A new zinc-organic framework with 1D channel for constructing a ratiometric Al3+-selective sensor and four inputs INHIBIT logic gate

Li, Qi; Xu, Siji; He, Liangyu; Huang, Kun; Zhang, Xiangyu; Qin, Da‐Bin

doi:10.1016/j.saa.2022.121461

Cited by 11 publications

(6 citation statements)

References 51 publications

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“…No 2, 8, 9, 10, Table S5, Supporting Information) exhibited slightly higher and/or comparable LOD values than IITKGP-70; however, the K value was lower in every case than the developed framework IITKGP-70, which make them inefficient in terms of practical utility. 50,51,58,59 This analysis made IITKGP-70 a promising luminescent material over others for Al 3+ ion sensing in an aqueous medium. Needless to say, CP/MOFbased luminescent sensors exhibiting the Al 3+ turn-on phenomenon are still limited in the literature, whereas the number is significantly less when considering aqueous medium sensing for such (only 10 reports so far).…”

Section: ■ Results and Discussionmentioning

confidence: 96%

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

Mondal,

Sahoo,

Das

2023

Inorg. Chem.

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Nowadays, coordination polymers (CPs) are promising candidates as sensory materials for their high sensitivity, improved selectivity, fast responsive nature, as well as good recyclability. However, poor chemical stability often makes their practical usage limited. Herein, employing a mixed ligand approach, we constructed a chemically robust CP, {[Zn2L2(DPA)2]·3H2O} n (IITKGP-70, IITKGP stands for the Indian Institute of Technology Kharagpur), which exhibited excellent framework robustness not only in water but also over a broad range of pH solutions (pH = 3–11). The developed framework displayed high selectivity and sensitivity for the detection of trivalent Al3+ ions and toxic hexavalent Cr(VI)-oxo anions in an aqueous medium. The developed framework exhibited an aqueous medium Al3+ turn-on phenomenon with a limit of detection (LOD) value of 1.29 μM, whereas a turn-off effect was observed for toxic oxo-anions (Cr2O7 2– and CrO4 2–) having LOD values of 0.27 and 0.71 μM, respectively. Both turn-on and turn-off mechanisms are speculated via spectroscopic methods coupled with several ex situ studies. Such a multiresponsive nature (both turn-on and turn-off) for aqueous medium detection of targeted cations and anions simultaneously in a single platform coupled with high robustness, ease of scalability, recyclability, and fast-responsive nature makes IITKGP-70 highly fascinating as a sensory material for real-world applications.

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Section: ■ Results and Discussionmentioning

confidence: 96%

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

Mondal,

Sahoo,

Das

2023

Inorg. Chem.

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“…The results suggest that the interactions between the Fe 3+ and carboxyl oxygen and N atoms of the imidazole ring mainly contribute to the rigidity enhancement of the framework, thus leading to the fluorescence enhancement. , An absorption titration experiment for Fe 3+ shows a significant absorbance enhancement at 280–300 nm, further indicating the aforementioned interactions between MOF and Fe 3+ (Figure S20). For anions, the absorption spectra of CrO 7 2– and MnO 4 – have substantial overlaps with the excitation and emission spectra of Cu-MOF, which mainly leads to the competing absorption and energy resonance transfer processes between Cu-MOF and anions, resulting in fluorescence quenching (Figure S21).…”

Section: Resultsmentioning

confidence: 99%

“…31,53 An absorption titration experiment for Fe 3+ shows a significant absorbance enhancement at 280−300 nm, further indicating the aforementioned interactions between MOF and Fe 3+ (Figure S20). 33 For anions, the absorption spectra of CrO 7 2− and MnO 4…”

Section: Synthesis Of Himmentioning

confidence: 99%

A Novel 2D Copper–Organic Framework for Catalyzing CO₂ Chemical Fixation and Luminescence Sensing

Zhang,

Xu,

Huang

et al. 2023

Crystal Growth & Design

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Metal–organic frameworks (MOFs) show promising applications in catalysis and luminescent sensors due to their unique organic–inorganic porous structure. Herein, a novel copper MOF (Cu-MOF) is architected by the assembly of an imidazole and carboxylic acid functionalized flexible ligand (HIM) with copper ions under hydrothermal conditions. The Lewis acid and base built-in structure of HIM facilitate the architecting of a 2D porous 3-c network with {43} topology during the self-assembled coordination. the Cu-MOF can be used to catalyze the reaction of CO2 with epoxides to produce cyclic carbonates with 12 examples of substrate scope in 70–98% yields under mild conditions. The catalyst shows recycling ability and achieves the conversion of cyclic carbonate beyond 90% after 5 cycles. In addition, the Cu-MOF can be developed as a turn-on Fe3+-selective luminescent sensor with a detection limit of 0.53 μM. Moreover, the sensor can selectively recognize MnO4 – and Cr2O7 2– by emission quenching with detection limits of 0.57 and 0.23 μM, respectively. Besides, the sensor shows recycling ability in sensing and can be regenerated and reused 5 times. Therefore, the Cu-MOF exhibits versatility and offers promising applications in catalysis and luminescent sensors.

