A water-stable terbium metal–organic framework as a highly sensitive fluorescent sensor for nitrite

Min, Hui; Han, Zongsu; Wang, Mengmeng; Li, Yongjie; Zhou, Tianze; Shi, Wei

doi:10.1039/d0qi00780c

Cited by 84 publications

(51 citation statements)

References 65 publications

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“…Two CoO 4 N 2 polyhedrons are connected by two -OCO-groups to generate a dinuclear Co 2 (CO 2 ) 2 SBU with a Co•••Co separation of 4.0417(4) Å. From a topological perspective, the structure can be simplified to a 6-connecting uninodal rob net (point symbol {4 8 •6 6 •8}).…”

Section: Resultsmentioning

confidence: 99%

“…The development of coordination polymers (CPs) has attracted more and more attention for its application in gas adsorption and separation, photo-or electro-catalysis, fluorescent probes, proton conduction, drug delivery, etc. [1][2][3][4][5][6][7]. However, the first problem to be solved in this field is the rational design structures, which is influenced by many factors (organic ligands, metal ions, solvent system, pH value and reaction temperature, etc.)…”

Section: Introductionmentioning

confidence: 99%

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The Length of Substituents on Ligands Regulates the Structural Diversity of Coordination Polymers

et al. 2021

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Three coordination polymers, namely, {[Co(L 1 )(HBTC)]•0.5L 1 , have been synthesized based on three semi-rigid nitrogen-containing ligands (L 1 = 4,4'-(2,5-dimethoxy-1,4-phenylene)dipyridine; L 2 = 4,4'-(2,5-diethoxy-1,4-phenylene)dipyridine; L 3 = 4,4'-(2,5-dibutoxy-1,4-phenylene)dipyridine) and 1,3,5-benzenetricarboxylic acid (H 3 BTC). Both I and II are a 4-connected uninodal sql net with point symbol {4 4 •6 2 }, III is a 6-connected uninodal rob net with point symbol {4 8 •6 6 •8}. The complexes were characterized by X-ray single-crystal diffraction (CIF files CCDC nos. 2034103 (II), 2034104 (III)), PXRD, IR spectra and TGA. Interestingly, the structural diversity of these complexes derived from the length of substituents on L n (n = 1, 2, 3) ligands.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Length of Substituents on Ligands Regulates the Structural Diversity of Coordination Polymers

et al. 2021

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“…Moreover, the boric acid exhibits a strong affinity to fluoride ions, while its interaction with other anions is relatively weak, making it perfect for fluoride selective sensing. Reports on enhancing antenna effect resulted in "turn-on" sensing are rather few comparing to the "turn-off" mechanism discussed above (Karmakar et al, 2019;Fueyo-González et al, 2020;Min et al, 2020;Wang et al, 2020;Yue et al, 2020). However, it is obvious that "turn-on" sensors have advantages over the "turn-off" sensors, especially in the quantitative determination of an analyte in low concentration (Luo et al, 2020).…”

Section: Ratiometric Fluorescent Sensing Mechanismsmentioning

confidence: 99%

“…Reports on enhancing antenna effect resulted in “turn-on” sensing are rather few comparing to the “turn-off” mechanism discussed above ( Karmakar et al, 2019 ; Fueyo-González et al, 2020 ; Min et al, 2020 ; Wang et al, 2020 ; Yue et al, 2020 ). However, it is obvious that “turn-on” sensors have advantages over the “turn-off” sensors, especially in the quantitative determination of an analyte in low concentration ( Luo et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

Sun

Gao

et al. 2021

Front. Chem.

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Fluorescent probes have attracted special attention in developing optical sensor systems due to their reliable and rapid fluorescent response upon reaction with the analyte. Comparing to traditional fluorescent sensing systems that employ the intensity of only a single emission, ratiometric fluorescent sensors exhibit higher sensitivity and allow fast visual screening of analytes because of quantitatively analyzing analytes through the emission intensity ratio at two or more wavelengths. Lanthanide metal–organic frameworks (LnMOFs) are highly designable multifunctional luminescent materials as lanthanide ions, organic ligands, and guest metal ions or chromophores are all potential sources for luminescence. They thus have been widely employed as ratiometric fluorescent sensors. This mini review summarized the basic concept, optical features, construction strategies, and the ratiometric fluorescent sensing mechanisms of dual-emitting LnMOFs. The review ends with a discussion on the prospects, challenges, and new direction in designing LnMOF-based ratiometric fluorescent sensors.

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“…Sesamol (3,4-methylenedioxyphenol) is a nature antioxidant and exhibited potential neuroprotective effects [ 60 ]. Wang et al [ 61 ] reported a 3D alkaline NMOF (Tb@Sr-MOF) for selectively sensing sesamol.…”

Section: Nmofs For Food Qualitymentioning

confidence: 99%

Nanoscale Metal-Organic Frameworks as Fluorescence Sensors for Food Safety

et al. 2021

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Food safety has attracted attention worldwide, and how to detect various kinds of hazardous substances in an efficient way has always been a focus. Metal-Organic Frameworks (MOFs) are a class of hybrid porous materials formed by organic ligand and metal ions. Nanoscale MOFs (NMOFs) exhibit great potential in serving as fluorescence sensors for food safety due to their superior properties including high accuracy, great stability, fast response, etc. In this review, we focus on the recent development of NMOFs sensing for food safety. Several typical methods of NMOFs synthesis are presented. NMOFs-based fluorescence sensors for contaminants and adulterants, such as antibiotics, food additives, ions and mycotoxin etc. are summarized, and the sensing mechanisms are also presented. We explore these challenges in detail and provide suggestions about how they may be surmounted. This review could help the exploration of NMOFs sensors in food related work.

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A water-stable terbium metal–organic framework as a highly sensitive fluorescent sensor for nitrite

Abstract: With solvothermal method, a novel water-stable Tb-based metal-organic framework (Tb-MOF), namely {[Tb(CA)(OA)0.5(H2O)2]·H2O}n (H2CA = chelidonic acid; H2OA = oxalic acid), was synthesized. Tb-MOF was studied for highly sensitive detection of...

Cited by 84 publications

References 65 publications

The Length of Substituents on Ligands Regulates the Structural Diversity of Coordination Polymers

The Length of Substituents on Ligands Regulates the Structural Diversity of Coordination Polymers

Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

Nanoscale Metal-Organic Frameworks as Fluorescence Sensors for Food Safety

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