文献类型：期刊文献

英文题名：pi-Extended C-2-Symmetric Double NBN-Heterohelicenes with Exceptional Luminescent Properties

作者：Sun, Zuobang[1];Yi, Chen[2];Liang, Qifeng[3];Bingi, Chiranjeevi[1];Zhu, Wenqing[2];Qiang, Peirong[1];Wu, Dongqing[1];Zhang, Fan[1]

机构：[1]Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;[2]Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China;[3]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2020

卷号：22

期号：1

起止页码：209

外文期刊名：ORGANIC LETTERS

收录：SCI-EXPANDED(收录号：WOS:000506088700043)、、WOS

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-C-2 symmetrical structures are synthesized for the first time via a highly regioselective intramolecular Scholl reaction. The pi-extended skeletons render them with exceptional physical properties, such as the highest fluo- rescence 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.