Exploiting P-chemistry to modulate the thermally activated delayed fluorescence of organic fluorophores
Résumé
A series of six organophosphorus emitters featuring phosphinate and phosphinic acid groups as electron-accepting moieties coupled to various arylamine-based donor groups has been synthesized and fully characterized. Their photophysical properties were extensively investigated and the structure property relationships were rationalized using TD-DFT calculations. This work demonstrates that a judicious choice of the P-substituent allows promoting or suppressing the thermally activated delayed fluorescence (TADF). This investigation also offers interesting perspectives toward the preparation of stimuli-responsive TADF derivatives.
Domaines
Chimie
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1-s2.0-S0143720824000433-mmc1.pdf (1.77 Mo)
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