Zhang Tianren, Wang Qingyan, Ma Mingwen, Zuo Youpeng, Li Fajun, Xie Xusheng, Wei Yuchen, Wang Guizhi, Hu Xueqing
Key Laboratory of Spin Electron and Nanomaterials of Anhui Province, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, Anhui, China.
Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Ministry of Education, Jilin University, Changchun, 130012, Jilin, China.
J Fluoresc. 2025 Jun 21. doi: 10.1007/s10895-025-04415-7.
In recent years, luminescent materials with stimuli-responsive properties have attracted extensive attention. In this article, the gelation induced emission enhancement (GIEE) property of an 1,3,4-oxadiazole derivative (4-POXD-B8) was studied. The formation of the J-aggregate was viewed as the reason for this GIEE property, which was proved by UV-vis spectra. 4-POXD-B8 was found to exhibit a triple-channel (color, fluorescence and state change) response to trifluoroacetic acid (TFA). It was speculated that the reason for the acid responsiveness of 4-POXD-B8 was that the molecule was protonated after the addition of TFA, which can be confirmed by 1 H NMR and UV-vis spectra. In addition, the encryption-decryption process of information under visible and UV light was realized by using 4-POXD-B8 and TFA/triethylamine (TEA), which may provide some reference for future information storage.
近年来，具有刺激响应特性的发光材料引起了广泛关注。在本文中，研究了一种1,3,4-恶二唑衍生物（4-POXD-B8）的凝胶化诱导发射增强（GIEE）特性。J-聚集体的形成被认为是这种GIEE特性的原因，这通过紫外可见光谱得到了证实。发现4-POXD-B8对三氟乙酸（TFA）表现出三通道（颜色、荧光和状态变化）响应。据推测，4-POXD-B8对酸响应的原因是加入TFA后分子发生了质子化，这可以通过1H NMR和紫外可见光谱得到证实。此外，利用4-POXD-B8和TFA/三乙胺（TEA）实现了可见光和紫外光下信息的加密-解密过程，这可能为未来的信息存储提供一些参考。
