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Aggregation-amplified circularly polarized luminescence from axial chiral boron difluoride complexes

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摘要 The development of small organic molecules with intense and switchable circularly polarized luminescence(CPL) is currently attracting great interest due to their promising applications in chiroptical devices and sensors. In this paper, CPL-active BF2-bridged azaanthracene dimers(BA1 and BA2) were facilely synthesized by incorporating boron difluoride unit to the binaphthalene. BA1 and BA2 show moderate CPL in diluted solutions, however, BA2 exhibited aggregation-amplified red CPL with large dissymmetry factor up to 1.6×10^-2. Moreover, acid-/base-triggered CPL switch off/on were also realized via disaggregation/aggregation of BA2 in tetrahydrofuran(THF)/water binary solvents.
出处 《中国科学:化学英文版》 SCIE EI CAS CSCD 2019年第3期355-362,共8页 SCIENCE CHINA Chemistry
基金 the National Natural Science Foundation of China (21501085) Key University Science Research Project of Jiangsu Province (17KJA150004) We are grateful to the High Performance Computing Center of Nanjing Tech University supporting the computational resources.
作者简介 Corresponding authors:Xiaoqing Wang ,email: iamxqwang@njtech.edu.cn;Corresponding authors:Zhipeng Liu,iamzpliu@njtech.edu.cn.
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