1
|
Ngounoue Kamga FA, Hrubaru MM, Enache O, Diacu E, Draghici C, Tecuceanu V, Ungureanu EM, Nkemone S, Ndifon PT. Ni(II)-Salophen-Comprehensive Analysis on Electrochemical and Spectral Characterization and Biological Studies. Molecules 2023; 28:5464. [PMID: 37513334 PMCID: PMC10384438 DOI: 10.3390/molecules28145464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/03/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
New aspects of the Ni(II)-salophen complex and salophen ligand precursor were found during deep electrochemical and optical characterization, as well as biological studies for new pharmacological applications. Physicochemical and spectroscopic methods (1H- and 13C-NMR, FT-IR and UV-Vis, electrospray ionization mass spectroscopy, thermogravimetric analysis, and molar conductance measurements) were also used to prove that the salophen ligand acts as a tetradentate and coordinates to the central metal through nitrogen and oxygen atoms. The electrochemical behavior of the free Schiff salophen ligand (H2L) and its Ni(II) complex (Ni(II)L) was deeply studied in tetrabutylammonium perchlorate solutions in acetonitrile via CV, DPV, and RDE. Blue films on the surfaces of the electrodes as a result of the electropolymerization processes were put in evidence and characterized via CV and DPV. (H2L) and Ni(II)L complexes were tested for their antimicrobial, antifungal, and antioxidant activity, showing good antimicrobial and antifungal activity against several bacteria and fungi.
Collapse
Affiliation(s)
- Francis Aurelien Ngounoue Kamga
- Coordination Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaounde 1, Yaounde P.O. Box 812, Cameroon
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Gheorghe Polizu 1-7, Sector 1, 011061 Bucharest, Romania
| | - Madalina-Marina Hrubaru
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Gheorghe Polizu 1-7, Sector 1, 011061 Bucharest, Romania
- "C. D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Sector 6, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Oana Enache
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Gheorghe Polizu 1-7, Sector 1, 011061 Bucharest, Romania
| | - Elena Diacu
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Gheorghe Polizu 1-7, Sector 1, 011061 Bucharest, Romania
| | - Constantin Draghici
- "C. D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Sector 6, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Victorita Tecuceanu
- "C. D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Sector 6, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Eleonora-Mihaela Ungureanu
- Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, Gheorghe Polizu 1-7, Sector 1, 011061 Bucharest, Romania
| | - Stephanie Nkemone
- Coordination Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaounde 1, Yaounde P.O. Box 812, Cameroon
| | - Peter T Ndifon
- Coordination Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaounde 1, Yaounde P.O. Box 812, Cameroon
| |
Collapse
|
2
|
Teixeira MFS, Olean-Oliveira A, Anastácio FC, David-Parra DN, Cardoso CX. Electrocatalytic Reduction of CO2 in Water by a Palladium-Containing Metallopolymer. NANOMATERIALS 2022; 12:nano12071193. [PMID: 35407311 PMCID: PMC9000595 DOI: 10.3390/nano12071193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 01/28/2023]
Abstract
The palladium–salen complex was immobilized by electropolymerization onto a Pt disc electrode and applied as an electrocatalyst for the reduction of CO2 in an aqueous solution. Linear sweep voltammetry measurements and rotating disk experiments were carried out to study the electrochemical reduction of carbon dioxide. The onset overpotential for carbon dioxide reduction was approximately −0.22 V vs. NHE on the poly-Pd(salen) modified electrode. In addition, by combining the electrochemical study with a kinetic study, the rate-determining step of the electrochemical CO2 reduction reaction (CO2RR) was found to be the radial reduction of carbon dioxide to the CO adsorbed on the metal.
Collapse
Affiliation(s)
- Marcos F. S. Teixeira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente CEP 19060-900, SP, Brazil; (A.O.-O.); (F.C.A.); (D.N.D.-P.)
- Correspondence:
| | - André Olean-Oliveira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente CEP 19060-900, SP, Brazil; (A.O.-O.); (F.C.A.); (D.N.D.-P.)
| | - Fernanda C. Anastácio
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente CEP 19060-900, SP, Brazil; (A.O.-O.); (F.C.A.); (D.N.D.-P.)
| | - Diego N. David-Parra
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente CEP 19060-900, SP, Brazil; (A.O.-O.); (F.C.A.); (D.N.D.-P.)
| | - Celso X. Cardoso
- Department of Physics, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente CEP 19060-900, SP, Brazil;
| |
Collapse
|
3
|
Karushev M, Smirnova E, Chepurnaya I. Nickel(II) Complex of N 4 Schiff Base Ligand as a Building Block for a Conducting Metallopolymer with Multiple Redox States. Molecules 2021; 26:molecules26092646. [PMID: 33946577 PMCID: PMC8124806 DOI: 10.3390/molecules26092646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 11/30/2022] Open
Abstract
Metal–ligand interactions in monomeric and polymeric transition metal complexes of Schiff base ligands largely define their functional properties and perspective applications. In this study, redox behavior of a nickel(II) N4-anilinosalen complex, [NiAmben] (where H2Amben = N,N′-bis(o-aminobenzylidene)ethylenediamine) was studied by cyclic voltammetry in solvents of different Lewis basicity. A poly-[NiAmben] film electrochemically synthesized from a 1,2-dichloroethane-based electrolyte was investigated by a combination of cyclic voltammetry, electrochemical quartz crystal microbalance, in situ UV-Vis spectroelectrochemistry, and in situ conductance measurements between −0.9 and 1.3 V vs. Ag/Ag+. The polymer displayed multistep redox processes involving reversible transfer of the total of ca. 1.6 electrons per repeat unit, electrical conductivity over a wide potential range, and multiple color changes in correlation with electrochemical processes. Performance advantages of poly-[NiAmben] over its nickel(II) N2O2 Schiff base analogue were identified and related to the increased number of accessible redox states in the polymer due to the higher extent of electronic communication between metal ions and ligand segments in the nickel(II) N4-anilinosalen system. The obtained results suggest that electrosynthesized poly-[NiAmben] films may be viable candidates for energy storage and saving applications.