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“…In the past decades, metal–organic frameworks (MOFs) have successfully drawn a great deal of attention due to their advantageous features such as structure diversity and tunability, open metal sites, and large surface areas. − In particular, the easy predesign and postmodification of MOFs provide access for enhancing the interactions between the host and analytes to improve sensing performance, which allows them to be widely employed for sensor design. − In addition, MOF-based sensors always have good performances in recyclable usability. , Among these luminescence MOFs, Ln-MOFs show great potential for being sensing materials because of the good luminescent nature of lanthanide nodes and the tunable antenna effect from the ligand to the lanthanide center that can be regulated through the interaction with different analytes, thus facilizing the ratiometric emission. − It should be noted that luminescence efficiency is considered one of the important parameters for sensing materials. As we know, some luminescent materials show terrible emissions at their solid state or high concentration.…”

Section: Introductionmentioning

confidence: 99%

“…11−13 In addition, MOF-based sensors always have good performances in recyclable usability. 14,15 Among these luminescence MOFs, Ln-MOFs show great potential for being sensing materials because of the good luminescent nature of lanthanide nodes and the tunable antenna effect from the ligand to the lanthanide center that can be regulated through the interaction with different analytes, thus facilizing the ratiometric emission. 16−18 It should be noted that luminescence efficiency is considered one of the important parameters for sensing materials.…”

Section: ■ Introductionmentioning

confidence: 99%

Constructing an AIE Diphenylquinoxaline-Based Luminescent Europium-Organic Framework for Multiple Substance Sensing

Xiong

Zhang

et al. 2023

Crystal Growth & Design

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Luminescent lanthanide metal–organic frameworks (Ln-MOFs) draw great interest due to their promising luminescent properties and wide applications in sensor design. In this work, a europium-organic framework (DPQ-Eu) has been synthesized under solvothermal conditions based on the aggregation-induced emission (AIE) ligand 4, 4′-(quinoxaline-2, 3-diyl)dibenzoic acid (H2DPQ). Structural analyses show that DPQ-Eu adopts the monoclinic C2/c space group and forms a 3, 6-connected 2D porous network with a topological symbol of {42·6}2{44·69·82}. The formation of DPQ-Eu contributes an absolute quantum efficiency of 21.49% compared with that of the AIE ligand H2DPQ (0.02%) mainly due to the coordination-induced emission, providing DPQ-Eu with a great potential of being a luminescent sensor. Fluorescent investigations show that DPQ-Eu has a selective and sensitive response to Fe3+ and Hg2+ among various metal ions by ratiometric emission changes of the decreased emission at 415 nm and increased emission at 676 nm, with the detection limits of 25.99 and 39.70 nM and good reusability (5 times). The sensing behaviors probably can be ascribed to the promoted antenna effect from the ligand to the Eu(III) center by the coordination of Fe3+/Hg2+ to the quinoxaline moiety. For anion sensing, DPQ-Eu can respond to Cr2O7 2– by emission quenching at both 415 and 676 nm with a detection limit of 9.88 nM and 5 times reusability, probably associated with the energy competing absorption and reduced energy transfer from the ligand to the Eu(III) center. In addition, DPQ-Eu shows ratiometric emission changes to CN– by the emission enhancement and decrease at 415 and 676 nm, respectively, with a detection limit of 8.19 nM and five-run recycling tests, probably corresponding to the inhibition of energy transfer from the ligand to the Eu(III) center caused by the binding interactions between the CN– and Eu(III) nodes.

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A new zinc-organic framework with 1D channel for constructing a ratiometric Al3+-selective sensor and four inputs INHIBIT logic gate

Cited by 11 publications

References 51 publications

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

A Novel 2D Copper–Organic Framework for Catalyzing CO₂ Chemical Fixation and Luminescence Sensing

Constructing an AIE Diphenylquinoxaline-Based Luminescent Europium-Organic Framework for Multiple Substance Sensing

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A new zinc-organic framework with 1D channel for constructing a ratiometric Al3+-selective sensor and four inputs INHIBIT logic gate

Cited by 11 publications

References 51 publications

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

pH-Stable Zn(II) Coordination Polymer as a Multiresponsive Turn-On and Turn-Off Fluorescent Sensor for Aqueous Medium Detection of Al(III) and Cr(VI) Oxo-Anions

A Novel 2D Copper–Organic Framework for Catalyzing CO2 Chemical Fixation and Luminescence Sensing

Constructing an AIE Diphenylquinoxaline-Based Luminescent Europium-Organic Framework for Multiple Substance Sensing

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A Novel 2D Copper–Organic Framework for Catalyzing CO₂ Chemical Fixation and Luminescence Sensing