芘稠合[4]螺旋烯及其乙烯基前体光学性质的比较研究
A comparative study on optical properties of pyrene-fused [4]helicenes and vinyl precursors.
作者信息
Yang Guang, Liu Kai-Yue, Cao Jing-Yi, Yu Jia-Ying, Sun De-Li, Wang Chuan-Zeng, Zhao Wen-Xuan, Elsegood Mark R J, Teat Simon J, Zhu Cheng-Chen, Yamato Takehiko
机构信息
School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China; Department of Applied Chemistry, Faculty of Science and Engineering, Saga University Honjo-machi 1, Saga 840-8502, Japan.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2024 Jan 15;305:123529. doi: 10.1016/j.saa.2023.123529. Epub 2023 Oct 12.
Polycyclic aromatic hydrocarbon-fused [n]helicene derivatives (PAH-fused [n]helicenes) have been widely investigated due to their excellent photoelectric and chiroptical properties. Herein, a series of pyrene-fused helicenes were synthesized by a photocyclization reaction and characterized by H/C NMR spectroscopy and single crystal X-ray diffraction. All compounds and their vinyl precursors were studied as emitting materials. The experimental results reveal that these compounds possess reasonable emission efficiency (Φ = 97% for 3a) and tunable optical properties, and a wide emission band from bluish violet for 3c (401 nm) to green-yellow for 4c (530 nm) was observed. The detailed investigation indicated that an efficient, structure-controlled strategy was established to develop pyrene-based [n]helicene materials.
多环芳烃稠合的[n]螺旋烯衍生物（PAH稠合的[n]螺旋烯）因其优异的光电和手性光学性质而受到广泛研究。在此，通过光环化反应合成了一系列芘稠合螺旋烯，并通过H/C NMR光谱和单晶X射线衍射对其进行了表征。所有化合物及其乙烯基前体均作为发光材料进行了研究。实验结果表明，这些化合物具有合理的发光效率（3a的Φ = 97%）和可调谐的光学性质，并且观察到从3c（401 nm）的蓝紫色到4c（530 nm）的绿黄色的宽发射带。详细研究表明，已建立了一种高效、结构可控的策略来开发基于芘的[n]螺旋烯材料。
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