Collapse
|
4
|
Short communication: Molecular architecture based on palladium-salen complex/graphene for low potential water oxidation. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
5
|
Chepurnaya IA, Karushev MP, Alekseeva EV, Lukyanov DA, Levin OV. Redox-conducting polymers based on metal-salen complexes for energy storage applications. PURE APPL CHEM 2020. [DOI: 10.1515/pac-2019-1218] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Metal-salen polymers are electrochemically active metallopolymers functionalized with multiple redox centers, with a potential for high performance in various fields such as heterogeneous catalysis, chemical sensors, energy conversion, saving, and storage. In light of the growing world demand for the development of superior energy storage systems, the prospects of employing these polymers for advancing the performance of supercapacitors and lithium-ion batteries are particularly interesting. This article provides a general overview of the results of investigating key structure-property relationships of metal-salen polymers and using them to design polymer-modified electrodes with improved energy storage characteristics. The results of independent and collaborative studies conducted by the members of two research groups currently affiliated to the Saint–Petersburg State University and the Ioffe Institute, respectively, along with the related data from other studies are presented in this review.
Collapse
Affiliation(s)
| | | | - Elena V. Alekseeva
- Institute of Chemistry, Saint Petersburg State University , Saint Petersburg , Russian Federation
| | - Daniil A. Lukyanov
- Institute of Chemistry, Saint Petersburg State University , Saint Petersburg , Russian Federation
| | - Oleg V. Levin
- Institute of Chemistry, Saint Petersburg State University , Saint Petersburg , Russian Federation
| |
Collapse
|
6
|
Zhang YC, Chilukuri B, Hanson TB, Heiden ZM, Lee DY. Connecting Solution-Phase to Single-Molecule Properties of Ni(Salophen). J Phys Chem Lett 2019; 10:3525-3530. [PMID: 31188610 DOI: 10.1021/acs.jpclett.9b01381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We present a strong correlation of the Ni(salophen) structure and properties measured in single-molecule vs bulk quantities and in ultra high vacuum vs solution phase. Under a scanning tunneling microscope (STM), Ni(salophen) forms a self-assembled monolayer (SAM) on Au(111) at 23 °C with molecular structure identical to that of the X-ray crystallographic measurement. The HOMO and LUMO levels are determined using elastic tunneling spectroscopy at the single-molecule level with confirmation by monolayer-quantity ultraviolet photoelectron spectroscopy (UPS) and by cyclic voltammetry (CV) measurements. The STM-determined HOMO-LUMO gap of 3.28 eV and (HOMO-1)-HOMO gap of 0.36 eV form a new foundation for the selection of hybrid functionals with a simple basis set to be effective in accurately calculating single-molecule Ni(salophen) frontier MO levels. Our results suggest that microscopy-based experiments on a surface, along with free-molecule gas-phase calculations, can provide useful insights into the physical properties of metal(salen) complexes, especially when such direct measurements are not available in solution.
Collapse
Affiliation(s)
- Yi C Zhang
- Department of Chemistry and Materials Science & Engineering Program , Washington State University , Pullman , Washington 99164 , United States
| | - Bhaskar Chilukuri
- Department of Chemistry , Washington State University , Pullman , Washington 99164 , United States
| | - Tanner B Hanson
- Department of Chemistry , Washington State University , Pullman , Washington 99164 , United States
| | - Zachariah M Heiden
- Department of Chemistry , Washington State University , Pullman , Washington 99164 , United States
| | - David Y Lee
- Department of Chemistry and Materials Science & Engineering Program , Washington State University , Pullman , Washington 99164 , United States
| |
Collapse
|
7
|
Pereira CF, Olean-Oliveira A, David-Parra DN, Teixeira MF. A chemiresistor sensor based on a cobalt(salen) metallopolymer for dissolved molecular oxygen. Talanta 2018; 190:119-125. [DOI: 10.1016/j.talanta.2018.07.080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/22/2018] [Accepted: 07/24/2018] [Indexed: 11/17/2022]
|
8
|
Olean-Oliveira A, Pereira CF, David-Parra DN, Teixeira MFS. Electrocatalytic Study of the Thin Metallopolymer Film of [2,2′-{1,2-Ethanediylbis[Nitrilo(1E)-1-Ethyl-1-Ylidene]}Diphenolate]-Nickel(II) for Ethanol Electrooxidation. ChemElectroChem 2018. [DOI: 10.1002/celc.201800532] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- André Olean-Oliveira
- Department of Chemistry and Biochemistry; School of Science and Technology; Sao Paulo State University (UNESP); Rua Roberto Simonsen, 305 CEP 19060-900 - Presidente Prudente, SP Brazil
| | - Camila F. Pereira
- Department of Chemistry and Biochemistry; School of Science and Technology; Sao Paulo State University (UNESP); Rua Roberto Simonsen, 305 CEP 19060-900 - Presidente Prudente, SP Brazil
| | - Diego N. David-Parra
- Department of Chemistry and Biochemistry; School of Science and Technology; Sao Paulo State University (UNESP); Rua Roberto Simonsen, 305 CEP 19060-900 - Presidente Prudente, SP Brazil
| | - Marcos F. S. Teixeira
- Department of Chemistry and Biochemistry; School of Science and Technology; Sao Paulo State University (UNESP); Rua Roberto Simonsen, 305 CEP 19060-900 - Presidente Prudente, SP Brazil
| |
Collapse
|