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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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Supplementary files

Article information


Submitted
28 Aug 2018
Accepted
19 Nov 2018
First published
23 Nov 2018

Chem. Commun., 2018,54, 13857-13860
Article type
Communication

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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