Three Novel Zn-Based Coordination Polymers: Synthesis, Structure, and Effective Detection of Al3+ and S2− Ions

Wang, Yuna; Zhang, Xiaofeng; Zhao, Yanru; Zhang, Suoshu; Li, Shifen; Lei, Jia; Du, Lin; Zhao, Qi‐Hua

doi:10.3390/molecules25020382

Cited by 11 publications

(7 citation statements)

References 42 publications

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“…Lang and co-workers also demonstrated turn-off sensing of oxoanions such as dichromate (Cr 2 O 7 2– ) and chromate (CrO 4 2– ) with LOD of 1.39 and 0.09 ppb, respectively, attributed to energy transfer process . Other reports on oxoanion detection are also investigated by few other 2D MOFs. − Several other 2D MOFs for dual-responsive cation and anion sensing have been reported in the literature as well. − …”

Section: Properties and Applicationsmentioning

confidence: 99%

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

et al. 2021

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Among the recent developments in metal-organic frameworks (MOFs), porous layered coordination polymers (CPs) have garnered attention due to their modular nature and tunable structures. These factors enable a number of properties and applications, including gas and guest sorption, storage and separation of gases and small molecules, catalysis, luminescence, sensing, magnetism, and energy storage and conversion. Among MOFs, two-dimensional (2D) compounds are also known as 2D CPs or 2D MOFs. Since the discovery of graphene in 2004, 2D materials have also been widely studied. Several 2D MOFs are suitable for exfoliation as ultrathin nanosheets similar to graphene and other 2D materials, making these layered structures useful and unique for various technological applications. Furthermore, these layered structures have fascinating topological networks and entanglements. This review provides an overview of different aspects of 2D MOF layered architectures such as topology, interpenetration, structural transformations, properties, and applications.

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Section: Properties and Applicationsmentioning

confidence: 99%

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

et al. 2021

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“…This band could be assigned to the 4,4′-bipy ligand because it emits in this region when excited at 323 nm. 92 Scheme 2. Single Crystals of 1/1C-4/4C with an Overview of the Proper Conditions To Achieve the Corresponding Structural Transformations Interestingly, compound 4 presents an additional band at 469 nm with a Stokes shift of 9928 cm −1 .…”

Section: Structural Description Of {[Zn 3 (μ-Aca) 6 (44′-bipy)]• 8chc...mentioning

confidence: 99%

Amide-Driven Secondary Building Unit Structural Transformations between Zn(II) Coordination Polymers

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Calvet

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et al. 2022

Crystal Growth & Design

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The behavior of coordination polymers (CPs) against external stimuli has witnessed remarkable attention, especially when the resulting CPs present reversible molecular arrays. Accordingly, CPs with these characteristics can lead to differences in their properties owing to these structural differences, being promising for their use as potential molecular switches with diverse applications. Herein, we have synthesized four Zn(II) CPs bearing α-acetamidocinnamic acid (HACA) and 4,4′-bipyridine (4,4′-bipy). The reaction between Zn(OAc) 2 •2H 2 O, HACA, and 4,4′-bipy yields {[Zn(ACA) 2 (4,4′-bipy)]•EtOH} n (1), which was used for the formation of three CPs through dissolution− recrystallization structural transformations (DRSTs, and {[Zn 3 (μ-ACA) 6 (4,4′-bipy)]• 0.75CHCl 3 } n (4). The study of the four crystal structures revealed that their secondary building units (SBUs) comprise monomeric, dimeric, and trimeric arrangements linked by 4,4′-bipy ligands. The fundamental role of the utilized solvent and/or temperature, as well as their effect on the orientation of the amide moieties driving the formation of the different SBUs is discussed. Furthermore, the reversibility and interconversion between the four CPs have been assayed. Finally, their solid-state photoluminescence has evinced that the effect of the amide moieties not only predetermine a different SBU but also lead to a different emission in 4 compared with 1−3.

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“…In the recent decade, a vast array of metal-organic framework materials capable of selectively detecting metal ions, small molecules, nitroaromatics, etc., were reported. However, most Al 3+ -sensitive MOFs demonstrate luminescence quenching response [ 27 , 28 , 29 ]. To the best of our knowledge, “turn-on” selective MOF sensors for Al 3+ are still a relatively rare occurrence [ 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

A Zn(II)-Based Sql Type 2D Coordination Polymer as a Highly Sensitive and Selective Turn-On Fluorescent Probe for Al3+

2021

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A luminescent coordination polymer with the overall formula {[Zn(tr2btd)(bpdc)]∙DMF}n (where tr2btd = 4,7-di(1H-1,2,4-triazol-1-yl)-2,1,3-benzothiadiazole; bpdc = 4,4′-biphenyldicarboxylate) was synthesized and characterized by single-crystal and powder X-ray diffraction, thermogravimetric, infrared spectroscopy, and elemental analyses. Luminescent properties of the obtained compound were studied in detail both in the solid state and as a suspension in N,N-dimethylacetamide (DMA). It was found that {[Zn(tr2btd)(bpdc)]∙DMF}n exhibits bright turquoise luminescence with excellent quantum efficiency and demonstrates turn-on fluorescence enhancement effect upon soaking in DMA Al3+ solution. Fluorescence titration experiments were carried out and the detection limit for Al3+ ions was calculated to be 120 nM, which is among the lowest reported values for similar materials. Moreover, compound demonstrated excellent selectivity and reusability, and the mechanism of the response is discussed. These results indicate that {[Zn(tr2btd)(bpdc)]∙DMF}n is a promising probe for sensitive fluorescent Al3+ detection.

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Three Novel Zn-Based Coordination Polymers: Synthesis, Structure, and Effective Detection of Al3+ and S2− Ions

Cited by 11 publications

References 42 publications

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

Amide-Driven Secondary Building Unit Structural Transformations between Zn(II) Coordination Polymers

A Zn(II)-Based Sql Type 2D Coordination Polymer as a Highly Sensitive and Selective Turn-On Fluorescent Probe for Al3+

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