Synthesis, crystal structure, luminescent properties and antibacterial activities of zinc complexes with bipyridyl and salicylate ligands

Chooset, S.; Kantacha, Anob; Chainok, Kittipong; Wongnawa, Sumpun

doi:10.1016/j.ica.2017.11.053

Cited by 15 publications

(6 citation statements)

References 39 publications

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“…1 ) evidenced the interaction between deprotonated carboxylate groups of salicylate ligands and metal ions. Such interaction is assured after distinctive intensity drop of the corresponding C=O peak centered at 1657 cm –1 and a slight shift to 1654 cm –1 30 . The deprotonation of the carboxylate groups is very critical to boost such coordination interaction.…”

Section: Resultsmentioning

confidence: 97%

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Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres

et al. 2021

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Solar conversion of CO2 into energy-rich products is one of the sustainable solutions to lessen the global energy shortage and environmental crisis. Pitifully, it is still challenging to attain reliable and affordable CO2 conversion. Herein, we demonstrate a facile one-pot approach to design core-triple shell Mn, C-codoped ZnO hollow spheres as efficient photocatalysts for CO2 reduction. The Mn ions, with switchable valence states, function as “ionized cocatalyst” to promote the CO2 adsorption and light harvesting of the system. Besides, they can capture photogenerated electrons from the conduction band of ZnO and provide the electrons for CO2 reduction. This process is continuous due to the switchable valence states of Mn ions. Benefiting from such unique features, the prepared photocatalysts demonstrated fairly good CO2 conversion performance. This work is endeavoured to shed light on the role of ionized cocatalyst towards sustainable energy production.

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Section: Resultsmentioning

confidence: 97%

“…The carboxylate groups of salicylic acid play a significant role that they can coordinate to metal ions, enabling a delicate control over the composition. Moreover, this method is universal to most of the transition metals because non-selectivity is witnessed for salicylic acid 30 .…”

Section: Resultsmentioning

confidence: 99%

Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres

et al. 2021

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“…Moreover, this method is universal to most of the transition metals because non-selectivity is witnessed for salicylic acid. 26 Fourier-transform infrared spectroscopy (FTIR) spectra of the Zn, Mn-CPSs (Supplementary Information Figure S1) evidenced the interaction between deprotonated carboxylate groups of salicylate ligands and metal ions. Such interaction is assured after distinctive intensity drop of the corresponding C = O peak centered at 1657 cm -1 and a slight shift to 1654 cm -1 .…”

Section: Resultsmentioning

confidence: 99%

“…Such interaction is assured after distinctive intensity drop of the corresponding C = O peak centered at 1657 cm -1 and a slight shift to 1654 cm -1 . 26 The deprotonation of the carboxylate groups is very critical to boost such coordination interaction. As a strong conjugated base, acetate anions can deprotonate the carboxylate groups of salicylic acid and thus enable reliable coordination between salicylate ligand and metal cations.…”

Section: Resultsmentioning

confidence: 99%

Sustained CO2-photoreduction activity and high selectivity over C, Mn-codoped ZnO core-triple shell hollow spheres

Sayed

Kuang

Low

et al. 2020

Preprint

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Solar conversion of CO2 into energy-rich products is one of the sustainable solutions to lessen the global energy shortage and environmental crisis. Pitifully, it is still challenging to attain reliable and affordable CO2 conversion. Herein, we demonstrate a facile one-pot approach to design core-triple shell Mn, C-codoped ZnO hollow spheres as efficient photocatalysts for CO2 reduction. The Mn ions, with switchable valance states, function as “ionized cocatalyst” to promote the CO2 adsorption and light harvesting of the system. Besides, they can capture photogenerated electrons from the conduction band of ZnO and provide the electrons for CO2 reduction. This process is continuous due to the switchable valence states of Mn ions. Benefiting from such unique features, the prepared photocatalysts demonstrated remarkably selective CO2 conversion into CH3OH (yielding ten times higher than that of commercial ZnO). This work is endeavoured to shed light on the role of ionized cocatalyst towards sustainable energy production.

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“…The antibacterial properties of zinc coumarin-3carboxylate (100-1000 μg/mL) [26], zinc 5-iodo and 5-bromosalicylate (0.001-200 mmol.dm -3 ) [27], zinc 2-bromobenzoate (0.01-2.0 mmol.dm -3 ) [28] and zinc salicylates (1 mg/ mL) [29] have been investigated. Although the main ligands has antibacterial activity, it has been reported that the antibacterial effect increases in some complexes (especially with pyridine derivatives).…”

Section: Percent Inhibition (%) 100 Cvcc Cvtc Cvcc − = ×mentioning

confidence: 99%

Investigation of Antibacterial and Cytotoxic Properties of Mix Ligand Complex of Zinc 2-Fluorobenzoate with Nicotinamide

Akbaba

Öztürk

2019

Hittite J. Sci. Eng.

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T he purpose of crystal engineering is to explore new materials with striking properties that can be used in a variety of implementation areas. Metal complexes with an important place in crystal engineering consist of anions or molecules called ligands, which bind to a metal cation and metal atom at the center of symmetry. Metal complexes have been the subject of interest with the diversity of their structures for many years. The structures of metal complexes were determined to be influenced by the biological and physical properties of metal cations, ligands and intermolecular interactions [1][2][3][4]. Medical inorganic chemistry, which has an important place in materials science, is a multidisciplinary field consisting of chemistry, pharmacology, toxicology, and biochemistry. Medical chemists focus on the design and synthesis of new metal-based molecules with greater enhanced biological activity, better selectivity, low toxicity and multiple roles of mechanical effects to overcome the Article History:

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Synthesis, crystal structure, luminescent properties and antibacterial activities of zinc complexes with bipyridyl and salicylate ligands

Cited by 15 publications

References 39 publications

Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres

Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres

Sustained CO2-photoreduction activity and high selectivity over C, Mn-codoped ZnO core-triple shell hollow spheres

Investigation of Antibacterial and Cytotoxic Properties of Mix Ligand Complex of Zinc 2-Fluorobenzoate with Nicotinamide

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