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2-乙烯基氟代苯-8-羟基喹啉锌配合物的合成及光学性能研究
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作者单位
霍延平,戴立立,黄宝华,张焜,方岩雄 广东工业大学轻工化工学院 
基金项目:国家自然科学基金资助项目(20802010,21172047);广东省自然科学基金(07300884)
中文摘要:设计合成了2种新型的含不同氟原子数的8-羟基喹啉衍生物配体:(E)-2-[2-(2-氟代苯基)乙烯基]-8-羟基喹啉(4a)和(E)-2-[2-(五氟苯基)乙烯基]-8-羟基喹啉(4b)及其相应的锌配合物5a和5b,利用1H NMR、IR、MS、元素分析确认了产物结构。通过紫外滴定模拟了金属锌与配体4a和4b的配位过程,测定了其在二甲基甲酰胺(DMF)溶液中的荧光性质。荧光光谱显示:配体4a和4b在DMF溶液中的λmax分别为505 nm(蓝绿色)和517 nm(绿色),配合物5a和5b的λmax分别为559 nm(青绿色)和599 nm(黄色),配位后体系共轭程度增大,荧光光谱发生明显的红移。而且随着取代氟原子的增加,配体和配合物的荧光光谱也发生明显的红移。荧光光谱显示氟原子取代数量的改变可以调控8-羟基喹啉锌配合物的发光性质。
中文关键词:8-羟基喹啉  氟代苯  锌配合物  荧光
 
Synthesis of Novel Zn Metal Complexes Based on 2-Substituted-8-hydroxyquinoline with Fluorine Groups and Their Optical Properties
Abstract:Two new 8-hydroxyquinoline derivatives:(E)-2-[2-(2-fluorophenyl)ethenyl]-8-hydroxyquinoline(4a),(E)-2-[2-(pentafluorophenyl)ethenyl]-8-hydroxyquinoline(4b)and their corresponding zinc complexes(5a,5b)were designed,synthesized and identified by 1H NMR,IR,MS spectra and elemental analyses.The aggregation behaviors of Zn(AcO)2 and the ligands:4a,4b in solution were investigated by UV-Vis spectra.The luminescence properties of the complexes:5a,5b were investigated by fluorescence spectra in DMF solution at room temperature.The results showed that the λmax of 4a and 4b were 505 nm(blue and green)and 517 nm(green),and the λmax of 5a and 5b were 559 nm(dark green)and 599 nm(yellow).The λmax of the complexes:5a and 5b exhibited a red shift compared to that of the corresponding ligands:4a and 4b,which can be attributed to the increasing conjugated degree of the complexes,and the λmax of ligands and complexes exhibited evident red shift in the presence of increasing numbers of fluorine.The comparative study of the luminescent properties of 5a and 5b showed that the emission λmax can be tuned by introducing different fluorine numbers.
Key Words:8-hydroxyquinoline  fluorobenzene  zinc complexes  fluorescence
引用本文:霍延平,戴立立,黄宝华,张焜,方岩雄.2-乙烯基氟代苯-8-羟基喹啉锌配合物的合成及光学性能研究[J].分析测试学报,2012,31(2):133-137.
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