A novel fluorometric and colorimetric dual-channel single-armed salamo-like chemosensor for the fast, reversible and simultaneous detection of Fe3+ and Cu2+ ions

Na, Li-Ping; Li, Mei; La, Ya‐Ting; Dong, Wen‐Kui

doi:10.1016/j.ica.2022.120932

Cited by 63 publications

(6 citation statements)

References 54 publications

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“…The BODIPY derivative 1 , like other chemosensors, has a low limit of detection for Cu 2+ (LOD = 0.63 µM) and Fe 3+ (LOD = 0.82 µM). However, many reported colorimetric sensors in the literature display a detection signal for these cations at a lower absorption wavelength (ranging from 292 to 570 nm) [ 12 , 19 , 45 , 46 , 47 , 48 , 49 , 50 ], whereas our compound has a detection signal around 700 nm. This feature is an advantage for the potential quantitative monitoring of Cu 2+ and Fe 3+ ions in environmental/biological samples since water and some biomolecules have a strong self-absorption ranging from 250 to 580 nm [ 51 , 52 ].…”

Section: Resultsmentioning

confidence: 79%

Colorimetric Chemosensor for Cu2+ and Fe3+ Based on a meso-Triphenylamine-BODIPY Derivative

Pinto,

Gonçalves,

Costa

et al. 2023

Sensors

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Optical chemosensors are a practical tool for the detection and quantification of important analytes in biological and environmental fields, such as Cu2+ and Fe3+. To the best of our knowledge, a BODIPY derivative capable of detecting Cu2+ and Fe3+ simultaneously through a colorimetric response has not yet been described in the literature. In this work, a meso-triphenylamine-BODIPY derivative is reported for the highly selective detection of Cu2+ and Fe3+. In the preliminary chemosensing study, this compound showed a significant color change from yellow to blue–green in the presence of Cu2+ and Fe3+. With only one equivalent of cation, a change in the absorption band of the compound and the appearance of a new band around 700 nm were observed. Furthermore, only 10 equivalents of Cu2+/Fe3+ were needed to reach the absorption plateau in the UV-visible titrations. Compound 1 showed excellent sensitivity toward Cu2+ and Fe3+ detection, with LODs of 0.63 µM and 1.06 µM, respectively. The binding constant calculation indicated a strong complexation between compound 1 and Cu2+/Fe3+ ions. The 1H and 19F NMR titrations showed that an increasing concentration of cations induced a broadening and shifting of the aromatic region peaks, as well as the disappearance of the original fluorine peaks of the BODIPY core, which suggests that the ligand–metal (1:2) interaction may occur through the triphenylamino group and the BODIPY core.

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Section: Resultsmentioning

confidence: 79%

Colorimetric Chemosensor for Cu2+ and Fe3+ Based on a meso-Triphenylamine-BODIPY Derivative

Pinto,

Gonçalves,

Costa

et al. 2023

Sensors

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“…1221 and 1224 cm À1 , respectively. 58 The Ar-O stretching frequencies were shifted by ca. 38 and 35 cm À1 , indicating that the M-O bonds were formed between the Co(II) and Ni(II) ions and oxygen atoms of phenolic groups.…”

Section: Ir and Uv-vis Absorption Spectramentioning

confidence: 99%

“…Next, mix the ligand solution and the salt solution into a 10-mL vial, and stir the reaction at 40 C for 10 min. [55][56][57][58] The color of the solution can be observed to be red-brown. Seal the vial with tin foil, let it sit and observe daily.…”

Section: Synthesis Of Complexes 1 Andmentioning

confidence: 99%

Experimental and computational studies of two binuclear Co(II) and Ni(II) bis(salamo)‐like complexes

Yan,

La,

et al. 2023

Applied Organom Chemis

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Acetate‐bridged binuclear Co(II) and Ni(II) complexes, [Co2(L)(μ‐OAc)(EtOH)] (1) and [Ni2(L)(μ‐OAc)(EtOH)] (2) were synthesized via the reaction of a new bis(salamo)‐like ligand with two different metal(II) acetates. X‐ray single crystal diffraction analyses showed that two metal(II) ions (Co or Ni) occupy two sets of N2O2 cavities, respectively. The acetate group bridges the two metals, and the ethanol oxygen atom participates in the coordination. Furthermore, UV–vis titration experiments clearly indicated that the complexation between H3L and M(II) ions leads to the 1:2 complexes [(L)M2]+ through a highly synergistic process. Bond valence sum (BVS) calculations exhibited that the Co(II) and Ni(II) ions are divalent. Secondly, the ligand H3L highest occupied molecular orbital–lowest unoccupied molecular orbital (HOMO‐LUMO) gap analysis and surface electrostatic potential were theoretically analyzed by theoretical calculation (density functional theory), and the reactivity of M(II) ions and the ligand in the complex formation process was demonstrated. Finally, the microscopic properties of the complexes were deeply understood through the calculation of the weak intramolecular interactions and the unstressed regions outside the complexes.

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“…In the experimental spectra, four major characteristic absorption bands were clearly displayed at ca. 300, 313, 343, and 357 nm for H 4 L. 54,55 The sharp absorption peak centered at 300 nm resulted from the intraligand n → π* charge-transfer transition of benzene rings and the intramolecular π → π* charge-transfer transitions, which were calculated at 301.48 nm (S 0 → S 19 , 81.35%). The sharp absorption peak centered at 313 nm in the UV−vis spectrum was due to C�N groups and the intramolecular π → π* charge transfer transitions, which were calculated at 312.56 nm (S 0 → S 10 , 63.70%).…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Coordination-Driven Salamo-Salen-Salamo-Type Multinuclear Transition Metal(II) Complexes: Synthesis, Structure, Luminescence, Transformation of Configuration, and Nuclearity Induced by the Acetylacetone Anion

Yan

et al. 2023

Inorg. Chem.

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A flexible polydentate Salamo-Salen-Salamo hybrid ligand H 4 L was designed and synthesized, which has rich pockets (salamo and salen pockets) so that it may have fascinating coordination patterns with transition metal(II) ions. Four multinuclear transition metal(II) complexes, novel butterflyshaped homotetranuclear 4), have been synthesized and characterized by single-crystal X-ray diffraction. The effects of different anions [OAc − and (O 2 C 5 H 7 ) 2− ] on the complexation behavior of H 4 L with transition metal(II) ions were studied by UV−vis spectrophotometry. The fluorescent properties of the four complexes were studied with zebrafish, which are expected to be a potential light-emitting material. Ultimately, interaction region indicator (IRI) valuations, Hirshfeld surface analyses, density functional theory (DFT & TD-DFT), electrostatic potential analyses (ESP), and simulations were carried out to further demonstrate the weak interactions and electronic properties of the free ligand and its four complexes.

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A novel fluorometric and colorimetric dual-channel single-armed salamo-like chemosensor for the fast, reversible and simultaneous detection of Fe3+ and Cu2+ ions

Cited by 63 publications

References 54 publications

Colorimetric Chemosensor for Cu2+ and Fe3+ Based on a meso-Triphenylamine-BODIPY Derivative

Colorimetric Chemosensor for Cu2+ and Fe3+ Based on a meso-Triphenylamine-BODIPY Derivative

Experimental and computational studies of two binuclear Co(II) and Ni(II) bis(salamo)‐like complexes

Coordination-Driven Salamo-Salen-Salamo-Type Multinuclear Transition Metal(II) Complexes: Synthesis, Structure, Luminescence, Transformation of Configuration, and Nuclearity Induced by the Acetylacetone Anion

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