基于轴手性配体的两个镧系金属配合物的合成、表征及其荧光性质
Syntheses, Characterization and Fluorescence Properties Analysis of Two Lanthanide Coordination Polymers Based on Axial Chirality Ligand 2, 2'-Dinitro-4, 4'-biphenyldicarboxylic Acid
作者单位E-mail
吉沁 江苏科技大学环境与化学工程学院, 镇江 212003  
陈立庄 江苏科技大学环境与化学工程学院, 镇江 212003 clz1977@sina.com 
摘要: 通过水热法,合成了2个基于轴手性配体2,2'-dinitro-4,4'-biphenyldicarboxylic acid(H2nbpdc)的配位聚合物[La(nbpdc)(phen)(FA)]n1),[Eu(nbpdc)(phen)(FA)]n2)(phen=菲咯啉,FA=甲酸根),并且对2个化合物进行了红外、单晶X射线衍射、热重、荧光、CD谱及介电性质的研究。晶体结构测试表明,2个化合物结晶在正交晶系P212121手性空间群,且具有相同的三维拓扑结构。荧光性质测定表明化合物12分别在606和615.5 nm处有强的发射光谱。与此同时,固体CD谱测试进一步证实2个化合物具有手性。
关键词: 配位聚合物  水热反应  荧光  手性
基金项目: 国家自然科学基金(No.21671084)、江苏省自然科学基金(No.BK20131244)、江苏省“六大人才高峰”项目(No.2014-XCL-008)、江苏省青蓝工程项目、江苏省高校研究生实践创新计划项目(No.KYLX16-0508)和江苏教育厅基金(No.16KJB430011)资助。
Abstract: Two lanthanide coordination polymers, La(nbpdc)(phen)(FA) (1), Eu(nbpdc)(phen)(FA) (2) (FA=formic acid ion)based on bridging ligand 2,2'-dinitro-4,4'-biphenyldicarboxylic acid (H2nbpdc) and 1,10-Phenanthroline monohydrate (phen), have been synthesized by the hydrothermal method and characterized by IR, single-crystal X-ray structure analysis, thermogravimetric analysis, luminescent properties, circular dichroism (CD) analysis and dielectric properties. Complexes 1 and 2 exhibited a rare three-interlude 3D structure with the same topology structure of (44·62). In addition, the two complexes exhibit fluorescent emissions in the solid state at room temperature. Fluorescent analysis of complexes 1 and 2 showed an intense emission band at 606 nm (λex=495 nm) and 615.5 nm (λex=395.5 nm), respectively. Moreover, the circular dichroism analysis of complexes 1 and 2 was measured with chirality.
Keywords: coordination polymer  hydrothermal condition  fluorescence  chirality
投稿时间:2016-11-14 修订日期:2017-03-09
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吉沁,陈立庄.基于轴手性配体的两个镧系金属配合物的合成、表征及其荧光性质[J].无机化学学报,2017,33(5):874-880.
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