Highly emissive phenylene-expanded [5]radialene
2020
Yu, Jie | Tang, Chunlin | Gu, Xinggui | Zheng, Xiaoyan | Yu, Zhen-Qiang | He, Zikai | Li, Xin-Gui | Tang, Ben Zhong
A pentagonal macrocycle (MC5-PER) with radialene topology was facilely synthesized through a selective one-pot Suzuki–Miyaura cross-coupling reaction. The resulting product is endowed with a pentagonal architecture as revealed by its single crystal structure, which affords the smallest ring strain and the best conjugation. As tetraphenylethene subunits are embedded, MC5-PER is highly emissive in the solid state due to the aggregation-induced emission effect. Because of the flexible structure and preferable fibre-like self-assembly, the aggregate of MC5-PER displays interesting polymorphism-dependent emission and acts as a sensitive fluorescence sensor for explosives detection.
显示更多 [+] 显示较少 [-]