Synthesis, Structures, and Properties of Complexes Based on 3,5-bis(triazol-1-yl) Benzoic Acid as the Main Ligand

IF 3.4 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Crystal Growth & Design Pub Date : 2024-12-02 DOI:10.1021/acs.cgd.4c00749

Yunxia Yang*, Hongjuan Wang, Yingwa Guo and Xiangxiang Wu*,

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Abstract

In this paper, 3,5-bis(triazol-1-yl)-benzoic acid (L) is selected as the main ligand to combine with Cd(NO₃)₂·4H₂O to synthesize two complexes of Cd(L)₂ (1) and [Cd(L)(PCA)(H₂O)]·H₂O (2) (PCA = 2-pyrazinecarboxylic acid) under solvothermal conditions. Single-crystal X-ray diffraction analysis shows that complexes 1 and 2 exhibit different three-dimensional framework structures of the network and waveform, respectively. Solid-state fluorescence experiments show that 1 and 2 have excellent fluorescence properties. Ion sensing experiments illustrate that complex 1 can detect Fe³⁺ with a detection limit (LOD) of 0.132 μM, and complex 2 can selectively sense Cr₂O₇^2– (LOD: 0.066 μM). In addition, amino acid and antibiotic sensing experiments reveal that complex 1 has the ability to selectively sense tryptophan (LOD: 0.120 μM) by the fluorescence enhancement effect and tetracycline hydrochloride (LOD: 0.023 μM) by fluorescence quenching. Complex 2 can test sulfadiazine antibiotics (LOD: 4.780 μM) by fluorescence enhancement.

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3,5-二（三唑-1-基）苯甲酸为主配体配合物的合成、结构与性能

本文选择3,5-二（三唑-1-酰基）苯甲酸(L)为主要配体，与Cd(NO3)2·4H2O结合，在溶剂热条件下合成Cd(L)2(1)和[Cd(L)(PCA)(H2O)]·H2O (2) （PCA = 2-吡嗪羧酸）两种配合物。单晶x射线衍射分析表明，配合物1和2分别表现出不同的网状三维框架结构和波形。固体荧光实验表明，1和2具有优异的荧光性能。离子传感实验表明，配合物1对Fe3+的检测限为0.132 μM，配合物2对Cr2O72 -的检测限为0.066 μM。此外，氨基酸和抗生素传感实验表明，配合物1通过荧光增强效应选择性检测色氨酸（LOD: 0.120 μM），通过荧光猝灭选择性检测盐酸四环素（LOD: 0.023 μM）。配合物2可以荧光增强检测磺胺嘧啶类抗生素（LOD: 4.780 μM）。

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.