Rapid colorimetric recognition of tetrafluoroborate in water based on a phenol red derivative

IF 2.1 3区化学 Q2 CHEMISTRY, ORGANIC

Tetrahedron Pub Date : 2025-05-23 DOI:10.1016/j.tet.2025.134745

Jiabin Lu , Qi Liu , Meipin Liu , Lanqin Tang , Lin Sun , Xinyu Song , Ruiyu Jiang , Lei Zhang

引用次数: 0

Abstract

Anion recognition in water by artificial receptors with high binding affinities remains challenging. Herein, we report a water-soluble colorimetric anion receptor synthesized via one-step aldehyde functionalization of phenol red (PS), characterized by NMR, MS, FTIR, and TGA. The modified receptor (MPS) exhibits solvent-, pH-, and anion-responsive chromism, contrasting with unmodified PS. MPS enables rapid BF₄⁻ recognition in pure water, inducing a distinct red-to-yellow color change. UV–vis titration reveals a 1:1 binding stoichiometry with an ultrahigh affinity of 2.7 × 10⁶ M⁻¹, surpassing most reported receptors. MPS achieves a BF₄⁻ detection limit of 10⁻⁵ M and maintains selectivity against common anions and cations. This work provides a strategy for designing high-performance aqueous-phase anion sensors.

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基于酚红衍生物的水中四氟硼酸盐的快速比色识别

通过具有高结合亲和力的人工受体识别水中阴离子仍然具有挑战性。在此，我们报道了一种水溶性比色阴离子受体，通过一步醛功能化苯酚红（PS）合成，并通过NMR， MS， FTIR和TGA进行了表征。与未修饰的受体相比，修饰后的受体（MPS）表现出溶剂、pH和阴离子响应色性。MPS能够在纯水中快速识别BF4 -，诱导出明显的红到黄的颜色变化。紫外-可见滴定显示了1:1的结合化学计量，具有2.7 × 106 M−1的超高亲和力，超过了大多数报道的受体。MPS对BF4−的检测限为10−5 M，并保持对常见阴离子和阳离子的选择性。这项工作为设计高性能的水相阴离子传感器提供了一种策略。

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

Tetrahedron 化学-有机化学

CiteScore

3.90

自引率

4.80%

发文量

439

审稿时长

34 days

期刊介绍： Tetrahedron publishes full accounts of research having outstanding significance in the broad field of organic chemistry and its related disciplines, such as organic materials and bio-organic chemistry. Regular papers in Tetrahedron are expected to represent detailed accounts of an original study having substantially greater scope and details than that found in a communication, as published in Tetrahedron Letters. Tetrahedron also publishes thematic collections of papers as special issues and ''Reports'', commissioned in-depth reviews providing a comprehensive overview of a research area.