Highly Emissive Double π-Helical Molecular Carbons via Nitrogen Integration.

Xiaonan Li, Zixin Liu, Xu Wen, Jingcheng Jiang, Shuhai Qiu, Yafei Wang, Junzhi Liu, Wei Jiang, Zhaohui Wang

Abstract read

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Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Xiaonan LiKey Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, P.R. China.

Zixin LiuKey Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, P.R. China.

Xu WenKey Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, P.R. China.

Jingcheng JiangSchool of Materials Science & Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University, Changzhou, P.R. China.

Shuhai QiuDepartment of Chemistry, The University of Hong Kong, Hong Kong, P.R. China.

Yafei WangSchool of Materials Science & Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University, Changzhou, P.R. China.ORCID https://orcid.org/0000-0001-6984-6918

Junzhi LiuDepartment of Chemistry, The University of Hong Kong, Hong Kong, P.R. China.ORCID https://orcid.org/0000-0001-7146-0942

Wei JiangSchool of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, P.R. China.ORCID https://orcid.org/0000-0002-0153-7796

Zhaohui WangKey Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, P.R. China.

Funding

Fundamental Research Funds for the Central Universities E5EQ0301X2National Natural Science Foundation of China 22235005National Natural Science Foundation of China 22275112National Natural Science Foundation of China 22350005National Natural Science Foundation of China 22461160284

6 · The paper itself

Abstract

Improving the emission efficiency of chiral π-systems is of significance for their practical applications in materials science. Herein, we report a family of highly emissive double π-helical molecular carbons featuring a cyclooctatetraphenylene (COTt) or cyclooctahexaphenylene (COTh) core. In contrast to previously reported non-emissive tetrabenzo-COTt derivatives, the introduction of nitrogen via diarylamine/carbazole fusion leads to fluorescence quantum yields as high as 98%. The high configurational stability of these double π-helices enabled successful chiral resolution of their enantiomers using high-performance liquid chromatography. Notably, structural evolution from the COTt to the COTh core results in an approximately three-fold increase in the luminescence dissymmetry factor (g

Indexed as

chiroptical propertycircularly polarized luminescencecyclooctatetraeneD2 symmetrymolecular carbon

Identifiers

PMID42333877

DOI10.1002/anie.6341370

PMCPMC13502587

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