Synthesis, structure and nitroaromatic sensing ability of a trinuclear zinc complex with a reduced Schiff base ligand: Assessment of the ability of the ligand to sense zinc ion

Karmakar, Mainak; Chattopadhyay, Shouvik

doi:10.1016/j.poly.2020.114639

Cited by 21 publications

(6 citation statements)

References 59 publications

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“…The strong fluorescence emission of many zinc complexes have been exploited for the detection of nitro-aromatic explosives by turn off fluorescence responses. 39,105–107 The present complexes may also be used as sensor to detect different nitroaromatic explosives.…”

Section: Resultsmentioning

confidence: 99%

The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates

Middya,

Frontera,

Chattopadhyay

2024

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates

Middya,

Frontera,

Chattopadhyay

2024

RSC Adv.

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“…The present compound is clearly more sensitive than most of the other Schiff base fluorescent sensors for the detection of Zn 2+ via turn-on fluorescence. For a rough comparison between present complex with other reported similar fluorescent sensors [35,[37][38][39]54,55], based on the detection limits of fluorescent sensors for Zn 2+ , see the results gathered in Table 1. The present compound is clearly more sensitive than most of the other Schiff base fluorescent sensors for the detection of Zn 2+ via turn-on fluorescence.…”

Section: Fluorescence Spectroscopic Studies Of L Toward Zn 2+mentioning

confidence: 89%

A Highly Selective Turn-On Fluorescent Probe for the Detection of Zinc

et al. 2021

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A novel turn-on fluorescence probe L has been designed that exhibits high selectivity and sensitivity with a detection limit of 9.53 × 10−8 mol/L for the quantification of Zn2+. 1H-NMR spectroscopy and single crystal X-ray diffraction analysis revealed the unsymmetrical nature of the structure of the Schiff base probe L. An emission titration experiment in the presence of different molar fractions of Zn2+ was used to perform a Job’s plot analysis. The results showed that the stoichiometric ratio of the complex formed by L and Zn2+ was 1:1. Moreover, the molecular structure of the mononuclear Cu complex reveals one ligand L coordinates with one Cu atom in the asymmetric unit. On adding CuCl2 to the ZnCl2/L system, a Cu-Zn complex was formed and a strong quenching behavior was observed, which inferred that the Cu2+ displaced Zn2+ to coordinate with the imine nitrogen atoms and hydroxyl oxygen atoms of probe L.

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“…The slope of the equation (K sv ) represents the quenching constant. The K sv value and the limited of detection (LOD) were calculated to be 3.08 × 10 4 M −1 and 24 ppm (Figure 2d), respectively, which reveal that MOF-1 has excellent sensitivity to recognize NBC in aqueous solution [38][39][40][41][42][43]. The solid-state luminescence spectra of MOF-1shows only one strong emission peak at 467 nm upon excitation at 380 nm, ascribed to intra ligand electron transitions (Figure 2b).…”

Section: Synthesis and Characterizationmentioning

confidence: 94%

A Chiral Metal—Organic Framework Prepared on Large-Scale for Sensitive and Enantioselective Fluorescence Recognition

Zhang

Bai

et al. 2023

Molecules

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MOF-based luminescent sensors have garnered considerable attention due to their potential in recognition and discrimination with high sensitivity, selectivity, and fast response in the last decades. Herein, this work describes the bulk preparation of a novel luminescent homochiral MOF, namely, [Cd(s-L)](NO3)2 (MOF-1), from an enantiopure pyridyl-functionalized ligand with rigid binaphthol skeleton under mild synthetic condition. Except for the features of porosity and crystallinity, the MOF-1 has also been characterized with water-stability, luminescence, and homochirality. Most important, the MOF-1 exhibits highly sensitive molecular recognition toward the4-nitrobenzoic acid (NBC) and moderate enantioselective detection of proline, arginine, and 1-phenylethanol.

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Synthesis, structure and nitroaromatic sensing ability of a trinuclear zinc complex with a reduced Schiff base ligand: Assessment of the ability of the ligand to sense zinc ion

Cited by 21 publications

References 59 publications

The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates

The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates

A Highly Selective Turn-On Fluorescent Probe for the Detection of Zinc

A Chiral Metal—Organic Framework Prepared on Large-Scale for Sensitive and Enantioselective Fluorescence Recognition

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