The unusual aggregation-induced emission of coplanar organoboron isomers and their lipid droplet-specific applications†,Materials Chemistry Frontiers

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The unusual aggregation-induced emission of coplanar organoboron isomers and their lipid droplet-specific applications†
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2018-05-30 00:00:00 , DOI: 10.1039/c8qm00184g
Jen-Shyang Ni _{1,

2,

3} , Haixiang Liu _{1,

2,

3,

4,

5} , Junkai Liu _{3,

6,

7,

8,

9} , Meijuan Jiang _{1,

2,

3,

4,

5} , Zheng Zhao _{1,

2,

3,

4,

5} , Yuncong Chen _{1,

2,

3,

4,

5} , Ryan T. K. Kwok _{1,

2,

3,

4,

5} , Jacky W. Y. Lam _{1,

2,

3,

4,

5} , Qian Peng _{3,

6,

7,

8,

9} , Ben Zhong Tang _{1,

2,

3,

4,

5}

Affiliation

Luminogens with aggregation-induced emission (AIE) characteristics generally possess twisted structures to prevent emission quenching in the solid state by π–π stacking interactions. In this work, new organoboron derivatives with coplanar structures were synthesized and found to be AIE-active. Analysis by photoluminescence spectroscopy, single crystal X-ray diffraction and theoretical calculations depicted that the distinct luminescence behaviors of the molecules stemmed from the different extent of excited-state double-bond reorganization (ESDBR), which consumed the energy of the excitons through non-radiative pathways. This process was restricted in a highly viscous medium or in the solid state to enable the molecules to emit efficiently. The organoboron derivatives based on the ESDBR mechanism not only provide a new strategy to design coplanar AIE luminogens but also act as biological probes excellently and specifically targeting lipid droplets.

中文翻译：

共平面有机硼异构体的异常聚集诱导发射及其特定脂滴的应用†

具有聚集诱导发射（AIE）特性的发光剂通常具有扭曲的结构，以防止固态通过π-π堆积相互作用而猝灭发射。在这项工作中，合成了具有共面结构的新有机硼衍生物，并发现它们具有AIE活性。通过光致发光光谱分析，单晶X射线衍射和理论计算可知，分子的不同发光行为是由不同程度的激发态双键重组（ESDBR）引起的，该激发态双键重组通过非能级吸收了激子的能量。辐射途径。该过程被限制在高粘度介质或固态中，以使分子有效发射。

更新日期：2018-05-30

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