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Issue 37, 2018
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Circular dichroism and circularly polarised luminescence of bipyrenyl oligopeptides, with piperidines added in the peptide chains

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Abstract

Upon combining chiral peptides (the most basic chiral source) with pyrene moieties, we found that chiral oligopeptides bearing two-pendant pyrenyl units exhibited circularly polarised luminescence (CPL) originating from intramolecular excimers at 450–490 nm in various solvents, and the sign of their CPL signals depended on the type of solvent employed. The CPL and circular dichroism signs and intensities could be tuned by the introduction of a piperidine unit into the chiral peptide chain; thus, the obtained structure could be considered a practical Lock ON–OFF system for oligopeptide luminophores.

Graphical abstract: Circular dichroism and circularly polarised luminescence of bipyrenyl oligopeptides, with piperidines added in the peptide chains

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Publication details

The article was received on 02 Aug 2018, accepted on 15 Aug 2018 and first published on 17 Aug 2018


Article type: Paper
DOI: 10.1039/C8OB01869C
Citation: Org. Biomol. Chem., 2018,16, 8273-8279

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    Circular dichroism and circularly polarised luminescence of bipyrenyl oligopeptides, with piperidines added in the peptide chains

    Y. Mimura, S. Kitamura, M. Shizuma, M. Kitamatsu and Y. Imai, Org. Biomol. Chem., 2018, 16, 8273
    DOI: 10.1039/C8OB01869C

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