Ethynyl-Tolyl Extended 2-(2′-Hydroxyphenyl)benzoxazole Dyes: Solution and Solid-state Excited-State Intramolecular Proton Transfer (ESIPT) Emitters
作者:Maxime Munch、Mathieu Curtil、Pauline M. Vérité、Denis Jacquemin、Julien Massue、Gilles Ulrich
DOI:10.1002/ejoc.201801590
日期:2019.2.7
synthesized. Their optical properties reveal increased quantum yields values in solution as compared to unsubstituted analogues while keeping strong fluorescence intensities in the solid‐state. These scaffolds also allow the stabilization of an anionic species in selected cases, as evidenced by basic titrations. The nature of the excited‐states was also rationalized using ab initio calculations.
合成了一系列基于乙炔基延伸的HBO支架的ESIPT发射体。与未取代的类似物相比,它们的光学性质显示了溶液中量子产率的增加,同时在固态中保持了很强的荧光强度。这些支架还可以在某些情况下稳定阴离子种类,如基本滴定所证明的。激发态的性质也通过使用从头算来合理化。