A series of V‐shaped luminophores containing electron‐withdrawing quinoxaline core and arylthienyl donor fragments at positions 2 and 3 has been successfully synthesized. Their photophysical properties in two solvents as well as halochromism have been studied, and the ability of 4‐diethylaminophenyl derivative to function as colorimetric and luminescent pH sensor has been demonstrated with significant color changes and luminescence switching upon the introduction of acid.

中文翻译：

---

新的2,3-双（5-芳基噻吩-2-基）喹喔啉衍生物：合成和光物理性质

已经成功合成了一系列V型发光体，这些发光体在2和3位包含吸电子喹喔啉核心和芳基噻吩基供体片段。研究了它们在两种溶剂中的光物理性质以及卤致变色现象，并且证明了4-二乙基氨基苯基衍生物具有比色和发光pH传感器的功能，并且在引入酸后会发生显着的颜色变化和发光转换。