Synthesis and Characterization of Novel Photoactive Metal–Organic Frameworks for Fluorescence Sensing of Fe3+

IF 3.2 4区化学 Q2 CHEMISTRY, ANALYTICAL

Luminescence Pub Date : 2025-03-24 DOI:10.1002/bio.70147

Jing Li, Hongjiang Ren, Yunhui Zhai, Liuchang Wang, Jiangtao Li

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引用次数: 0

Abstract

Coordination polymers (CPs) have garnered attention for their versatile structures and applications in fluorescence sensing and photochromic materials. Addressing the need for sensitive and selective detection of Fe³⁺, a crucial ion in biological, environmental, and industrial systems, this study synthesized two novel CPs, [Zn (cmmb)(bpy)_1/2] (CP1) and [Cd₅(μ₃-OH)₂(cmmb)₄] (CP2) [bpy = 4,4′-bipyridine], via hydrothermal reactions with 4-(carboxymethyl)-2-methoxybenzoic acid (H₂cmmb). Structural analysis confirmed their frameworks, which facilitate strong host–guest interactions and electron transfer modulation. Both CPs exhibited excellent Fe³⁺ sensing capabilities, with fluorescence quenching constants of 4.922 × 10⁴ M⁻¹ (CP1) and 3.294 × 10⁴ M⁻¹ (CP2), outperforming their responses to other ions. These results underscore the potential of CP1 and CP2 as effective materials for Fe³⁺ detection, providing valuable insights for designing functional CPs for ion sensing applications.

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Fe3+荧光传感新型光活性金属有机骨架的合成与表征

配位聚合物（CPs）由于其结构多样，在荧光传感和光致变色材料中的应用越来越受到人们的关注。为了满足生物、环境和工业系统中重要离子Fe3+的灵敏和选择性检测需求，本研究通过与4-（羧甲基）-2-甲氧基苯甲酸（H2cmmb）的水热反应合成了两种新型CPs [Zn (cmmb)(bpy)1/2] （CP1）和[Cd5(μ3-OH)2(cmmb)4] (CP2) [bpy = 4,4 ' -联吡啶]。结构分析证实了它们的结构，促进了强的主客体相互作用和电子转移调制。两种CPs均表现出优异的Fe3+感应能力，荧光猝灭常数分别为4.922 × 104 M−1 （CP1）和3.294 × 104 M−1 (CP2)，优于其他离子。这些结果强调了CP1和CP2作为Fe3+检测有效材料的潜力，为设计用于离子传感应用的功能CPs提供了有价值的见解。

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

Luminescence 生物-生化与分子生物学

CiteScore

5.10

自引率

13.80%

发文量

248

审稿时长

3.5 months

期刊介绍： Luminescence provides a forum for the publication of original scientific papers, short communications, technical notes and reviews on fundamental and applied aspects of all forms of luminescence, including bioluminescence, chemiluminescence, electrochemiluminescence, sonoluminescence, triboluminescence, fluorescence, time-resolved fluorescence and phosphorescence. Luminescence publishes papers on assays and analytical methods, instrumentation, mechanistic and synthetic studies, basic biology and chemistry. Luminescence also publishes details of forthcoming meetings, information on new products, and book reviews. A special feature of the Journal is surveys of the recent literature on selected topics in luminescence.