Seeing Is Believing:A Wavy N-Heteroarene with 20 Six-Membered Rings Linearly Annulated in a Row

作     者：Zhongbo Zhang Zilong Wang Naoki Aratani Xiaozhang Zhu Qichun Zhang 

作者机构：School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798 Division of Materials ScienceNara Institute of Science and TechnologyIkomaNara 630-0192 Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190 Department of Materials Science and EngineeringCenter of Super-Diamond and Advanced Films(COSDAF)City University of Hong KongHong Kong SAR 999077 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2022年第4卷第11期

页      面：3491-3496页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：The work at NAIST was supported by Grant-in-Aid for Scientific Research No.JP20H02711(NA) 

主　　题：N-heteroarenes single-crystal structure linear annulation optical properties 

摘      要：Structurally well-defined arenes with higher numbers of linearly-fused six-member rings(n≥10)are important and highly desirable not only because of their experimental challenges but also due to their fundamental interests and the curiosity of their structure-property *** this research,we successfully synthesized a novel large N-heteroarene(N20)with 20 linearly-fused six-membered rings,which is the longest N-heteroarene(4.7 nm)confirmed by single-crystal X-ray diffraction(SCXRD)analysis so *** as-prepared arene displays a wave-like framework rather than a rigid ***,N20 shows high molar absorptivity of 364,000 M^(−1) cm^(−1) with its fluorescence extended to the near-infrared region.