一个二重互穿的镉配合物:合成、结构和双功能荧光传感性质 |
A 2-Fold Interpenetrated Cd(Ⅱ) Complex: Synthesis, Structure and Bifunctional Fluorescent Sensing Property |
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摘要: 通过水热合成的方法,制备了一个新型的镉配合物{[Cd(BDC)(L)]·1.5H2O}n(1)(L=N,N'-双(3-吡啶)-5-羟基苯-1,3-二甲酰胺、H2BDC=对苯二甲酸),并且通过单晶X射线衍射对配合物进行了结构的表征。分析结果表明,配合物1属于单斜晶系:C2/c,a=2.171 45(8),b=1.605 34(6),c=1.678 04(6)nm,Z=8,V=5.116 8(3)nm3,Dc=1.656 g·cm-3,F(000)=2 568,μ=0.914 mm-1,R=0.026 5,wR=0.067 6。结构分析表明每个Cd(Ⅱ)与2个配体上的吡啶N原子以及来自2个不同BDC上的4个氧原子形成六配位模式。BDC阴离子与Cd(Ⅱ)交替连接成(Cd-BDC)n链,该链通过成对的L拓展成具有平行互穿模式的二维63网络。研究了配合物1的相纯度、热稳定性、固态荧光性质以及对Fe3+和二氯甲烷的传感行为。 |
关键词: 镉(Ⅱ)配合物 水热合成 晶体结构 荧光传感 |
基金项目: 国家自然科学基金(No.21401010,21501013)资助项目。 |
Abstract: A new Cd(Ⅱ) coordination polymer {[Cd(BDC)(L)]·1.5H2O}n (1)[L=N,N'-bis (4-pyridin-3-yl)-5-hydroxyi-sophthalamide, H2BDC=1,4-benzenedicarboxylic acid) has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction analysis. Complex 1 crystalizes in monoclinic, space group C2/c:a=2.171 45(8), b=1.605 34(6), c=1.678 04(6) nm, Z=8, V=5.116 8(3>) nm3, Dc=1.65 6 g·cm-3, F(000)=2 568, μ=0.914 mm-1, the final R=0.026 5 and wR=0.067 6. The crystal structure analysis indicates that the Cd(Ⅱ) cation is six-coordinated by two pyridyl N atoms from two L ligands, four O atoms from two BDC anions. The BDC anions connects adjacent Cd(Ⅱ) ions to form 1D chain, which is linked by pairs of L to generate two-dimensional 63 connected layer with a 2-fold parallel-interpenetrated structure. The phase purity, thermal stability, fluorescent property of 1 and fluorescence sensing properties of 1 for Fe3+ and dichloromethane have been studied investigated. |
Keywords: cadmium (Ⅱ) complex hydrothermal synthesis crystal structure fluorescence sensing |
投稿时间:2018-06-07 修订日期:2018-09-26 |
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刘国成,于蕙瑄,高越,唐爽,冯聪.一个二重互穿的镉配合物:合成、结构和双功能荧光传感性质[J].无机化学学报,2018,34(12):2238-2244. |
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