Zhou, He-Ye published the artcileA Calix[3]acridan-Based Host-Guest Cocrystal Exhibiting Efficient Thermally Activated Delayed Fluorescence, Application of Phthalonitrile, the main research area is thermally activated delayed fluorescence; Charge Transfer; Cocrystal; Host-Guest Interactions; Macrocycles; Thermally Activated Delayed Fluorescence.
A supramol. strategy to construct thermally activated delayed fluorescence (TADF) materials through host-guest charge transfer interactions was proposed. Consequently, a new class of macrocycle namely calix[3]acridan was conveniently synthesized in 90% yield. The host-guest cocrystal formed by calix[3]acridan and 1,2-dicyanobenzene exhibited efficient TADF properties due to intense intermol. charge transfer interactions. Moreover, the spatially separated HOMO and LUMO resulted in a very small singlet-triplet energy gap of 0.014 eV and hence guaranteed an efficient reverse intersystem crossing for TADF. Especially, a high photoluminescence quantum yield of 70% was achieved, and it represents the highest value among the reported intermol. donor-acceptor TADF materials.
Angewandte Chemie, International Edition published new progress about Absorptivity. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application of Phthalonitrile.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts