4,4′-(1,2-Phenylenebis(methyleneoxy))dibenzoate based Cd(II)-coordination polymer: A turn-off-on photoluminescent sensor against ascorbic acid and aspirin

IF 4.9 2区化学 Q1 CHEMISTRY, ANALYTICAL Microchemical Journal Pub Date : 2025-04-01 Epub Date: 2025-02-23 DOI:10.1016/j.microc.2025.113112

Jiajun Fang , Yiguo Ayue , Jingyi Liang , Lu Lu , Mohammad Khalid Parvez , Mohammed S. Al-Dosari , Shreya Srivastava , Abhinav Kumar

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Abstract

A new Cd(II)-coordination polymer (CP) [Cd(bpe)_0.5(L)] (1) has been synthesized employing 4,4′-(1,2-phenylenebis(methyleneoxy))dibenzoic acid (H₂L) and 1,2-bis(4-pyridyl)ethylene (bpe) ligands and characterized spectroscopically as well as by single-crystal X-ray diffraction which revealed that 1 is a 2D polymeric layer, in which the metal–ligand formation is built by the interesting H₂L bridging ligand. The CP 1 exhibits turn-off photoluminescent sensing of ascorbic acid (VC) showcasing limit of detection and K_SV of 1.325 × 10⁻⁵ M and 9.22 × 10³ M⁻¹, respectively. Theoretical calculations indicate that the turn-off sensing of VC by 1 can be accredited to the electron/energy transfer and non-covalent interactions between 1 and VC. Interestingly, the VC@1 material exhibited restoration in photoluminescent emission on adding acetyl salicylic acid (ASA) and hence can be used as turn-on sensor for the selective and sensitive detection of ASA with limit of detection towards ASA to be 2.757 × 10⁻⁵ M having K_SV value of 4.43 × 10⁴ M⁻¹ The explanation for the restoration in photoluminescence intensity of VC@1 on adding ASA has been rendered with theoretical calculations.

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4,4 ' -（1,2-苯基双（亚甲基氧基））二苯甲酸酯基Cd（II）配位聚合物：抗坏血酸和阿司匹林的光致发光传感器

以4,4′-（1,2-苯基双（亚甲氧基））二苯甲酸（H2L）和1,2-双（4-吡啶基）乙烯（bpe）为配体合成了一种新的Cd(II)-配位聚合物（CP） [Cd(bpe)0.5(L)](1)，并通过光谱和单晶x射线衍射对其进行了表征，结果表明：1是一个二维聚合物层，其中金属配体是由H2L桥接配体构建的。cp1表现出对抗坏血酸（VC）的关闭光致发光传感，检测限和KSV分别为1.325 × 10−5 M和9.22 × 103 M−1。理论计算表明，1对VC的关断感可归因于1与VC之间的电子/能量转移和非共价相互作用。有趣的是，VC@1材料在加入乙酰水杨酸（ASA）后表现出光致发光的恢复，因此可以用作ASA选择性和敏感检测的开启传感器，对ASA的检测限为2.757 × 10−5 M， KSV值为4.43 × 104 M−1。加入ASA后VC@1材料光致发光强度的恢复已经用理论计算给出了解释。

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来源期刊

Microchemical Journal 化学-分析化学

CiteScore

8.70

自引率

8.30%

发文量

1131

审稿时长

1.9 months

期刊介绍： The Microchemical Journal is a peer reviewed journal devoted to all aspects and phases of analytical chemistry and chemical analysis. The Microchemical Journal publishes articles which are at the forefront of modern analytical chemistry and cover innovations in the techniques to the finest possible limits. This includes fundamental aspects, instrumentation, new developments, innovative and novel methods and applications including environmental and clinical field. Traditional classical analytical methods such as spectrophotometry and titrimetry as well as established instrumentation methods such as flame and graphite furnace atomic absorption spectrometry, gas chromatography, and modified glassy or carbon electrode electrochemical methods will be considered, provided they show significant improvements and novelty compared to the established methods.