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Sopbué Fondjo E, Songmi Feuze S, Tamokou JDD, Tsopmo A, Doungmo G, Friedrich Wilhelm PS, Feugap Tsamo DL, Lenta Ndjakou B, Kuiate JR. Synthesis, characterization, and antibacterial activity studies of two Co(II) complexes with 2-[(E)-(3-acetyl-4-hydroxyphenyl)diazenyl]-4-(2-hydroxyphenyl)thiophene-3-carboxylic acid as a ligand. BMC Chem 2024; 18:75. [PMID: 38627757 PMCID: PMC11022391 DOI: 10.1186/s13065-024-01179-2] [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: 08/10/2023] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
Two new Cobalt(II) complexes 12 and 13 have been synthesized from 2-[(E)-(3-acetyl-4-hydroxyphenyl)diazenyl]-4-(2-hydroxyphenyl)thiophene-3-carboxylic acid (11) as a novel ligand. These three new compounds were characterized on the basis of their powder X-Ray Diffraction, UV-Vis, IR, NMR, elemental analysis and MS spectral data. DFT/B3LYP mode of calculations were carried out to determine some theorical parameters of the molecular structure of the ligand. The purity of the azoic ligand and the metal complexes were ascertained by TLC and melting points. The analysis of the IR spectra of the polyfunctionalized azo compound 11 and its metal complexes 12 and 13, reveals that the coordination patterns of the ligand are hexadentate and tetradentate respectively. Based on the UV-Vis electronic spectral data and relevant literature reports, the ligand and derived complexes were assigned the E (trans) isomer form. Likewise, octahedral and square-planar geometries were respectively assigned to the cobalt(II) complexes. The broth microdilution method was used for antibacterial assays through the determination of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The ligand 11 displayed moderate antibacterial activity (MIC = 32-128 μg/mL) against Staphylococcus aureus ATCC25923, Escherichia coli ATCC25922, Pseudomonas aeruginosa and Klebsiella pneumoniae 22. The octahedral cobalt(II) complex 12 showed moderate activity against Pseudomonas aeruginosa (MIC = 128 μg/mL) and Klebsiella pneumoniae 22 (MIC = 64 μg/mL) and none against Staphylococcus aureus ATCC25923 and Escherichia coli ATCC25922, whereas the square-planar complex 13 displayed moderate activity only on Klebsiella pneumoniae 22 (MIC = 64 μg/mL).
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Affiliation(s)
- Emmanuel Sopbué Fondjo
- Laboratory of Applied Synthetic Organic Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Republic of Cameroon.
| | - Sorelle Songmi Feuze
- Laboratory of Applied Synthetic Organic Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Republic of Cameroon
| | - Jean-de-Dieu Tamokou
- Research Unit of Microbiology and Antimicrobial Substances, Department of Biochemistry, Faculty of Science, University of Dschang, PO Box 067, Dschang, Republic of Cameroon
| | - Apollinaire Tsopmo
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, K1S 5B6, Canada
| | - Giscard Doungmo
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str. 2, 24118, Kiel, Germany
| | - Peter Simon Friedrich Wilhelm
- Polymer Chemistry Laboratory, Faculty of Live Sciences, Rhine-Waal University of Applied Sciences, Campus Kleve, Marie-Curie Strasse 1, 47533, Kleve, Germany
| | - Donald Léonel Feugap Tsamo
- Laboratory of Applied Synthetic Organic Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Republic of Cameroon
| | - Bruno Lenta Ndjakou
- Higher Teacher's Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon
| | - Jules Roger Kuiate
- Research Unit of Microbiology and Antimicrobial Substances, Department of Biochemistry, Faculty of Science, University of Dschang, PO Box 067, Dschang, Republic of Cameroon
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Abd El-Lateef HM, Khalaf MM, Amer AA, Kandeel M, Abdelhamid AA, Abdou A. Synthesis, Characterization, Antimicrobial, Density Functional Theory, and Molecular Docking Studies of Novel Mn(II), Fe(III), and Cr(III) Complexes Incorporating 4-(2-Hydroxyphenyl azo)-1-naphthol (Az). ACS OMEGA 2023; 8:25877-25891. [PMID: 37521661 PMCID: PMC10373178 DOI: 10.1021/acsomega.3c01413] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023]
Abstract
This work synthesized three new CrAz2, MnAz2, and FeAz2 complexes and investigated them using IR, mass, UV spectroscopy, elemental analysis, conductivity and magnetic tests, and thermogravimetric analysis. The azo-ligand, 4-(2-hydroxyphenylAzo)-1-naphthol (Az), couples with metal ions via its nitrogen (in -N=N- bonds) and oxygen (in hydroxyl group) atoms, according to the IR spectra of these complexes. Through thermal examination (TG/TGA), the number and location of water in the complexes were also determined. Density functional theory (DFT) theory is applied to ameliorate the structures of the ligand (Az) and metal complexes and analyze the quantum chemical characteristics of these complexes. The antifungal and antibacterial activity of the ligand and its complexes opposed to several hazardous bacteria and fungi was investigated in vitro. Metal complexes were discovered to have a higher inhibitory impact on some organisms than the free ligand. The MnAz2 complex exhibited the best activity among the studied materials, whereas the CrAz2 complex had the lowest. The compounds' binding affinity to the E. coli (PDB ID: 1hnj) structure was predicted using molecular docking. Binding energies were calculated by analyzing protein-substrate interactions. These encouraging findings imply that these chemicals may have physiological effects and may be valuable for a variety of medical uses in the future.
