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IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2025-01-20 DOI:10.1002/aoc.8002

Yufen Li, Xiaomei Wang, Zhenqi Tan, Lanqing Liu, Qicheng Wang, Tao Yang, Xinhui Zhou, Zhigang Niu

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引用次数: 0

摘要

通过水热法合成了一种新型金属有机框架 (MOF) [Eu3L4(CH3COO)(H2O)7]-(CH3CN)5（1），它基于配体 H2L（3′,5′-二（1H-1,2,4-三唑-1-基）-[1,1′-联苯]-3,5-二羧酸）。利用晶体学、PXRD、扫描电镜、傅里叶变换红外光谱和热重分析等一系列技术对 1 进行了全面的表征。在 N,N-二甲基甲酰胺（DMF）溶液中对 1 的荧光传感行为进行了检测。结果表明，在咖啡酸（CA）的存在下，1 表现出明显的 "熄灭 "荧光现象。尽管有 11 种潜在物质的干扰，但 1 仍能有效识别 CA。在 0-5 μM 范围内，1 的发光强度比与 CA 浓度呈很强的线性关系。Ksv 值为 2.49 × 105 M-1。此外，还利用 PXRD、SEM、UV-Vis 和荧光寿命法对其检测机制进行了研究。

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A Luminescent Lanthanide MOF for the Selective and Ultra-High Sensitivity Detection of Caffeic Acid

A novel metal–organic framework (MOF) [Eu₃L₄(CH₃COO) (H₂O)₇]·(CH₃CN)₅ (1) based on the ligand H₂L (3′,5′-di(1H-1,2,4-triazole-1-yl)-[1,1′-biphenyl]-3,5-dicarboxylic acid) has been synthesized by the hydrothermal method. A complete characterization of 1 was conducted, employing a range of techniques including crystallography, PXRD, SEM, FTIR spectroscopy, and TGA analysis. The fluorescence sensing behavior of 1 was examined in a solution of N,N-dimethylformamide (DMF). The results demonstrated that 1 exhibited a pronounced “turn-off” fluorescence phenomenon in the presence of caffeic acid (CA). Despite the interference of 11 potential substances, 1 was still capable of effectively recognizing CA. The luminescence intensity ratio of 1 showed a strong linear relationship with CA concentration in the range 0–5 μM. The K_sv value was 2.49 × 10⁵ M⁻¹. Additionally, the detection mechanism was studied using PXRD, SEM, UV–Vis, and fluorescence lifetime methods.

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.