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Mansour MSA, Abdelkarim AT, El-Sherif AA, Mahmoud WH. Metal complexes featuring a quinazoline schiff base ligand and glycine: synthesis, characterization, DFT and molecular docking analyses revealing their potent antibacterial, anti-helicobacter pylori, and Anti-COVID-19 activities. BMC Chem 2024; 18:150. [PMID: 39127681 DOI: 10.1186/s13065-024-01239-7] [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: 02/08/2024] [Accepted: 06/28/2024] [Indexed: 08/12/2024] Open
Abstract
Mixed ligand complexes of manganese(II), cobalt(II), copper(II), and cadmium(II)with an innovative Schiff base ligand denoted as (L1), 4-(2-((1E,2E)-1-(2-(p-tolyl)hydrazineylidene)propan-2-ylidene)hydrazineyl), served as the principal ligand, while glycine (L2) was employed as secondary ligand were successfully effectively characterized through a comprehensive set of analyses, including Elemental analysis, UV-Visible, FT-IR, Mass spectra, and conductometric measurements. Density functional theory (DFT) computations were executed to discern the enduring electronic arrangement, the energy gap, dipole moment and chemical hardness of the hybrid ligand assemblies. The proposed geometry for the complexes is a distorted octahedral structure. The antimicrobial efficacy of these compounds was assessed against a range of bacterial and fungal strains. Notably, these complexes exhibited promising antimicrobial activities, with the cadmium (II) complex demonstrating superior efficacy towards all tested organisms. These compounds were also examined for their antibiotic properties against H. pylori to explore their broader medical potential. The Schiff base ligand and its corresponding metal complexes displayed substantial potential as an antibiotic against H. pylori. Additionally, the antitumor potential of the synthesized complexes was assessed against MCF-7 (Breast carcinoma) cells-the Cu (II) complex demonstrated superior activity with the lowest IC50 value compared to cisplatin. Moreover, it exhibited reduced cytotoxicity towards normal cells (VERO cells) compared to cisplatin, establishing it as the most potent compound in the study. Furthermore, molecular docking was explored of the Schiff base ligand and its corresponding cadmium(II) complex. The analysis of the docking study yielded valuable structural insights that can be effectively utilized in conducting inhibition studies for example against COVID-19. This comprehensive study highlights these synthesized compounds' multifaceted applications and promising bioactive properties.
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Affiliation(s)
- M S A Mansour
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Abeer T Abdelkarim
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ahmed A El-Sherif
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Walaa H Mahmoud
- Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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Ajormal F, Bikas R, Noshiranzadeh N, Emami M, Kozakiewicz-Piekarz A. Synthesis of chiral Cu(II) complexes from pro-chiral Schiff base ligand and investigation of their catalytic activity in the asymmetric synthesis of 1,2,3-triazoles. Sci Rep 2024; 14:10603. [PMID: 38719987 PMCID: PMC11079015 DOI: 10.1038/s41598-024-60930-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
A pro-chiral Schiff base ligand (HL) was synthesized by the reaction of 2-amino-2-ethyl-1,3-propanediol and pyridine-2-carbaldehyde in methanol. The reaction of HL with CuCl2·2H2O and CuBr2 in methanol gave neutral mononuclear Cu(II) complexes with general formula of [Cu(HL)Cl2] (1) and [Cu(HL)Br2] (2), respectively. By slow evaporation of the methanolic solutions of 1 and 2, their enantiomers were isolated in crystalline format. The formation of pure chiral crystals in the racemic mixture was amply authenticated by single crystal X-ray analysis, which indicated that S-[Cu(HL)Cl2], R-[Cu(HL)Cl2], and S-[Cu(HL)Br2] are crystallized in chiral P212121 space group of orthorhombic system. Preferential crystallization was used to isolate the R and S enantiomers as single crystals and the isolated compounds were also studied by CD analysis. Structural studies indicated that the origin of the chirality in these compounds is related to the coordination mode of the employed pro-chiral ligand (HL) because one of its carbon atoms has been converted to a chiral center in the synthesized complexes. Subsequently, these complexes were used in click synthesis of a β-hydroxy-1,2,3-triazole and the results of catalytic studies indicated that 1 and 2 can act as enantioselective catalysts for the asymmetric synthesis of β-hydroxy-1,2,3-triazole product under mild condition. This study illustrates the significant capacity of the use of pro-chiral ligands in preparing chiral catalysts based on complexes which can also be considered as an effective approach to cheap chiral catalysts from achiral reagents.
