文献类型：期刊文献

英文题名：N-Bordered Rylene Arches via Programmable Curved π-Extension

作者：Chen, Kai[1,2];Li, Zuoyu[1];Chan, Jiangtao[1];Jin, Xuan[3];Wang, Ming-Wei[1];Wen, Xu[1];Liu, Zixin[1];Liu, Guogang[3];Jiang, Wei[2];Wang, Zhaohui[1]

机构：[1]Tsinghua Univ, Dept Chem, Beijing, Peoples R China;[2]Univ Chinese Acad Sci, Sch Chem Sci, Beijing, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai, Peoples R China

年份：2026

卷号：17

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;Scopus(收录号：2-s2.0-105046558658);WOS:【SCI-EXPANDED(收录号:WOS:001841606600007)】；

基金：This work was financially supported by the National Natural Science Foundation of China (No. 22350005 and 22235005).

语种：英文

摘要：Curved molecular carbons have attracted considerable interest owing to their distinctive properties relative to planar analogues and their structural relevance to diverse nonplanar carbon allotropes. Aromatic ribbons with continuously and directionally curved pi-surfaces, predicted as key building blocks for circular carbon architectures, remain challenging synthetic targets, with only a few examples reported to date. Herein, we report the synthesis and properties of arch-shaped nitrogen-bordered nanoribbons featuring rylene backbones fused with five-membered rings at the armchair edges, achieved through a programmable curved pi-extension strategy. X-ray crystallography reveals well-defined arched topologies and continuously curved pi-surfaces, while variable-temperature proton nuclear magnetic resonance experiments and theoretical calculations demonstrate high arch-to-arch inversion barriers. The resulting quaterrylene arch exhibits an enhanced fluorescence quantum yield in solution and forms host-guest complexes with fullerene C60 in both solution and the solid state. This work provides a foundation for the synthesis of long-sought-after carbon nanobelts.