新型寡聚噻吩的设计、合成及其光物理和电化学性质  

Design and Synthesis of Novel Oligothiophenes and Their Photophysical and Electrochemical Properties

作　　者：徐同乐 曹皓 商务云 段泰男 XU Tong-le;CAO Hao;SHANG Wu-yun;DUAN Tai-nan(Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;University of Chinese Academy of Sciences, Beijing 100049, China;School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China)

机构地区：[1]中国科学院重庆绿色智能技术研究院有机半导体中心,重庆400714 [2]中国科学院大学,北京100049 [3]西南大学化学化工学院,重庆400715

出　　处：《合成化学》2020年第8期666-671,共6页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(Y72Z250Q10)。

摘　　要：以3,4-二溴噻吩为底物,经6步反应合成了以烷基噻吩为共轭骨架,二氰基罗丹明为封端基团的两种新型寡聚噻吩(DC5T和DC7T),其结构和性能经1H NMR,13C NMR,UV-Vis,MS和CV表征。结果表明:DC5T和DC7T均在400~750 nm有较强吸收,吸收边界分别位于732 nm和740 nm。此外,两种新型寡聚噻吩均具有较深的最高占据分子轨道(HOMO)能级。Two new oligothiophenes named DC5T and DC7T with alkylthiophene as conjugated skeleton and dicyanodamine as terminating group were synthesized through a six-step reaction from 3,4-dibromothiophene.The structures and properties were characterized by 1H NMR,13C NMR,UV-Vis,MS and CV.The results showed that DC5T and DC7T exhibited wide range absorption from 400 nm to 750 nm with absorption edges at 732 nm and 740 nm.In addition,both of them possessed relatively deep enery levels of the highest occupied molecular orbital(HOMO)and the lowest unoccupied molecular orbital(LUMO).

关 键 词：噻吩 共轭骨架 电化学 罗丹明 合成 性能 分子轨道 

分 类 号：O611.2[理学—无机化学]