Wang Rui, Hou Meili, Xu Zhigang, Tan Luxi, Zhong Cheng, Zhu Linna
Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy, Southwest University Chongqing 400715 P. R. China
School of Chemistry and Chemical Engineering, Chongqing University Chongqing 401331 P. R. China.
RSC Adv. 2018 May 18;8(33):18327-18333. doi: 10.1039/c8ra00955d. eCollection 2018 May 17.
In this work, a triphenylamine-benzothiadiazole-based new fluorophore is obtained from a facile "one-step" protocol. A possible reduction mechanism is proposed, and an amine containing α-H plays a key role in the reduction reaction. The resultant product A1H2 exhibits bright red emission in solid state, with an absolute quantum yield of 44.5%. Aggregation induced emission enhancement of A1H2 is also observed with the increased water fraction in THF-HO mixture. The nanoparticles of A1H2 reveal good stability and biocompatibility, which are successfully applied in cellular cytoplasm imaging.
在这项工作中，通过简便的“一步法”合成方案得到了一种基于三苯胺-苯并噻二唑的新型荧光团。提出了一种可能的还原机理，含α-H的胺在还原反应中起关键作用。所得产物A1H2在固态下呈现亮红色发射，绝对量子产率为44.5%。在THF-H2O混合体系中，随着水含量的增加，A1H2还表现出聚集诱导发光增强现象。A1H2纳米颗粒具有良好的稳定性和生物相容性，并成功应用于细胞质成像。
