有机化学 ›› 2026, Vol. 46 ›› Issue (2): 539-544.DOI: 10.6023/cjoc202507016 上一篇    下一篇

研究论文

多取代芘基碳纳米环的合成、表征和电荷传输性质

李科, 方鹏炜, 张新宇, 韦康, 袁冰, 杜平武*()   

  1. 中国科学技术大学材料科学与工程系 精准智能化学全国重点实验室 合肥 230026
  • 收稿日期:2025-07-13 修回日期:2025-10-05 发布日期:2025-10-29
  • 通讯作者: 杜平武
  • 基金资助:
    国家自然科学基金(22225108); 国家自然科学基金(223B2120)

A Multi-Substituted Pyrenyl Carbon Nanohoop: Synthesis, Photophysical and Charge Transport Properties

Ke Li, Pengwei Fang, Xinyu Zhang, Kang Wei, Bing Yuan, Pingwu Du*()   

  1. Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026
  • Received:2025-07-13 Revised:2025-10-05 Published:2025-10-29
  • Contact: Pingwu Du
  • Supported by:
    National Natural Science Foundation of China(22225108); National Natural Science Foundation of China(223B2120)

碳纳米环的纵向π延伸是“自下而上”构建碳纳米管最有效的策略之一. 报道了基于环对苯撑(CPPs)连接8个芘功能化单元而精确合成的多取代碳纳米环([12]CPP-8PBPy). 这种结构特定的碳纳米环不仅可以作为扶手椅型碳纳米管的分子片段, 而且实现了增强的纵向π延伸. 合成的碳纳米环分子结构经高分辨率质谱和核磁共振谱所证实, 其光物理性质通过紫外/可见吸收光谱和光致发光光谱进行研究. 同时进一步探索了该碳纳米环分子在电子传输器件中的潜在应用.

关键词: 芘衍生物, π延伸, 共轭大环, 电荷传输

The longitudinal π-extension of carbon nanohoops is one of the most effective bottom-up synthetic strategies toward carbon nanotubes (CNTs). Herein, the precise synthesis of a multi-substituted carbon nanohoop ([12]CPP-8PBPy) based on cycloparaphenylenes (CPPs) grafted with eight pyrene-functionalized units was reported. This structurally well-defined nanohoop not only acts as a segment of armchair-type CNTs but also achieves enhanced longitudinal π-extension. The structure of [12]CPP-8PBPy was confirmed by high-resolution mass spectrometry (HRMS) and nuclear magnetic resonance (NMR). The photophysical properties were studied by UV/Vis and photoluminescence spectroscopy. The potential applications of [12]CPP-8PBPy in electron-transport devices were further investigated.

Key words: pyrene derivatives, π-extension, conjugated macrocycle, charge transport