Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan.
Chemistry. 2013 Apr 2;19(14):4506-12. doi: 10.1002/chem.201203703. Epub 2013 Jan 30.
A series of boron ketoiminate derivatives that exhibited clear aggregation-induced emission (AIE) characteristics (in THF: Φ(PL)≤0.01; in the solid state: Φ(PL)=0.30-0.76) were prepared by the reactions of 1,3-enaminoketone derivatives with boron trifluoride-diethyl etherate. The structures and optical properties were investigated by UV-visible spectroscopy, photoluminescent (PL) spectroscopy, and X-ray single-crystal measurements. These results indicate that the AIE characteristics were derived from molecular motions of the boron-chelating rings with a boron-nitrogen (B-N) bond. Furthermore, the optical properties were controllable by steric hindrance of the substituted groups on the nitrogen atom.
一系列表现出明显聚集诱导发光（AIE）特性的硼酮亚胺衍生物（在 THF 中：Φ(PL)≤0.01；在固态中：Φ(PL)=0.30-0.76）是通过 1,3-烯胺酮衍生物与三氟化硼-二乙醚的反应制备的。通过紫外-可见光谱、荧光（PL）光谱和 X 射线单晶测量研究了它们的结构和光学性质。这些结果表明，AIE 特性源自硼螯合环与硼-氮（B-N）键的分子运动。此外，光学性质可以通过氮原子上取代基的空间位阻来控制。
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