A Double Helicene with Quadruple Indole-Fused Skeleton and Double NBN-Type Cove-Edged Structure  

作　　者：Lingjuan Chen Jiaqi Dong Dehui Tan Jianfeng Wu Deng-Tao Yang 

机构地区：[1]Xi'an Key Laboratory of Hybrid Luminescent Materials and Photonic Device,School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi'an,Shaanxi 710072,China [2]Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education,Jianghan University,Wuhan Hubei 430056,China

出　　处：《Chinese Journal of Chemistry》2024年第23期3069-3074,共6页中国化学(英文版)

基　　金：the National Natural Science Foundation of China(22001211);the Key Research and Development Program of Shaanxi Province(2023YBGY-454);Shaanxi Fundamental Science Research Project for Chemistry&Biology(Grant No.22JHQ015)for financial support;This project is also supported by the Opening Project of Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education,Jianghan University(No.JDGD-202208);the Fundamental Research Funds for the Central Universities.

摘　　要：Construction of helicenes by inducing heteroatoms has regarded as an effective strategy to enhance the chiroptical properties.We report a facile synthesis of a multiple helicene based on four indoles with two electron-rich NBN-coved edges.The structure of the NBN-coved multiple helicene was confirmed by single-crystal X-ray diffraction analysis,revealing a twisted double[5]helicene motif with a saddle-shaped skeleton.This NBN-coved helicene showed strong green fluorescence with good photoluminescence quantum yield.Both theoretical calculations and experimental investigation have been exploited to probe the impact of electron-rich NBN units on aromaticity and photophysical properties of the helicene.

关 键 词：NBN Double helicene Cove-edged Indole-fused π-conjugated 

分 类 号：O62[理学—有机化学]