文献类型：期刊文献

英文题名：π-Extended C2-Symmetric Double NBN-Heterohelicenes with Exceptional Luminescent Properties

作者：Sun Z.[1];Yi C.[2];Liang Q.[3];Bingi C.[1];Zhu W.[2];Qiang P.[1];Wu D.[1];Zhang F.[1]

机构：[1]School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China;[2]School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China;[3]Department of Physics, Shaoxing University, Shaoxing, 312000, China

年份：2020

卷号：22

期号：1

起止页码：209

外文期刊名：Organic Letters

收录：Scopus(收录号：2-s2.0-85077191478)

基金：We thank National Natural Science Foundation of China (Nos. 21574080, 21774072, and 21720102002). This work was also financially supported by the Shanghai Committee of Science and Technology for financial support within Project No. 16JC1400703 and the Open Project Program of the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (No. 2019-01, Jilin University). We acknowledge the Instrumental Analysis Center of SJTU for the NMR, single crystal, and HRMS measurements.

语种：英文

外文摘要：Two novel B,N-embedded double heterohelicenes, Ph-NBNDH and Naph-NBNDH, with intensively twisted quasi-C2 symmetrical structures are synthesized for the first time via a highly regioselective intramolecular Scholl reaction. The π-extended skeletons render them with exceptional physical properties, such as the highest fluorescence quantum yields up to 0.83 among multiple helicenes. Moreover, the isolated (M,M)- and (P,P)-enantiomers of Naph-NBNDH deliver intense circularly polarized luminescence. As the emitting layer, Ph-NBNDH exhibits strong electroluminescence at high working voltage. ? 2019 American Chemical Society.