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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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Rosário JDS, Moreira FH, Rosa LHF, Guerra W, Silva-Caldeira PP. Biological Activities of Bismuth Compounds: An Overview of the New Findings and the Old Challenges Not Yet Overcome. Molecules 2023; 28:5921. [PMID: 37570891 PMCID: PMC10421188 DOI: 10.3390/molecules28155921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023] Open
Abstract
Bismuth-based drugs have been used primarily to treat ulcers caused by Helicobacter pylori and other gastrointestinal ailments. Combined with antibiotics, these drugs also possess synergistic activity, making them ideal for multiple therapy regimens and overcoming bacterial resistance. Compounds based on bismuth have a low cost, are safe for human use, and some of them are also effective against tumoral cells, leishmaniasis, fungi, and viruses. However, these compounds have limited bioavailability in physiological environments. As a result, there is a growing interest in developing new bismuth compounds and approaches to overcome this challenge. Considering the beneficial properties of bismuth and the importance of discovering new drugs, this review focused on the last decade's updates involving bismuth compounds, especially those with potent activity and low toxicity, desirable characteristics for developing new drugs. In addition, bismuth-based compounds with dual activity were also highlighted, as well as their modes of action and structure-activity relationship, among other relevant discoveries. In this way, we hope this review provides a fertile ground for rationalizing new bismuth-based drugs.
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Affiliation(s)
- Jânia dos Santos Rosário
- Department of Chemistry, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte 30421-169, MG, Brazil
| | - Fábio Henrique Moreira
- Department of Chemistry, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte 30421-169, MG, Brazil
| | - Lara Hewilin Fernandes Rosa
- Institute of Chemistry, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia 38400-142, MG, Brazil
| | - Wendell Guerra
- Institute of Chemistry, Universidade Federal de Uberlândia, Campus Santa Mônica, Uberlândia 38400-142, MG, Brazil
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Effect of a lone electron pair and tetrel interactions on the structure of Pb(II) CPs constructed from pyrimidine carboxylates and auxiliary inorganic ions. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Metal Complexes in Diagnosis and Therapy. Int J Mol Sci 2022; 23:ijms23084377. [PMID: 35457194 PMCID: PMC9024768 DOI: 10.3390/ijms23084377] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/07/2022] [Accepted: 04/13/2022] [Indexed: 02/07/2023] Open
Abstract
The use of metal complexes for health and healing has been in use for over the last several millennia and perhaps longer [...].
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Erciyes A, Andac M. Synthesis and characterization of nano-sized magnesium 1,4-benzenedicarboxylate metal organic framework via electrochemical method. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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The Synthesis and Characterization of a Novel One-Dimensional Bismuth (III) Coordination Polymer as a Precursor for the Production of Bismuth (III) Oxide Nanorods. CRYSTALS 2022. [DOI: 10.3390/cryst12010113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel Bi (III) coordination compound, [Bi(HQ)(Cl)4]n ((Q = pyridine-4-carbaldehyde thiosemicarbazone), was prepared in this research using a sonochemical technique. SEM, infrared spectroscopy (IR), XRD, and single-crystal X-ray analysis were utilized to analyze the Bi(III) coordination compound. The structure determined using single-crystal X-ray crystallography indicates that the coordination compound is a 1D polymer in solid state and that the coordination number of bismuth (III) ions is six, (BiSCl5), with one S donor from the organic ligand and five Cl donors from anions. It is equipped with a hemidirectional coordination sphere. It is interesting that the ligand has been protonated in the course of the reaction with a Cl- ion balancing the charge. This compound’s supramolecular properties are directed and regulated by weak directional intermolecular interactions. Through π–π stacking interactions, the chains interact with one another, forming a 3D framework. Thermolysis of the compound at 170 °C with oleic acid resulted in the formation of pure phase nanosized Bi (III) oxide. SEM technique was used to examine the morphology and size of the bismuth (III) oxide product produced.
