Two AIE-active Schiff base fluorescent probes for highly selective recognition of Cu2+ ions

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 322, С. 124827 - 124827

Опубликована: Июль 14, 2024

Язык: Английский

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Constructing ESIPT-Capable α-Cyanostilbene Luminogens: Influence of Different Aromatic Substitutions Tethered to H-Acceptor (CH = N) on Photophysical Properties, Cu2+ and Fe3+ Detection

Journal of Fluorescence, Год журнала: 2024, Номер unknown

Опубликована: Сен. 10, 2024

Язык: Английский

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A helical salicylaldehyde Schiff base exhibiting aggregation-induced emission and selective recognition of Cu2+ ions

Tetrahedron, Год журнала: 2024, Номер unknown, С. 134288 - 134288

Опубликована: Окт. 1, 2024

Язык: Английский

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Two Aie-Active Schiff Base Fluorescent Probes for Highly Selective Recognition of Cu2+ Ions

Опубликована: Янв. 1, 2024

Two helical Schiff base compounds (H4TPA and H4TPE) containing a triphenylamine (TPA) or tetraphenylethylene (TPE) scaffold were successfully synthesized characterized. Both H4TPA H4TPE exhibited typical aggregation-induced emission characteristics in the mixed solvent of THF/H2O. The two also showed high selectivity sensitivity for recognition Cu2+ over other ions THF/HEPES (1:4, V/V, pH = 7.4), could be used as turn-off fluorescent probes Cu2+. stoichiometric ratios, association constants, detection limits, dynamic coordination modes with estimated via Job's plots, UV–vis spectra titration, fluorescence well 1H NMR titration. Besides, crystal structure complex obtained from interaction illustrated binding modes, which helped us understand mechanism H4TPE. Moreover, spiked recovery experiments carried out, indicated that can applied to real samples satisfactory recoveries.

Язык: Английский

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A Helical Salicylaldehyde Schiff Base Exhibiting Aie and Selective Recognition of Cu2+ Ions

Опубликована: Янв. 1, 2024

A racemic salicylaldehyde Schiff base (L) containing a pyridine-2,6-dicarboxamide scaffold was successfully synthesized and characterized. L exhibited typical aggregation-induced emission (AIE) characteristic in the mixed solvent of THF/H2O. The UV-Vis absorption spectra fluorescence showed high selectivity sensitivity for recognition Cu2+ over other ions solution THF/H2O (2:3, V/V), indicated can be used as turn-off fluorescent probe Cu2+. stoichiometric ratio, association constant, detection limit toward were estimated using Job's plot method, titration, titration. More importantly, Cu(II) complex from coordination interaction with characterized by X-ray crystal diffraction technique. structure well illustrated binding mode Cu2+, contributing to further understanding mechanism.

Язык: Английский

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AIE active hydroxycoumarin-anthranilic acid coupled enamine: Sequential detection of Cu2+/S2− ions and live cell imaging application

Microchemical Journal, Год журнала: 2024, Номер 207, С. 112080 - 112080

Опубликована: Ноя. 2, 2024

Язык: Английский

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Organic micro/nanospheres assembled from a [2 + 2] Schiff base macrocycle for efficient adsorption of zinc ions and dyes

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130375 - 130375

Опубликована: Ноя. 1, 2024

Язык: Английский

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