Zhang Xinyu, Liu Huiqing, Zhuang Guilin, Yang Shangfeng, Du Pingwu
Hefei National Research Center for Physical Sciences at the Microscale, Anhui Laboratory of Advanced Photon Science and Technology, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026, China.
College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang Province, 310032, China.
Nat Commun. 2022 Jun 21;13(1):3543. doi: 10.1038/s41467-022-31281-9.
In the literature, organic materials with both aggregation-induced emission (AIE) and aggregation-caused quenching (ACQ) effects that can emit with multiple bands both in the solution and aggregated state are rarely reported. Herein we report a novel chiral dual-emissive bismacrocycle with tunable aggregation-induced emission colors. A facile four-step synthesis strategy is developed to construct this rigid bismacrocycle, (1,4)[8]cycloparaphenylenophane (SCPP[8]), which possesses a 1,2,4,5-tetraphenylbenzene core locked by two intersecting polyphenylene-based macrocycles. The luminescent behavior of SCPP[8] shows the unique characteristics of both ACQ effect and AIE effect, inducing remarkable redshift emission with near white-light emission. SCPP[8] is configurationally stable and possesses a novel shape-persistent bismacrocycle scaffold with a high strain energy. In addition, SCPP[8] displays enhanced circularly polarized luminescence properties due to AIE effect.
在文献中，很少报道既具有聚集诱导发光（AIE）又具有聚集导致猝灭（ACQ）效应、且在溶液态和聚集态均能多波段发光的有机材料。在此，我们报道了一种具有可调聚集诱导发光颜色的新型手性双发射双大环化合物。我们开发了一种简便的四步合成策略来构建这种刚性双大环化合物，即（1,4）[8]环对亚苯基环番（SCPP[8]），它具有一个由两个相交的基于聚亚苯基的大环锁定的1,2,4,5-四苯基苯核心。SCPP[8]的发光行为表现出ACQ效应和AIE效应的独特特性，诱导出显著的红移发射并接近白光发射。SCPP[8]构型稳定，拥有一种具有高应变能的新型形状持久双大环骨架。此外，由于AIE效应，SCPP[8]表现出增强的圆偏振发光性质。
