Cyanide detection using a highly selective fluorescent and colorimetrical double channel probe incorporating hybrid naphthopyran–benzothiazole in an aqueous solution

IF 2.1 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Supramolecular Chemistry Pub Date : 2021-08-03 DOI:10.1080/10610278.2022.2035386

Qiao Li, Jing Chang, Haixiong Shi, Teng Niu, Hongru Dong, H. Mu

引用次数: 1

Abstract

ABSTRACT A highly selective red-emitting fluorescent and colorimetric double-channel probe incorporating a conjugated benzopyran–benzothiazole system is proposed for the detection of cyanide (CN−) in water samples. Under the presence of CN−, the probe displays red fluorescence disappearance, having an immediate (<30 s) visible colour variation from red to colourless. Due to a blocking process where an intramolecular charge transfer occurs, the benzothiazole C = N bond of the probe is attacked by the CN− nucleophile; 1H NMR titration and DFT calculations for this occurrence varied. Results from this investigation enable feasible and simple test strips to be produced for detecting CN− in water samples. Graphical Abstract

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采用高选择性荧光和比色双通道探针在水溶液中结合杂化萘吡喃-苯并噻唑进行氰化物检测

摘要:提出了一种结合共轭苯并吡喃-苯并噻唑体系的高选择性红色荧光比色双通道探针，用于水样中氰化物(CN−)的检测。在CN−存在下，探针显示红色荧光消失，具有立即(<30 s)从红色到无色的可见颜色变化。由于发生分子内电荷转移的阻断过程，探针的苯并噻唑C = N键受到CN -亲核试剂的攻击;1H NMR滴定法和DFT计算对这一事件有所不同。本研究的结果使可行和简单的试纸用于检测水样中的CN -。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Supramolecular Chemistry 化学-化学综合

CiteScore

3.60

自引率

3.00%

发文量

审稿时长

2.7 months

期刊介绍： Supramolecular Chemistry welcomes manuscripts from the fields and sub-disciplines related to supramolecular chemistry and non-covalent interactions. From host-guest chemistry, self-assembly and systems chemistry, through materials chemistry and biochemical systems, we interpret supramolecular chemistry in the broadest possible sense. Interdisciplinary manuscripts are particularly encouraged. Manuscript types include: high priority communications; full papers; reviews, and; Methods papers, techniques tutorials highlighting procedures and technologies that are important to the field. We aim to publish papers in a timely fashion and as soon as a paper has been accepted and typeset it will be published in electronic form on the Latest articles section of the website. The two most important review criteria are that the paper presents high-quality work that fits generally into the broad spectrum of activities in the supramolecular chemistry field. Under normal circumstances, Supramolecular Chemistry does not consider manuscripts that would be more suitable in a highly specialized journal. This includes, but is not limited to, those based mostly or exclusively on topics such as solid state/X-ray structures, computational chemistry, or electrochemistry. . The two most important review criteria are that the paper presents high-quality work that fits generally into the broad spectrum of activities in the supramolecular chemistry field.