Double [8]Helicene Featuring a Dibenzo[<i>g</i>,<i>p</i>]chrysene Core: Synthesis and Chiroptical Response
Double [8]helicene <b>1</b>, featuring a dibenzo[<i>g</i>,<i>p</i>]chrysene core, was synthesized via the Scholl reaction, and its structure was unambiguously confirmed by single-crystal X-ray diffraction analysis of its dicationic salt [<b>1</b>-Cl]<sup>2+</sup>·(SbCl<sub>6</sub><sup>-</sup>)<sub>2</sub>. The compound exhibits red fluorescence with an emission maximum at 618 nm (λ<sub>em</sub>) and a quantum yield of 16.2%, highlighting its potential in optoelectronic applications. Furthermore, circular dichroism (CD) and circularly polarized luminescence (CPL) measurements reveal notable chiroptical activity, with absorption and emission dissymmetry factors of |<i>g</i><sub>abs</sub>| = 5.11 × 10<sup>-3</sup> and |<i>g</i><sub>lum</sub>| = 7.1 × 10<sup>-4</sup>, respectively.
Authors
- Han‐Yuan Gong (ORCID: https://orcid.org/0000-0003-4168-7657)
- Ziming Cheng (ORCID: https://orcid.org/0000-0002-3009-4541)
- Baixue Liu
- Xiaohuan Huang (ORCID: https://orcid.org/0000-0001-7205-2801)
- Xu‐Lang Chen
- Si-Qian Yu
- Zhaoliang Zheng (ORCID: https://orcid.org/0000-0001-6741-6148)
- Chuanyu Zhao (ORCID: https://orcid.org/0000-0002-9875-0250)
- Jiaqi Liang (ORCID: https://orcid.org/0000-0002-3796-9785)
- Chunyang Zheng (ORCID: https://orcid.org/0000-0003-4850-3320)
Institutions
- Beijing Normal University (CN)
- CAS Key Laboratory of Urban Pollutant Conversion (CN)
- Hubei Normal University (CN)
Publication Details
- Journal
- Organic Letters
- Published
- 2025-05-02
- DOI
- https://doi.org/10.1021/acs.orglett.5c01261
- Citations
- 4
- Primary Topic
- Synthesis and Properties of Aromatic Compounds
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- National Natural Science Foundation of China