新型含三氟甲基八羟基喹啉锌配合物的合成及紫外、荧光性质研究 |
Synthesis and Photophysics of Novel Zn Metal Complex Based on 2-Substituted-8-hydroxyquinoline with Trifluoromethylbenzene Group |
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摘要: 设计合成了含三氟甲基8-羟基喹啉衍生物配体(E)-2-[2-(2-三氟甲基苯基)乙烯基]-8-羟基喹啉(4)及其相应的锌配合物5,产物经1H NMR,IR,MS和元素分析进行了结构表征。利用X射线单晶衍射仪测定了配体L(4)的单晶结构,发现其具有独特的螺旋形结构。通过核磁滴定以及紫外和荧光滴定模拟了配体L(4)在溶液中与金属锌的配位过程,荧光光谱显示在甲醇溶液中配体的λmax=474 nm(蓝色),配合物的λmax=601 nm(橙黄色)。同时测定了配体和配合物的固体荧光寿命,两者的荧光寿命分别为15.6 ms和18.1 ms。 |
关键词: 8-羟基喹啉 三氟甲基 锌配合物 荧光光谱 荧光寿命 |
基金项目: 国家自然科学基金(Nos.21172047, 21001030, 51273048)资助项目。 |
Abstract: A novel 8-hydroxyquinoline derivative ligand containing trifluoromethylbenzene Group: (E)-2-[2-(2-trifluromethylphenyl)vinyl]-8-hydroxyquinoline(4) and its zinc complex(5) have been synthesized and identified by 1H NMR, FFIR, MS techniques and elemental analyses. The crystal structure of ligand 4 was determined by X-ray single crystal diffraction, and its network structure is special spiral. The aggregation behavior of Zn(AcO)2·2H2O and the ligand 4 in solvents was investigated by UV-Vis, fluorescence spectrum and 1H NMR spectra titration. Fluorescence emission results showed that the λmax of ligand 4 and complex 5 were 474 nm and 601 nm, respectively. The fluorescence lifetime of ligand 4 and complex 5 were investigated in the solid state, their values are 15.6 ms and 18.1 ms, respectively. CCDC: 910120. |
Keywords: 8-hydroxyquinoline trifluoromethylbenzene zinc complex fluorescence fluorescence lifetime |
投稿时间:2012-11-20 修订日期:2013-04-12 |
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聂晓李,霍延平,陆天华,胡升,易国斌,袁国赞.新型含三氟甲基八羟基喹啉锌配合物的合成及紫外、荧光性质研究[J].无机化学学报,2013,29(9):1805-1812. |
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