Matching Helical and Supramolecular Chirality in a Perylene Diimide Dimer: Impact on (Chir)Optical Properties

Kotecha, Mya, Hartmann, Denis, Krimovs, Artemijs, Errida, Oussama, Gianga, Tiberiu-M, Orton, Georgia R. F., Siligardi, Giuliano, Pal, Robert, Bressan, Giovanni ORCID: https://orcid.org/0000-0001-7801-8495 and Barendt, Timothy A. (2026) Matching Helical and Supramolecular Chirality in a Perylene Diimide Dimer: Impact on (Chir)Optical Properties. Journal of the American Chemical Society, 148 (36). pp. 38964-38975. ISSN 0002-7863

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Abstract

Understanding the interplay between different forms of chirality in organic materials is critical for tuning and optimizing their (chir)optical properties. There is a growing interest in chiral chromophores such as bay-substituted perylene diimides (PDIs) due to their intrinsic helicity (M/P) which, at a higher level of organization, can also generate supramolecular chirality (Ms/Ps). The relationship between helical and supramolecular chirality governs interchromophore coupling, rotatory strengths, and subsequently circular dichroism (CD) and circularly polarized luminescence (CPL) spectra. Herein, we report the first PDI dimers that match helical and supramolecular chirality, e.g., PP–Ps. In agreement with theory, this chiral synergy contributes to enhanced CD and broadband CPL with high CPL brightness, properties of significant value for optical filtering in next-generation chiral sensors and displays.

Item Type:	Article
Additional Information:	Deposition Numbers 2558750−2558754 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge via the joint Cambridge Crystallographic Data Centre (CCDC) and Fachinformationszentrum Karlsruhe Access Structures service.
Uncontrolled Keywords:	das in place,deposition numbers 2558750−2558754 contain the supplementary crystallographic data for this paper. these data can be obtained free of charge via the joint cambridge crystallographic data centre (ccdc) and fachinformationszentrum karlsruhe access structures service.,2026 ,/dt/atira/pure/keyword/DAStatement/das_in_place
Faculty \ School:	Faculty of Science > School of Chemistry, Pharmacy and Pharmacology
Depositing User:	LivePure Connector
Date Deposited:	29 Oct 2026 14:11
Last Modified:	30 Oct 2026 00:08
URI:	https://ueaeprints.uea.ac.uk/id/eprint/104913
DOI:	10.1021/jacs.6c11478

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