A Sensitive Luminescent Acetylacetone Probe Based on Zn‐MOF with Six‐Fold Interpenetration

Kang, Xiaomin; Cheng, Rui-Rui; Xu, Hang; Wang, Wenmin; Zhao, Bin

doi:10.1002/chem.201702533

Cited by 93 publications

(48 citation statements)

References 77 publications

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“…Interestingly, the fluorescence quenching intensity of 1 × 10 −8 m (1.0 ppb) acac is 15 times that of instrument noise, indicating the LOD of the probe of acac is an ultra-sensitive value of 1.0 ppb (Figure 4b), which is the most sensitive acac chemosensor, to the best of our knowledge. In this contribution, the sensing is the instrument-free visual mode, the LOD is comparable to that of the advanced metal-organic frameworks (MOFs) or coordination complex sensors for acac (0.10, [35] 1.72, [36] 0.647, [37] 0.25 ppm, [33] and also much lower than our recent work (1.65 ppm) [11] (Table 2). The LOD is the lowest value for acac among the chemosensors, to the best of our knowledge.…”

Section: Sensing Acacmentioning

confidence: 67%

Synthesis of Two New Dinuclear Lanthanide Clusters and Visual Bifunctional Sensing Devices Based on the Eu Cluster

Jiang

Zheng

Liu

et al. 2021

Advanced Optical Materials

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The development of visual and multifunctional sensors, and further the fabrication of portable sensing devices is of great importance. Herein, two dinuclear lanthanide clusters are designed, and their accurate molecules are determined to be [Ln2(DFBA)6(dmp)2(H2O)2] (Ln3+ = Eu3+ (1‐Eu) or Tb3+ (1‐Tb), HDFBA = 3,4‐difluorobenzoic acid, dmp = 4,7‐dimethyl‐1,10‐phenanthroline), by single‐crystal X‐ray diffraction. Interestingly, 1‐Eu shows rapid detection of ferrous ions (Fe2+) and acetylacetone (acac), with the limit of detection (LOD) as low as 5.6 and 1.0 ppb, respectively. LOD of 5.6 ppb for Fe2+ is far lower than the standard of World Health Organization (0.3 ppm, SDWA) and Chinese rural water quality standards (0.5 ppm, GB25467‐2010) for drinking water. As far as it is known, 1‐Eu is the most sensitive chemosensor for the detection of acac; the sensing can be discriminated by the naked eyes under 365 nm UV light. Furthermore, portable sensing devices of agarose gel, test paper, and sprayed films on plastic tube, glass, coin, test paper, stone, leaf, carbon rod, and iron sheet surfaces, based on 1‐Eu solution, are fabricated by facile methods, with visual and quick detection of Fe2+ in water under various conditions, and show excellent recyclable sensing performance for acac vapor.

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Section: Sensing Acacmentioning

confidence: 67%

Synthesis of Two New Dinuclear Lanthanide Clusters and Visual Bifunctional Sensing Devices Based on the Eu Cluster

Jiang

Zheng

Liu

et al. 2021

Advanced Optical Materials

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“…As is well known, acetylacetone (acac) has been excessively employed as precursor or intermediate in organic synthesis, [18] modifier or chelating agent in sol‐gel mathod, [19] additive for gasoline and lubricants, [20] a nonaqueous redox‐flow battery [21] and an analytical extraction and separation reagent [22] . Nevertheless, as a flammable, volatile toxic chemical, acac can cause serious environmental issues and health problems such as dizziness, sicchasia, vomit, unconscious, etc [23] . Additionally, the United States Environmental Protection Agency (US EPA) has enumerated the effluent restrictions and standards for acac [24] .…”

