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Issue 39, 2017
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Stimuli-responsive circularly polarized luminescence from an achiral perylenyl dyad

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Abstract

Stimuli-responsive circularly polarized luminescence (CPL) was successfully achieved through fine-tuning the conformation of a perylenyl dyad by using external stimuli. Monomer CPL was clearly detected from an inherent achiral monochromophore system in a simple perylene–carbazole dyad, and concentration-dependent CPL was observed from ‘good solvent’, giving an excimer-like CPL emission with a peak maximum at 643 nm. Moreover, the CPL bands depended on the aggregated state, which was identical to the emission changes in the THF–H2O system. It is noteworthy that the perylene–carbazole dyad emitted efficient CPL in thin films even without annealing processes. The specific perylenyl–carbazole structure plays a crucial role in CPL in response to the external environment. This novel molecular design strategy opens up a new perspective for the future development of smart CPL-active organic dyads.

Graphical abstract: Stimuli-responsive circularly polarized luminescence from an achiral perylenyl dyad

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Publication details

The article was received on 07 Aug 2017, accepted on 12 Sep 2017 and first published on 12 Sep 2017


Article type: Paper
DOI: 10.1039/C7OB01959A
Citation: Org. Biomol. Chem., 2017,15, 8463-8470
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    Stimuli-responsive circularly polarized luminescence from an achiral perylenyl dyad

    J. Li, C. Yang, X. Peng, Q. Qi, Y. Li, W. Lai and W. Huang, Org. Biomol. Chem., 2017, 15, 8463
    DOI: 10.1039/C7OB01959A

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