芳基2-吡啶酮-融合2-吡啶酮超低pH传感的tict关闭荧光探针的研制

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-04-01 DOI:10.1016/j.dyepig.2025.112795

Chen Zhu , Jinfeng Zhang , Tianxing Li, Hui Jin, Lixin Zhang

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引用次数: 0

摘要

芳基2-吡啶酮-融合2-吡啶酮PPDO是一种基于tict的荧光探针，用于检测狭窄pH范围（pH 2.5 ~ 1.0）内的极端酸度。加入HCl后，PPDO在480 nm处发生荧光猝灭。密度泛函理论（DFT）计算和1H NMR谱分析表明，该检测机制可能是由电子推拉效应的增强和空间位阻的增加控制的，它们调节了TICT过程。该探针具有几个优点，包括大的斯托克斯位移，高灵敏度，优异的选择性和快速的响应时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Development of aryl 2-pyridinone-fused 2-pyrimidone as a TICT-based turn-off fluorescent probe for ultra-low pH sensing

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Development of aryl 2-pyridinone-fused 2-pyrimidone as a TICT-based turn-off fluorescent probe for ultra-low pH sensing

An aryl 2-pyridinone-fused 2-pyrimidone, PPDO, was developed as a TICT-based fluorescent probe for detecting extreme acidity within a narrow pH range (from pH 2.5 to 1.0). Upon the addition of HCl, PPDO exhibits fluorescence quenching at 480 nm. Density functional theory (DFT) calculations and ¹H NMR spectroscopy reveal that the detection mechanism is probably governed by an enhanced electron push-pull effect and increased steric hindrance, which modulate the TICT process. This probe offers several advantages, including a large Stokes shift, high sensitivity, excellent selectivity, and rapid response time.

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.