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Issue 98, 2018
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An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties

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Abstract

The influence of phenyl linkage and donor strength on the photophysical properties of new derivatives of quinoxaline-containing iminodibenzyl and iminostilbene moieties is studied. The donor–acceptor derivatives showed dual thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) despite a large energy gap between the excited singlet and triplet states (ca. 0.5 eV). This extremely rare observation is explained by the twisted and rigidified structure of the iminodibenzyl moiety.

Graphical abstract: An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties

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Publication details

The article was received on 28 Aug 2018, accepted on 19 Nov 2018 and first published on 23 Nov 2018


Article type: Communication
DOI: 10.1039/C8CC06981F
Citation: Chem. Commun., 2018,54, 13857-13860
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    An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties

    R. Pashazadeh, P. Pander, A. Bucinskas, P. J. Skabara, F. B. Dias and J. V. Grazulevicius, Chem. Commun., 2018, 54, 13857
    DOI: 10.1039/C8CC06981F

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