Copper(II) Schiff Base Complex with Electrocatalytic Activity Towards the Oxygen Reduction Reaction and Its Catalase Activity

Dionízio, Thaís Petizero; Santos, Aline Cantuares dos; Silva, Felipe Pereira da; Moura, Fagner da Silva; D’Elia, Eliane; Garrido, Francisco M. S.; Medeiros, Marta Eloísa; Casellato, Annelise

doi:10.1007/s12678-020-00636-5

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…1 H NMR (400 MHz, DMSO-d6, 25°C) (Fig. S1): δ/ppm:7,28-7,30 (d, J = 5.5 Hz, 2 H, 2 H'); 7.65-7,49 (m, 5 H, 5 H, 1 H, 1 H' 8 H); 12,65 (s, 3 H); 8,63 (s, 4 H); 6.95-6.93 (d, J = 9 Hz, 6 H, 6 H'); 3,98 (s, 7 H, 7 H'). ΛM = 4.10 ohm − 1 cm 2 mol − 1 (non-electrolyte in methanol).…”

Section: Synthesis Of Ligand 2-[4-(dimetilamino)fenil]metileno]hidraz...mentioning

confidence: 99%

“…Due to these disadvantages, there is a growing interest in researching alternatives to platinum catalysts for direct ethanol fuel cells (DEFCs). In this context, coordination compounds, transition metals, and other materials have been explored as potential substitutes, aiming to overcome the limitations associated with platinum use in DEFCs and make fuel cells more accessible, durable, and sustainable [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Copper complex containing N-acylhydrazone as catalyst in ethanol electro-oxidation reaction

Silva,

Cruz,

Silva

et al. 2023

Preprint

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This study discusses the synthesis and characterization of a novel copper complex, whose molecular structure was previously determined through various analytical techniques such as FTIR, elemental analysis (CHN), and 1H NMR. Further analysis involving geometry, vibrational frequencies, and electron excitations was conducted using density functional theory (BP86/Def2-TZVPP/D3BJ method). The Cu(MFMH)2Cl2 complex exhibits three absorption bands at 420 nm, associated with π → π* transitions (between ligands); at 477 nm, linked to σ* → π transitions (involving donation from the metallic center to ligands) and π → σ* transitions (involving retro-donation from ligands to the metallic center); and at 514 nm, associated with σ* → π transitions (involving donation from the metallic center to ligands). Additionally, the use of Cu(MFMH)2Cl2 as a catalyst for the ethanol oxidation reaction in acidic conditions was investigated through cyclic voltammetry and chronoamperometry. The results show that the peak-current density for the Cu-CPE 30% (p/p) catalyst (complex/graphite) was higher compared to other CPEs.

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Section: Synthesis Of Ligand 2-[4-(dimetilamino)fenil]metileno]hidraz...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Copper complex containing N-acylhydrazone as catalyst in ethanol electro-oxidation reaction

Silva,

Cruz,

Silva

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…22 Moreover, Ni( ii ) and Cu( ii )–SBs are efficient for electrocatalytic HER in acetonitrile. 14 Molybdenum–SBs 23 and copper( ii )–SBs 24 are used for the HER in organic acid solution and the ORR in KCl solution. Therefore, M–SBs have many applications in electrochemistry, especially for trifunctional electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Trifunctional electrocatalysts of ternary iron–copper–molybdenum Schiff base complexes applied to Zn–air battery and alkaline water splitting

Chiang

Chen

2023

Catal. Sci. Technol.

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Synthesis, characterization, crystal structure, thermal and redox behaviour and antiproliferative studies of morpholine‐based two copper(II) compounds

Mandal

Nandi

Acharya

et al. 2023

Applied Organom Chemis

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Two novel copper(II) complexes, [Cu(L)(Cl) 2 ](H 2 O) (1) and [Cu(L)(N 3 ) 2 ] (2), have been synthesized from a morpholine-based N,N,N donor tridentate Schiff base ligand, (E)-N-(2-morpholinoethyl)-1-phenyl-1-(pyridin-2-yl)methanimine (L). Ligand (L) and its stabilized complexes, 1 and 2, have been comprehensively characterized by different physical and spectroscopic techniques. Solidstate single-crystal X-ray structures of both 1 and 2 have been determined. Powder X-ray diffraction studies on the bulk samples of 1 and 2 have been executed to demonstrate that the synthesized bulk materials retain their solidphase purity as that exists in the single crystals. Cyclic voltammetric experiments have been done to demonstrate the redox behaviour of 1 and 2. UV-vis spectra of the copper(II) complexes with variation in time were accrued to probe that both 1 and 2 retain their stability in solution. Thermogravimetric analysis (TGA) has been performed to collate the thermal stability of 1 along with its possible thermal degradation behaviour. Room temperature magnetic moments of 1 and 2 have been determined. Cytotoxic activity of 1 and 2 has been screened against non-small human lung cancer cell, A549.

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Copper(II) Schiff Base Complex with Electrocatalytic Activity Towards the Oxygen Reduction Reaction and Its Catalase Activity

Cited by 6 publications

References 37 publications

Copper complex containing N-acylhydrazone as catalyst in ethanol electro-oxidation reaction

Copper complex containing N-acylhydrazone as catalyst in ethanol electro-oxidation reaction

Trifunctional electrocatalysts of ternary iron–copper–molybdenum Schiff base complexes applied to Zn–air battery and alkaline water splitting

Synthesis, characterization, crystal structure, thermal and redox behaviour and antiproliferative studies of morpholine‐based two copper(II) compounds

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