Novel isoindigo compound with aggregation-induced emission: Br-Br bonding joint restriction of intramolecular motion and cell imaging properties.

Zhang, Zhenyu; Sun, Yu; Zhao, Xu; Jin, Nanxi; Xi, Gaolei; Zhang, Xuedong; Cao, Jingjin; Wu, Jia et al. · Soft Matter · 2021

basic_science · Level V

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Abstract

6,6'-Dibromided <i>tert</i>-butyloxycarbonyl isoindigo (Br-TBOCII) has intense fluorescence in the solid state <i>via</i> excitation with aggregation-induced emission (AIE), contrary to the classic heavy-atom effect. The unique AIE mechanism is attributed to the Br-Br bonding joint restricting intramolecular motion. Furthermore, the water-soluble nanoparticles Br-TBOCII/Pluronic® 127, possess robust photostability, low toxicity and good cell imaging performance.

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