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Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Amer A. Amer
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Mahmoud Kandeel
- Department
of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, 31982 Al-Ahsa, Saudi Arabia
- Department
of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Antar A. Abdelhamid
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Aly Abdou
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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Designing covalent organic frameworks with Co-O 4 atomic sites for efficient CO 2 photoreduction. Nat Commun 2023; 14:1147. [PMID: 36854683 PMCID: PMC9975230 DOI: 10.1038/s41467-023-36779-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 02/14/2023] [Indexed: 03/02/2023] Open
Abstract
Cobalt coordinated covalent organic frameworks have attracted increasing interest in the field of CO2 photoreduction to CO, owing to their high electron affinity and predesigned structures. However, achieving high conversion efficiency is challenging since most Co related coordination environments facilitate fast recombination of photogenerated electron-hole pairs. Here, we design two kinds of Co-COF catalysts with oxygen coordinated Co atoms and find that after tuning of coordination environment, the reported Co framework catalyst with Co-O4 sites exhibits a high CO production rate of 18000 µmol g-1 h-1 with selectivity as high as 95.7% under visible light irradiation. From in/ex-situ spectral characterizations and theoretical calculations, it is revealed that the predesigned Co-O4 sites significantly facilitate the carrier migration in framework matrixes and inhibit the recombination of photogenerated electron-hole pairs in the photocatalytic process. This work opens a way for the design of high-performance catalysts for CO2 photoreduction.
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Abdallah AM, Zaki NG, Mahmoud WH, El Kerdawy AM, Mohamed GG. Synthesis, structural characterization, density functional theory calculations, and antimicrobial, anticancer, and antimetastatic properties of nanosized heteroleptic complexes of cocaine/TMEDA with d‐block metal ions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Abanoub Mosaad Abdallah
- Narcotic Research Department National Center for Social and Criminological Research (NCSCR) Giza Egypt
| | - Nadia G. Zaki
- Narcotic Research Department National Center for Social and Criminological Research (NCSCR) Giza Egypt
| | - Walaa H. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Ahmed M. El Kerdawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy Cairo University Cairo Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy New Giza University Cairo Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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Fadl A, Sadeek S, Magdy L, Abdou M, El-Shiwiniy W. Multi-functional epoxy composite coating incorporating mixed Cu(II) and Zr(IV) complexes of metformin and 2,2\-bipyridine as intensive network cross-linkers exhibiting anti-corrosion, self-healing and chemical-resistance performances for steel petroleum platforms. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Deghadi RG, Abbas AA, Mohamed GG. Theoretical and experimental investigations of new bis (amino triazole) schiff base ligand: Preparation of its UO
2
(II), Er (III), and La (III) complexes, studying of their antibacterial, anticancer, and molecular docking. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6292] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Reem G. Deghadi
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
| | - Ashraf A. Abbas
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
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Mahmoud NF, Abbas AA, Mohamed GG. Synthesis, characterization, antimicrobial, and MOE evaluation of nano 1,2,4‐triazole‐based Schiff base ligand with some d‐block metal ions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6219] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nessma F. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Ashraf A. Abbas
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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Synthesis, Characterization and Biological Activity of Transition Metals Schiff Base Complexes Derived from 4,6-Diacetylresorcinol and 1,8-Naphthalenediamine. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01867-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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