用NASH反应测定有机和水环境中的氰化物

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-05-16 DOI:10.1016/j.dyepig.2025.112898

Ebubekir Kandemir , Burcu Aydıner , Ertan Şahin , Yilmaz Sakalli , Nurgül Seferoğlu , Zeynel Seferoğlu

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引用次数: 0

摘要

以3,5-二硝基苯甲酰胺为基础，合成了具有氰化物选择性和敏感性的新型九种比色和荧光化合物。通过x射线和ESEM分析确定了化合物的结晶结构和表面形貌（2、4、5、7和8）。研究了有机（DMSO）和水溶液中对竞争阴离子如F−、AcO−和H2PO4 -的氰化物敏感性能。化合物与氰化物离子相互作用后，呈现出由无色变为蓝/紫色和粉红色的鲜明荧光。此外，测试条等实际应用表明，化合物很容易因氰化物而改变颜色和排放。通过1H NMR滴定法、密度泛函理论（DFT）和时间依赖DFT （TD-DFT）计算确定了通过脱质子和加成过程形成的化合物及其配合物的结构和电子性质。

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Determination of cyanide in organic and aqueous environments by NASH reaction

Cyanide selective and sensitive 3,5-dinitrobenzamide based novel nine colorimetric and fluorimetric compounds were synthesized. The compounds' crystallized structures and surface morphologies (2, 4, 5, 7, and 8) were determined by X-ray and ESEM analysis. The cyanide sensing properties were investigated against competing anions such as F⁻, AcO⁻, and H₂PO₄^– in organic (DMSO) and aqueous solutions. The compounds exhibit a vivid color change from colorless to blue/purple and pink fluorescence after interacted with cyanide ion. Also, practical applications such as test strips showed that compounds easily change color and emission with cyanide. The structural and electronic properties of the compounds and their complexes formed via deprotonation and addition processes were determined with ¹H NMR titration and Density Functional Theory (DFT) and time-dependent DFT (TD-DFT) calculations.

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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.