在一个体系中四苯基乙烯、BODIPY和三联吡啶的发光金属环的自组装。
Self-assembly of emissive metallocycles with tetraphenylethylene, BODIPY and terpyridine in one system.
作者信息
Yan Yu, Yin Guang-Qiang, Khalife Sandra, He Zhan-Hang, Xu Chen, Li Xiaopeng
机构信息
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
Department of Chemistry, University of South Florida, Tampa, FL, USA.
出版信息
Supramol Chem. 2019;31(8):597-605. doi: 10.1080/10610278.2019.1659266. Epub 2019 Aug 30.
Tetraphenylethylene (TPE) related (supra)molecules have been intensively investigated due to their aggregation-induced emission (AIE) effect based on the restriction of intramolecular rotation (RIR). Meanwhile, boron-dipyrromethene (BODIPY) tends to emit intense fluorescence with high quantum yields. Herein, we combined TPE, BODIPY and terpyridine (TPY) into one system to study the emissive behaviour of organic building block as well as a self-assembled metallo-supramolecule. The TPY and BODIPY substituents with bulky sizes provide strong hindrance to restrict the rotation of the phenyl groups on TPE, leading to enhancement of emissive properties in both solution and aggregation states. Furthermore, the BODIPY-TPE-TPY ligand () was assembled with Zn (II) through coordination-driven self-assembly to form a cyclic dimer () with typical AIE characteristics.
由于基于分子内旋转受限（RIR）的聚集诱导发光（AIE）效应，四苯基乙烯（TPE）相关的（超）分子受到了广泛研究。同时，硼二吡咯亚甲基（BODIPY）倾向于以高量子产率发出强烈荧光。在此，我们将TPE、BODIPY和三联吡啶（TPY）组合到一个体系中，以研究有机结构单元以及自组装金属超分子的发光行为。具有较大体积的TPY和BODIPY取代基对限制TPE上苯基的旋转提供了很强的阻碍作用，导致在溶液和聚集态下发光性能均增强。此外，BODIPY-TPE-TPY配体（）通过配位驱动的自组装与Zn（II）组装形成具有典型AIE特征的环状二聚体（）。
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