苯并咪唑
荧光
聚集诱导发射
发光
芳基
连接器
化学
光化学
噻吩
戒指(化学)
苯
吸收(声学)
溶剂
生物相容性
材料科学
有机化学
光电子学
物理
复合材料
计算机科学
操作系统
烷基
量子力学
作者
Siqin Yi,Yilan Wang,Hongliang Liu,Xiaowan Yuan,Hui Li,Shouzhi Pu
标识
DOI:10.1016/j.jphotochem.2021.113661
摘要
Three triphenylethylene benzimidazole derivatives TPT-BI, TPPT-BI and TPB-BI with aggregation-induced emission properties were synthesized, and the effect of connecting aromatic rings was studied. Among these TPT-based luminescent agents, TPT-BI showed the biggest red-shift, which may be due to the noncoplanar structure caused by thiophene as a connection ring. TPB-BI displayed the strongest fluorescence emission intensity and the longest lifetime, which may be due to the longest conjugate chain caused by two benzene rings as connection ring. Moreover, their solid-state fluorescence could be effectively adjusted through mechanical grinding and solvent fuming, and they all exhibited reversible mechanofluorochromic performance. Furthermore, these TPT-based luminescent agents showed low toxicity and biocompatibility, so they could be used as fluorescent dyes for cell imaging.
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