Institute of Organic Chemistry of the Polish Academy of Sciences, Warsaw, Poland.
J Org Chem. 2010 Feb 19;75(4):1297-300. doi: 10.1021/jo902443s.
A novel blue-emitting polycyclic aromatic system was synthesized via anion-radical coupling. Its efficient direct hydroxylation led to a phenol possessing an intramolecular hydrogen-bond system. Since the energy gap difference between the enol and keto forms of this molecule is very small, characteristic of ESIPT chromophores, bathochromically shifted fluorescence was not observed.
通过阴离子自由基偶联合成了一种新型的蓝色发射多环芳烃体系。其有效的直接羟基化导致形成具有分子内氢键体系的苯酚。由于该分子的烯醇和酮形式之间的能隙差非常小，具有 ESIPT 生色团的特征，因此没有观察到荧光的红移。
