π-Aggregation-free, fused perylene pentamers: synthesis, narrowband far-red to near-infrared emission, and chiroptical properties.

Qifeng Zhou, Lin-Tao Bao, Rui Liu, Zhitao Sun, Zhuolin Ye, Liuying Jiao, Wei Fan, Ya Zou, Hai-Bo Yang, Jishan Wu

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Article in Chemical science, 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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10 authors.

Qifeng ZhouDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Lin-Tao BaoShanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China hbyang@chem.ecnu.edu.cn.

Rui LiuDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Zhitao SunDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Zhuolin YeDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Liuying JiaoDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Wei FanDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Ya ZouDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.

Hai-Bo YangShanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China hbyang@chem.ecnu.edu.cn.ORCID https://orcid.org/0000-0003-4926-1618

Jishan WuDepartment of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore zouya@nus.edu.sg chmwuj@nus.edu.sg.ORCID https://orcid.org/0000-0002-8231-0437

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chiral nanographenes have emerged as promising materials for chiral optoelectronics owing to their intrinsic chiroptical properties. However, their development remains constrained by synthetic challenges, strong π-aggregation, and low fluorescence quantum yields, while emission extending to the near-infrared (NIR) region is still rare. Here, we present a molecular design strategy that combines structural multiplicity with π-extension in a butterfly-shaped fused perylene pentamer scaffold to achieve active circularly polarized luminescence (CPL) emitters. By tuning the Scholl reaction conditions, we selectively obtained either racemic 1a (1a-

Identifiers

PMID42111245

DOI10.1039/d6sc00676k

PMCPMC13154877

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