Novel bis naphthalene-2-ol based colorimetric chemosensor for the detection of Fe2+ in physiological pH and its DFT calculation studies

Nagarajan, Rajendran; Kamaraj, Eswaran; Kim, Chong-Hyeak; Lee, Ki Hwan

doi:10.1016/j.talo.2022.100143

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…The supplementary file contains the details of material used for monomer and oligoester synthesis, tables as well as SI images of the results. [78,79]…”

Section: Experimental Section Materialsmentioning

confidence: 99%

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection

et al. 2023

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Azine‐based monomer and its three oligoesters were synthesized, characterized with IR, UV, GC‐MS, GPC, 1H NMR, 13C{1H} NMR, 31P NMR and applied to chemosensor applications. In the chemosensor study, fluorophores show selective and sensitive responses with Fe2+ ions in the DMF/H2O solution (1 : 1, pH: 7.4, fluorophore: 5 μM). The quenching of fluorescence intensity with the addition of Fe2+ ion gives the correlation coefficient (R2) value above 0.99286, exhibiting good binding stoichiometry nature of fluorophores with Fe2+ than the oligoesters. The high detecting capability of oligoesters is further ascertained by its higher LOD than the monomer (5.05×10−7). The binding constant values of fluorophores obtained from the Benesi‐Hildebrand plot show that the oligoesters have a higher binding ability (1.0012–1.0025 M−1) with Fe2+ ion than the monomer (1.0011 M−1). The conductivity nature of the oligoester gradually increased with the contact time of iodine. After 96hr of iodine doping, EMDAP exhibits higher conductivity (1.98×10−3 Scm−1) than the other oligoesters due to higher electron‐density nitrogen atoms in the structure. The EMDOP shows high dielectric constant value because of its π‐π interaction, loosely attached π electrons and high dipole moment values. All these experimental results are validated with the theoretical (DFT) approach by optimizing the structure of the fluorophore with B3LYP/6‐311++G(d,p) level basis set. The DFT approach also explains the mechanism of fluorescence quenching and the exact binding sites of fluorophores with Fe2+ ions.

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“…The supplementary file contains the details of material used for monomer and oligoester synthesis, tables as well as SI images of the results. [78,79]…”

Section: Experimental Section Materialsmentioning

confidence: 99%

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection

et al. 2023

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A review on pyrazole moieties as organic chemosensors in the detection of cations and anions

2024

Inorganica Chimica Acta

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Highly fluorescent N, B-doped carbon nanodots performing as optical turn-off probes discerning Fe(II)

Azami,

Valizadehderakhshan,

Tukur

et al. 2024

Journal of Photochemistry and Photobiology A: Chemistry

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Novel bis naphthalene-2-ol based colorimetric chemosensor for the detection of Fe2+ in physiological pH and its DFT calculation studies

Cited by 6 publications

References 40 publications

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection

A review on pyrazole moieties as organic chemosensors in the detection of cations and anions

Highly fluorescent N, B-doped carbon nanodots performing as optical turn-off probes discerning Fe(II)

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Novel bis naphthalene-2-ol based colorimetric chemosensor for the detection of Fe2+ in physiological pH and its DFT calculation studies

Cited by 6 publications

References 40 publications

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe2+ ion detection

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe2+ ion detection

A review on pyrazole moieties as organic chemosensors in the detection of cations and anions

Highly fluorescent N, B-doped carbon nanodots performing as optical turn-off probes discerning Fe(II)

Contact Info

Product

Resources

About

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection

Synthesis and structural characterization of azine based oligoesteric chemosensors for Fe²⁺ ion detection