Publication details for Associate Professor Fernando DiasPashazadeh, Ramin, Pander, Piotr, Bucinskas, Audrius, Skabara, Peter J., Dias, Fernando B. & Grazulevicius, Juozas V. (2018). An iminodibenzyl–quinoxaline–iminodibenzyl scaffold as a mechanochromic and dual emitter: donor and bridge effects on optical properties. Chemical Communications 54(98): 13857-13860.
- Publication type: Journal Article
- ISSN/ISBN: 1359-7345 (print), 1364-548X (electronic)
- DOI: 10.1039/C8CC06981F
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
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.