A multifunctional metal–organic complex fluorescent probe for highly sensitive detection of lysine, CrO42-/Cr2O72-, Fe3+ and nitro-aromatic compounds

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganica Chimica Acta Pub Date : 2024-10-21 DOI:10.1016/j.ica.2024.122415

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Abstract

Water contamination caused by organic and inorganic compounds represents an urgent global issue. It is meaningful to detect these compounds. A metal–organic complex (Zn-HTBA) was investigated as a multifunctional fluorescent probe which showed exceptional fluorescence characteristics. The Zn- HTBA can specifically detect lysine in water through fluorescence enhancement, and the detection limit was 0.17 μM. The Zn-HTBA also selectively detect CrO₄^2-/Cr₂O₇^2- and Fe³⁺ with the detection limits of 0.014/0.022 and 0.12 μM through fluorescence quenching. In addition, the Zn-HTBA was found to sensitively detect nitroaromatic compounds in ethanol through fluorescence quenching. The possible detection mechanisms were studied in detail through UV–Vis, PXRD, XPS, etc. The mechanism of Zn-HTBA to detect CrO₄^2-/Cr₂O₇^2-, Fe³⁺ and 2-nitrotoluene was energy competition, and the mechanism of Zn-HTBA to detect lysine was the formation of hydrogen bonds.

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用于高灵敏度检测赖氨酸、CrO42-/Cr2O72-、Fe3+ 和硝基芳香族化合物的多功能金属有机络合物荧光探针

有机和无机化合物造成的水污染是一个紧迫的全球性问题。检测这些化合物非常有意义。研究人员将一种金属有机复合物（Zn-HTBA）作为多功能荧光探针进行了研究。Zn-HTBA 可通过荧光增强作用特异性地检测水中的赖氨酸，检测限为 0.17 μM。Zn-HTBA 还能通过荧光淬灭选择性地检测 CrO42-/Cr2O72- 和 Fe3+，检测限分别为 0.014/0.022 和 0.12 μM。此外，研究还发现 Zn-HTBA 能通过荧光淬灭灵敏地检测乙醇中的硝基芳香族化合物。通过 UV-Vis、PXRD、XPS 等对可能的检测机制进行了详细研究。Zn-HTBA 检测 CrO42-/Cr2O72-、Fe3+ 和 2-硝基甲苯的机理是能量竞争，而 Zn-HTBA 检测赖氨酸的机理是形成氢键。

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.