期刊
INORGANIC CHEMISTRY
卷 61, 期 19, 页码 7286-7295出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.1c03935
关键词
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资金
- National Natural Science Foundation of China [22063010, 21763028]
- Shaanxi University Student Innovation Plan project of Shaanxi Provincial [S202110719063]
In this study, five structurally similar lanthanide metal-organic frameworks (Ln-MOFs) were synthesized using a multicarboxylate aromatic ligand. These frameworks exhibit a three-dimensional mesoporous structure and show selective detection capabilities for different substances. One of the frameworks, labeled as "3", demonstrates excellent highly sensitive detection performance, suggesting potential applications in future research.
When a multicarboxylate aromatic ligand, 3,5-di(2 ',4 '-dicarboxylphenyl)benzoic acid (H5L), was employed,five structurally similarlanthanide metal-organic frameworks (Ln-MOFs), {[Pr10L6(OH)3Cl(H2O)6]middot4C2H8N}n(1), {[Nd10L6(OH)4(H2O)9]middot4C2H8N}n(2),{[Gd10L6(OH)4(H2O)3]middot4C2H8N}n(3), {[Ho10L6(OH)4(H2O)3]middot4C2H8N}n(4)and{[Er10L6(OH)4(H2O)6]middot4C2H8N}n(5), were synthesized andcharacterized. Single-crystal X-ray structural analyses disclosed that allfiveLn-MOFs crystallize in the trigonalR3space group. They have three-dimensional mesoporous structure featuring the coexistence of binuclear andtetranuclear species as inorganic building units. The mesoporous structure of3was verified by the gas adsorption experiment of N2. Fluorescence analysisshowed that3can selectively detect Fe3+,Cr2O72-, and H2O2; furthermore, itcan be used for the electrochemical detection of trinitrophenol. With the meritof an excellent highly sensitive detection performance,3has unpredictable application prospects in future research fields.
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