Wang Zidi, Shu Lijuan, Luo Xinyue, Tu Yayi, Lv Junfei, Liu Gang, Fan Congbin, Pu Shouzhi
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, People's Republic of China.
J Fluoresc. 2022 Nov;32(6):2213-2222. doi: 10.1007/s10895-022-03020-2. Epub 2022 Aug 28.
A new diarylethene derivative 1O decorated with a salicylaldehyde hydrazine moiety was designed and synthesized successfully, and its structure was confirmed by NMR. Diarylethene 1O showed eminent photochromism and high selectivity and sensitivity for Al with turn-on fluorescent performance. As the concentration of Al in 1O solution increased, the color of solution remarkably changed from dark to bright green with 313-fold fluorescent emission intensity enhancement. The 1:1 combination stoichiometry between 1O and Al was verified by Job's plot and MS analysis. The association constant between 1O and Al was 3.9 × 10 mol L, and the limit of detection toward Al was 7.98 × 10 mol L. Meanwhile, the probe can be utilized in practical water and logic circuits.
成功设计并合成了一种带有水杨醛肼部分修饰的新型二芳基乙烯衍生物1O，其结构通过核磁共振得以确认。二芳基乙烯1O表现出卓越的光致变色性能以及对铝的高选择性和灵敏度，并具有开启型荧光性能。随着1O溶液中铝浓度的增加，溶液颜色从深色显著变为亮绿色，荧光发射强度增强了313倍。通过Job曲线和质谱分析验证了1O与铝之间1:1的结合化学计量比。1O与铝之间的缔合常数为3.9×10⁴ mol⁻¹L，对铝的检测限为7.98×10⁻⁸ mol⁻¹L。同时，该探针可用于实际水样和逻辑电路中。
