用于荧光识别硫酸氢的芘-钙[4]三唑鎓共轭物

IF 4.6 1区化学 Q1 CHEMISTRY, ORGANIC Organic Chemistry Frontiers Pub Date : 2024-06-13 DOI:10.1039/d4qo00704b

Jihee Cho, Rakesh Parida, Changhyun Lim, Jin Yong Lee, Jong Seung Kim, Sanghee Kim

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引用次数: 0

摘要

我们开发了一种新型荧光传感器，其中芘通过酯连接体与钙[4]三唑鎓共轭，并研究了其与阴离子结合的能力。有趣的是，在 Py-CT4 中加入 HSO4- 会导致荧光增加，而其他阴离子则影响不大。这一现象归因于形成了 1:1 的 Py-CT4-HSO4- 配位复合物，干扰了光诱导电子转移（PET）过程。Py-CT4 对 HSO4- 的选择性是与 HSO4- 适当的空间互补性和氢键相互作用的结果。密度泛函理论（DFT）计算可以很好地解释 PET 过程引起的结合模式和荧光变化。

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A Pyrene-Calix[4]triazolium Conjugate for Fluorescence Recognition of Hydrogen Sulfate

A new fluorescent sensor was developed, in which pyrene is conjugated to calix[4]triazolium via an ester linker, and its ability to bind anions was investigated. Interestingly, addition of HSO4- to Py-CT4 resulted in increased fluorescence, but other anions had little effect. This phenomenon is attributed to the formation of a 1:1 stoichiometric Py-CT4-HSO4- complex that interferes with the photoinduced electron transfer (PET) process. The selectivity of Py-CT4 for HSO4− is the result of appropriate spatial complementarity to, and hydrogen bond interaction with, HSO4−. The binding mode and fluorescence changes caused by the PET process can be explained well by density functional theory (DFT) calculations.

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来源期刊

Organic Chemistry Frontiers CHEMISTRY, ORGANIC-

CiteScore

7.90

自引率

11.10%

发文量

686

审稿时长

1 months

期刊介绍： Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.