Synthesis and Optical and Electrochemical Properties of Trifluoromethylated Pyrazolic 3,4-b Quinoline Derivatives (CF3-PQs)

摘要：

A class of Pyrazolic 3, 4-b quinoline derivatives containing CF3 group (CF3-PQs) are synthesized from the reaction of 5-chloro-l-phenyl-3-trifluoromethyl-Lh-pyrazolo-4-formalde hyde with aryl amines in good yields, their photophysical and electrochemical properties are examined. Those compounds show strong photoluminescence, and the maximum emission peaks are located in a region from 450 to 495 nm in solution. Moreover, the quantum yields of CF3-PQs are much higher than those of non-fluorinated CH3-PQs, suggesting that introducing a CF3 group to the backbone of PQs can greatly increase the optical properties. Electrochemically, CF3-PQs illustrate good redox properties. To investigate the potential application of the CF3-PQs derivatives, an OLED device based on 6-fluoro-l-phenyl-3-(trifluoromethyl)-Lh-pyrazolo 3,4-b quinoline has been fabricated, and it shows blue emitting with a chromaticity coordinate of (x= 0.172, y=0.115) and the maximum efficiency of 0.38 cd /A .

关键词： Trifluoromethylated Pyrazolic 3, 4-b Quinoline Blue Luminescence

作者: Jing Wang Wen Wan Haizhen Jiang Jian Hao Yuansong Jiang Shizheng Zhu

作者单位: School of Materials Society and Engineering , Shanghai University, Shanghai 200444, China Department of Chemistry, Shanghai University, Shanghai, 200444, China School of Materials Society and Engineering , Shanghai University, Shanghai 200444, China Department Department of Chemistry, Zhejiang University, Hangzhou, 310058, China Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy

会议类型: 国际会议

会议名称: China Display/Asia Display 2011(2011年中国显示/亚洲显示会议)

会议地点: 江苏昆山

会议语种:英文

页码: 520-523

在线出版日期: 2011-11-07（万方平台首次上网日期，不代表论文的发表时间）