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. 2018 Mar 28;140(12):4222-4226.
doi: 10.1021/jacs.8b01447. Epub 2018 Mar 19.

Synthesis and Characterization of Hexapole [7]Helicene, A Circularly Twisted Chiral Nanographene

Yanpeng Zhu  1 , Zeming Xia  1 , Zeying Cai  2 , Ziyong Yuan  1 , Nianqiang Jiang  1 , Tao Li  1 , Yonggen Wang  1 , Xiaoyu Guo  1 , Zhihao Li  1 , Shuang Ma  1 , Dingyong Zhong  2 , Yang Li  3 , Jiaobing Wang  1
Affiliations

Synthesis and Characterization of Hexapole [7]Helicene, A Circularly Twisted Chiral Nanographene

Yanpeng Zhu et al. J Am Chem Soc. .

Abstract

We report the synthesis and characterization of two hexapole [7]helicenes (H7Hs). Single crystal X-ray diffraction unambiguously confirms the molecular structure. H7H absorbs light, with distinct Cotton effect, from ultraviolet to the near-infrared (λmax = 618 nm). Cyclic voltammetry reveals nine reversible redox states, consecutively from -2 to +6. These chiroptical and electronic properties of H7H are inaccessible from helicene's small homologues.

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