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Li JX, Xiong LY, Fu LL, Bo WB, Du ZX, Feng X. Structural diversity of Mn(II) and Cu(II) complexes based on 2-carboxyphenoxyacetate linker: Syntheses, conformation comparison and magnetic properties. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122636] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Ng SW. Ψ-Polyhedral symbols for bismuth(III) with an active electron lone pair. Acta Crystallogr C Struct Chem 2021; 77:740-744. [PMID: 34864715 DOI: 10.1107/s2053229621011888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/09/2021] [Indexed: 11/10/2022] Open
Affiliation(s)
- Seik Weng Ng
- Faculty of Applied Sciences, UCSI University, Cheras, Kuala Lumpur, Malaysia
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Structural insights into coordination polymers based on 6s2 Pb(II) and Bi(III) centres connected via heteroaromatic carboxylate linkers and their potential applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213935] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Synthesis and Structure of Novel Copper(II) Complexes with N,O- or N,N-Donors as Radical Scavengers and a Functional Model of the Active Sites in Metalloenzymes. Int J Mol Sci 2021; 22:ijms22147286. [PMID: 34298905 PMCID: PMC8307904 DOI: 10.3390/ijms22147286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 01/22/2023] Open
Abstract
To evaluate the antioxidant activity of potential synthetic enzyme mimetics, we prepared new five copper(II) complexes via a self-assembly method and named them [Cu(2-(HOCH2)py)3](ClO4)2 (1), [Cu(2-(HOCH2)py)2(H2O)2]SiF6 (2), [Cu2(2-(HOCH2CH2)py)2(2-(OCH2CH2)py)2](ClO4)2 (3), [Cu(pyBIm)3](BF4)2·1.5H2O (4) and [Cu(py2C(OH)2)2](ClO4)2 (5). The synthetic protocol involved N,O- or N,N-donors: 2-(hydroxymethyl)pyridine (2-(HOCH2)py), 2-(hydroxyethyl)pyridine (2-(HOCH2CH2)py), 2-(2-pyridyl)benzimidazole (pyBIm), di(2-pyridyl)ketone (py2CO). The obtained Cu(II) complexes were fully characterised by elemental analysis, FTIR, EPR, UV-Vis, single-crystal X-ray diffraction and Hirshfeld surface analysis. Crystallographic and spectroscopic analyses confirmed chromophores of both monomeric ({CuN3O3} (1), {CuN2O4} (2), {CuN6} (4), {CuN4O2} (5)) and dimeric complex ({CuN2O3} (3)). Most of the obtained species possessed a distorted octahedral environment, except dimer 3, which consisted of two copper centres with square pyramidal geometries. The water-soluble compounds (1, 3 and 5) were selected for biological testing. The results of the study revealed that complex 1 in solutions displayed better radical scavenging activity than complexes 3, 5 and free ligands. Therefore, complex 1 has been selected for further studies to test its activity as an enzyme mimetic. The chosen compound was tested on the erythrocyte lysate of two groups of patients after undergoing chemotherapy and chemoradiotherapy. The effect of the tested compound (1) on enzyme activity levels (TAS, SOD and CAT) suggests that the selected complex can be treated as a functional mimetic of the enzymes.
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Refat MS, Sayqal A, Aljohani MM, Saad F, Al‐Solimy AM, Bayazeed AA, Abumelha HM, Shah R, El‐Metwaly N. Synthesis of Al(III), Bi(III), Sb(III), Sn(II) and Pb(II) Complexes Based on a Plant Auxin Hormone: Characterization; DFT, Pharmacokinetics and MOE‐Docking with Plant‐Cell Proteins. ChemistrySelect 2021. [DOI: 10.1002/slct.202004788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Moamen S. Refat
- Department of Chemistry Collage of Science Taif University, P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Ali Sayqal
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
| | - Meshari M. Aljohani
- Depertment of Chemistry Faculty of Science Tabuk University Tabuk 71491 Saudi Arabia
| | - Fawaz Saad
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
| | - Amerah M. Al‐Solimy
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
| | - Abrar A. Bayazeed
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
| | - Hana M. Abumelha
- Department of Chemistry Faculty of Science Princess Nourah Bint Abdulrahman University Riyadh Saudi Arabia
| | - Reem Shah
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
| | - Nashwa El‐Metwaly
- Department of Chemistry Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia
- Department of Chemistry Faculty of Science Mansoura University Mansoura Egypt
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