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Solid AIE fluorophore molecule with specific response of amide functional group to detect gaseous phosgene
Dyes and Pigments ( IF 4.1 ) Pub Date : 2023-05-13 , DOI: 10.1016/j.dyepig.2023.111386
Ziqi Li , Ao Shen , Xiaohui Hao , Mengwen Li , Yongwei Zhao , Lala Hou , Ruochen Duan , Panqing Zhang , Man Du , Xuebing Wang , Xue Li , Xiuqing Zhao , Yunxu Yang

A new solid Aggregation-induced Emission (AIE) fluorophore molecule (Ind-CONH2) for specific response of gaseous phosgene based on the dehydration of primary amide to nitrile was designed. Specially, visible AIE color changes of Ind-CONH2 with phosgene could be observed directly from bright blue to greenish blue on a portable solid-state test-strip under a 365 nm ultraviolet (UV) lamp, which showed inverse color changes from colorless to bright blue in homogeneous acetonitrile solution due to intramolecular charge transfer (ICT) effect. LOD of Ind-CONH2 for phosgene in acetonitrile was 1.52 nM and that for gaseous phosgene was 0.16 ppm (response time was less than 10 s in acetonitrile and 3 min for gas), which had a good development prospect in detecting phosgene. Additionally, Ind-CONH2 was successfully used as an erasable fluorescent anti-counterfeiting ink.



中文翻译:

具有酰胺官能团特异性响应的固态AIE荧光团分子检测气态光气

设计了一种新的固体聚集诱导发光 (AIE) 荧光团分子 ( Ind-CONH 2 ),用于基于伯酰胺脱水生成腈的气态光气特异性响应。特别地,在 365 nm 紫外线 (UV) 灯下,可以在便携式固态测试条上直接观察到 Ind-CONH 2 与光气的可见 AIE 颜色变化,从亮蓝色到绿蓝色,显示从无色到无色的变化由于分子内电荷转移 (ICT) 效应,均匀乙腈溶液中呈亮蓝色。Ind-CONH 2的 LOD乙腈中光气为1.52 nM,气态光气为0.16 ppm(响应时间乙腈小于10 s,气体小于3 min),在检测光气方面具有良好的发展前景。此外,Ind-CONH 2被成功用作可擦荧光防伪油墨。

更新日期:2023-05-18
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