Section: Introductionmentioning

confidence: 99%

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

Wang

Chang

et al. 2021

ChemistrySelect

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A novel metal‐organic framework (MOF) assembled by a semi‐rigid tricarboxylate, namely, 5‐(3,4‐dicarboxylphenoxy) nicotic acid (H3L) has been solvothermally synthesized: [Zn3(L)2(H2O)2] ⋅ 3H2O 1. Single‐crystal X‐ray diffraction analysis indicates that MOF 1 shows 2‐D layer with quadrangle channels along the a axis (ca. 7.0×8.3 Å2). The 2‐D layer self‐assembles into a final 3‐D supramolecular network via the interlayer π⋯π interactions. The photoluminescence investigations indicate that 1 can selectively and sensitively detect acetylacetone (acac) with high KSV value of 3.597×104 M−1 and low limit of detection (LOD) of 50.77 ppb. Further mechanism studies have shown that static photo‐competitive absorption, photoinduced electron transfer and H‐bonding interaction between chemosensor and the analyte may be the primary causes of the fluorescence quenching effect for acac.

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“…The result indicates that the 3D structure of 1 remains intact when adding EX. Therefore, the luminescence quenching of 1 shows no obvious connections to the collapse of the framework . In order to further explore the quenching mechanism of 1 in the presence of EX, the UV–vis absorption spectrum of the EX solution was measured.…”

Section: Resultsmentioning

confidence: 99%

Transition Metal–organic Coordination Polymers Containing 6‐(1H‐imidazol‐1‐yl)‐2(1H)‐Pyridinone: Synthesis, Structure and Fluorescent Sensing for Enoxacin

Zhou

et al. 2020

Applied Organom Chemis

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Three metal–organic coordination polymers, [M(2,6‐bip)2] (M = Zn (1), Ni (2)) and [Cu (tfbdc)(2,6‐bipH)2]•2H2O (3), were obtained with the similar solvothermal reaction systems of bivalent transition metal salt, 6‐(1H‐imidazol‐1‐yl)‐2(1H)‐pyridinone (2,6‐bipH) and 2,3,5,6‐tetrafluoroterephthalic acid (H2tfbdc). The three coordination polymers show different framework features, namely 3D (1), 2D (2) and 1D (3) structures, which are resulted from different single‐metal ion “node” and “linker” coordination modes. The [ZnO2N2] tetrahedron in 1 and [NiO2N4] octahedron in 2 as a node, is formed from Zn sp3 and Ni d2sp3 hybrid orbits, respectively, while the linker, 2,6‐bip, adopts the μ2:η1η1η0 in 1 and μ2:η1η1η1 in 2 coordination modes. PLATON calculation suggests that 1 possesses the micropore structure with a pore volume of 14.2%. In 3, the [CuO2N2] parallelogram as a node is derived from Cu dsp3 hybrid orbital, while the linkers of 2,6‐bipH and tfbdc adopt the μ1:η1η0η0 and μ1:η1η0/μ1:η1η0 coordination modes, respectively. Intriguingly, Zn(d10)‐centre coordination polymer 1 shows strong blue emission, which are derived from the π* → π transition of the 2,6‐bipH ligand. Moreover, 1 exhibits high stability and strong luminescence in both water and ethanol. At this point, the performance of 1 is studied as a chemical sensor for detecting fluoroquinolones drug. The results show that 1 can detect enoxacin in ethanol solution with a low detection limit of 3.61 × 10−5 M. The luminescent sensing mechanisms were investigated from experimental methods and theoretical calculation in detail as well.

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A Sensitive Luminescent Acetylacetone Probe Based on Zn‐MOF with Six‐Fold Interpenetration

Cited by 93 publications

References 77 publications

Synthesis of Two New Dinuclear Lanthanide Clusters and Visual Bifunctional Sensing Devices Based on the Eu Cluster

Synthesis of Two New Dinuclear Lanthanide Clusters and Visual Bifunctional Sensing Devices Based on the Eu Cluster

A New Fluorescence MOF for Highly Sensitive Detection of Acetylacetone

Transition Metal–organic Coordination Polymers Containing 6‐(1H‐imidazol‐1‐yl)‐2(1H)‐Pyridinone: Synthesis, Structure and Fluorescent Sensing for Enoxacin

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