Zhang Wen, Wang Jinyi, Zhang Xinyu, Yuan Bing, Fang Pengwei, Yin Nan, Du Pingwu
Key Laboratory of Precision and Intelligent Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026, P.R. China.
Angew Chem Int Ed Engl. 2025 Jul 28;64(31):e202508017. doi: 10.1002/anie.202508017. Epub 2025 May 22.
The strategic implementation of aryl-functionalization in every phenyl group in organic architectures presents a transformative approach to constructing novel molecular nanocarbon materials. In this present work, we demonstrate the first synthesis of a uniform and chiral half-aryl substituted cycloparaphenylene (CPP), [6]CPP-12BuPh. Single-crystal X-ray diffraction analysis unambiguously confirms its hoop-shaped structure and the existence of planar chirality arising from stereochemically distinct substituent orientations. The resolved pS and pR enantiomers display mirror-imaged circular dichroism (CD) signals and a high luminescence dissymmetry factor (|g| = 2.6 × 10⁻). Photophysical characterization reveals the emergence of aggregation-induced emission (AIE) behavior, with pure [6]CPP-12BuPh powder sample exhibiting intense orange fluorescence.
在有机结构的每个苯基中进行芳基官能化的战略实施，为构建新型分子纳米碳材料提供了一种变革性方法。在本工作中，我们首次合成了一种均匀且手性的半芳基取代环对苯撑（CPP），即[6]CPP-12BuPh。单晶X射线衍射分析明确证实了其环状结构以及由于立体化学上不同的取代基取向而产生的平面手性的存在。拆分得到的pS和pR对映体显示出镜像圆二色性（CD）信号和高发光不对称因子（|g| = 2.6×10⁻）。光物理表征揭示了聚集诱导发光（AIE）行为的出现，纯[6]CPP-12BuPh粉末样品表现出强烈的橙色荧光。
