘光祥 南京晓庄学院环境科学学院, 新型功能材料南京市重点实验室, 南京 211171 njuliugx@126.com 
摘要: 以三(4-咪唑基苯基)胺(TIPA)和碘化镉为原料,分别与环已二酸(H2CDC)和5-甲基间苯二甲酸(H2MPDA)在水热条件下反应,得到2个结构不同的配位聚合物[CdI(TIPA)(CDC)0.5]n1)和{[Cd(TIPA)(MPDA)]·H2O}n2)。对它们进行了元素分析、红外光谱分析,并利用X射线衍射测定了它们的单晶结构。单晶结构分析显示,配合物1拥有二维两重贯穿的(3,4)-连接的(4.52)(4.53.72)拓扑结构,层与层之间通过弱相互作用连接成三维超分子结构;而配合物2具有二维(3,5)-连接的(42.67.8)(42.6)拓扑的层状结构,层与层之间通过互锁方式连接成三维金属有机骨架。结果说明了有机羧酸在配合物组装过程中起着非常重要的作用。此外,在室温下对2个配合物进行了荧光性质分析。
关键词: 镉配合物  三咪唑配体  芳香羧酸配体  晶体结构  荧光性质
基金项目: 国家自然科学基金(No.21671107)资助项目。
Abstract: Two cadmium(Ⅱ) coordination polymers,[CdI(TIPA)(CDC)0.5]n (1) and {[Cd(TIPA)(MPDA)]·H2O}n (2), (TIPA=tris(4-imidazolylphenyl)amine, H2CDC=1,4-cyclohexanedicarboxylic acid, H2MPDA=5-methylisophthalic acid), have been synthesized and characterized by IR spectroscopy, elemental analyses and single-crystal X-ray diffraction. Structural analyses reveal that complex 1 features a rare 2D→2D polyrotaxane network with (3,4)-connected (4.52)(4.53.72) topology, which is further interlinked into a higher-dimensional supramolecular framework by intermolecular weak interactions, whereas complex 2 has a two-dimensional (3,5)-connected novel network with (42.67.8)(42.6) topology and shows a 2D→3D parallel-parallel polycatenation framework. The results show that the carboxylates exert obvious influence on the resulting architectures. Meanwhile, the solid-state photoluminescence of two complexes at room temperature was also investigated.
Keywords: cadmium coordination polymer  tris (imidazole) ligands  polycarboxylate  crystal structure  photoluminescence
投稿时间:2017-10-03 修订日期:2017-11-27
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李健,喻敏,刘光祥.以三(4-咪唑基苯基)胺为配体的镉配合物的合成、晶体结构和荧光性质[J].无机化学学报,2018,34(3):605-613.
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