两种新的基于二羧酸酯和双（苯并咪唑）混合配体的2D cd（II）配位聚合物：恩诺沙星的合成、结构和发光传感

IF 2.6 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-07-13 DOI:10.1016/j.poly.2025.117684

Xiao-Chen Deng, Zi-Han Gao, Guang-Hua Cui

引用次数: 0

摘要

采用水热法合成了两种新型三元Cd（II）配位聚合物（CPs） {[Cd1.5(L)(TBTA)1.5(H2O)]·2.5H2O}n(1)和{[Cd1.5(L)(TCPA)1.5(H2O)]·3H2O}n (2) （L = 1,3-二（n -吡啶-苯并咪唑-4-基）-2-氧丙烷，H2TBTA = 2,3,5,6-四溴对苯二甲酸，H2TCPA = 2,3,5,6-四氯对苯二甲酸）。CPs 1和CPs 2显示出新的二维3,4连接层，并通过氢键相互作用进一步组装成三维超分子框架。荧光传感实验表明，两种CPs在水溶液中对恩诺沙星有很高的选择性，缺陷限分别为1.76 × 10−6和4.89 × 10−7 mol·L−1。荧光共振能量转移对两种CPs的荧光猝灭起决定性作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Two new 2D cd(II) coordination polymers based dicarboxylate and bis(benzimidazole) mixed-ligands: Synthesis, structures and luminescence sensing of enrofloxacin

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Two new 2D cd(II) coordination polymers based dicarboxylate and bis(benzimidazole) mixed-ligands: Synthesis, structures and luminescence sensing of enrofloxacin

Two new ternary Cd(II) coordination polymers (CPs), namely {[Cd_1.5(L)(TBTA)_1.5(H₂O)]·2.5H₂O}_n (1) and {[Cd_1.5(L)(TCPA)_1.5(H₂O)]·3H₂O}_n (2) (L = 1,3-bis(N-pyridyl-benzimidazol-4-yl)-2-oxopropane, H₂TBTA = 2,3,5,6-tetrabromoterephthalic acid, H₂TCPA = 2,3,5,6-tetrachloroterephthalic acid) were hydrothermally synthesized and characterized. CPs 1 and 2 show 2D new 3,4-connected layer which further assemble into 3D supramolecular framework via hydrogen−bonding interactions. Fluorescence sensing experiments display that two CPs were highly selective for sensing enrofloxacin in an aqueous solution with the limit of defections being 1.76 × 10⁻⁶ and 4.89 × 10⁻⁷ mol·L⁻¹, respectively. The fluorescence resonance energy transfer is decisive for the fluorescence quenching of two CPs.

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.