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设计合成了含噻吩基的新型配体(E)-2-[2-(3-噻吩基)乙烯基]-8-羟基喹啉(4)及相应的锌配合物5,产物结构经核磁共振、红外光谱和元素分析进行表征.利用X射线单晶衍射仪测定了中间体(E)-2-[2-(3-噻吩基)乙烯基]-8-乙酰氧基喹啉(3)和配体4的单晶结构,结果表明中间体3晶体分子间并无明显的氢键作用,分子间呈交错堆叠;配体4分子之间由硫氢氧键弱作用相互排列形成网状结构.通过核磁滴定及紫外和荧光滴定模拟了配体4在溶液中与金属锌的配位过程.固体荧光寿命研究结果表明,配合物5的荧光寿命为18.8 ms.通过电致发光器件研究发现,配合物5作为发光层具有良好的电致发光性能,同时具有较好的电子传输能力.
The new ligand (E) -2- [2- (3-thienyl) vinyl] -8-hydroxyquinoline (4) and the corresponding zinc complex 5 were designed and synthesized. The structure of the product was confirmed by nuclear magnetic resonance , IR and elemental analyzes. Determination of the intermediate (E) X-ray diffractometer using 2- [2- (3-thienyl) ethenyl] -8-acetoxy-quinoline (3) and Ligand 4 single crystal structure, the results show that there is no significant hydrogen bond between the crystal molecules of intermediate 3 intermolecular staggered stacking; Ligand 4 molecules by weak interaction between the formation of a network of hydrogen sulfide structure. The coordination process of ligand 4 with zinc metal in solution was simulated by NMR and UV and fluorescence titration.The results of solid-state fluorescence lifetime showed that the fluorescence lifetime of complex 5 was 18.8 ms.According to the study of electroluminescent device, 5 as a light-emitting layer has good electroluminescent properties, while having good electron transport capacity.