Synthesis and Characterization of 9,9-diethyl-1-phenyl-1,9-dihydrofluoreno[2,3-d]imidazole-ended Fluorophores  

作　　者：LI Saijun WANG Tianqi TAN Qitao LIN Haixia CUI Yongmei 

机构地区：[1]College of Science,Shanghai University,Shanghai 200444,China [2]School of Medicine,Shanghai University,Shanghai 200444,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第6期1484-1488,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Natural Science Foundation of Shanghai City(No.19ZR1419700)。

摘　　要：A series ofπ-conjugated compounds ending with 9,9-diethyl-1-phenyl-1,9-dihydrofluoreno[2,3-d]imidazole were conveniently synthesized by condensation of the key intermediate9,9-diethyl-N^(2)-phenyl-9H-fluorene-2,3-diamine with the corresponding symmetric aryl phthalaldehydes under very mild conditions.The structures of these compounds were confirmed by^(1)H NMR,^(13)C NMR,and HRMS.Their UV-Vis spectroscopy data,fluorescent spectroscopy data,and further details of the electronic properties from cyclic voltammetry measurements and theoretical calculations were studied.Most compounds possess good fluorescence-emitting ability with quantum yield of fluorescence values in the region of 0.36-0.92 and display emission within 449-513 nm depending on the molecular nature.

关 键 词：FLUORENE IMIDAZOLE synthesis UV absorption fluorescence 

分 类 号：TQ422[化学工程]