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Affiliation(s)
- Fatemeh Ajormal
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, 45371-38791, Iran
| | - Rahman Bikas
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, 34148-96818, Iran.
| | - Nader Noshiranzadeh
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, 45371-38791, Iran.
| | - Marzieh Emami
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, 45371-38791, Iran
| | - Anna Kozakiewicz-Piekarz
- Department of Biomedical and Polymer Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100, Torun, Poland
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Alamier WM, Alaghaz ANMA. Design, spectral characterization, quantum chemical investigation, biological activity of nano-sized transition metal complexes of tridentate 3-mercapto-4H-1,2,4-triazol-4-yl-aminomethylphenol Schiff base ligand. J Biomol Struct Dyn 2023:1-21. [PMID: 38133937 DOI: 10.1080/07391102.2023.2294171] [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: 08/25/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023]
Abstract
A tridentate Schiff base ligand, H2MTIP, was produced by condensing salicylaldehyde with 4-amino-4H-1,2,4-triazole-3-thiol. The ligand was then used to create nanosized complexes of Pt(II), Ni(II), Cu(II), and Pd(II). The complexes have the composition [Pt/Ni/Cu/or Pd(MTIP)(H2O)], this conclusion is supported by molar conductance, magnetic moments, elemental analyses, spectral analyses. In DFT analysis, the 6-31+ g(d,p) basis set was used to fully optimize the energy with respect to the shapes of Schiff base ligand and metal complexes. Pt(II), Ni(II), Cu(II), and Pd(II) complexes have been assigned square-planar geometries. At the same time, the intense diffraction peaks in X-ray diffractograms show their crystalline features with particle sizes in the nanoscale range. The binding interaction of calf thymus DNA with these metal complexes and their insulin-like activity was examined in vitro by inhibiting α-amylase. The study investigated the in-vitro activity of several complexes and identified Pt(II) complex as the one with the highest activity. The researchers then tested this complex for in-vivo antidiabetic activity in induced diabetic rats using the STZ model, and it significantly lowered blood glucose levels. The antioxidant activity and toxicity level of Pt(II) complex were also excellent, suggesting that it could be a good candidate for further research as a possible diabetes drug.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Waleed M Alamier
- Department of Chemistry, College of Science, Jazan University, Jazan, Kingdom of Saudi Arabia
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Sharma BP, Subin JA, Marasini BP, Adhikari R, Pandey SK, Sharma ML. Triazole based Schiff bases and their Oxovanadium(IV) complexes: Synthesis, characterization, antibacterial assay, and computational assessments. Heliyon 2023; 9:e15239. [PMID: 37089299 PMCID: PMC10119765 DOI: 10.1016/j.heliyon.2023.e15239] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
The synthesis and characterization of two new Schiff base ligands containing 1,2,4-triazole moieties and their oxovanadium(IV) complexes have been reported. The ligands and their complexes were studied by ultraviolet-visible (UV-Vis), Fourier transform infrared (FTIR), proton nuclear magnetic resonance (1H NMR), electron paramagnetic resonance (EPR), X-ray diffraction (XRD), conductivity measurement, cyclic voltammetry (CV), and elemental analyses. The molar conductance of oxovanadium(IV) complexes were found to be relatively low, depicting their non-electrolytic nature. The XRD patterns reveal the size of particles to be 47.53 nm and 26.28 nm for the two complexes in the monoclinic crystal system. The molecular structures, geometrical parameters, chemical reactivity, stability, and frontier molecular orbital pictures were determined by density functional theory (DFT) calculations. The theoretical vibrational frequencies and EPR g-factors (1.98) were found to correlate well with the experimental values. A distorted square pyramidal geometry with C2 symmetry of the complexes has been proposed from experimental and theoretical results in a synergistic manner. The antimicrobial sensitivity of the ligands and their metal complexes assayed in vitro against four bacterial pathogens viz. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Salmonella Typhi showed that the oxovanadium(IV) complexes are slightly stronger antibacterial agents than their corresponding Schiff base precursors. The binding affinities obtained from the molecular docking calculations with the receptor proteins of bacterial strains (2EUG, 3UWZ, 4GVF, and 4JVD) showed that the Schiff bases and their oxovanadium(IV) complexes have considerable capacity inferring activeness for effective inhibition. The molecular dynamics simulation of a protein-ligand (4JVD-HL2) complex with the best binding affinity of -12.8 kcal/mol for 100 ns showed acceptable stability of the docked pose and binding free energy of -15.17 ± 2.29 kcal/mol from molecular mechanics-generalized Born surface area (MM-GBSA) calculations indicated spontaneity of the reaction. The outcome of the research shows the complementary role of computational methods in material characterization and provides an interesting avenue to pursue for exploring new triazole based Schiff's bases and its vanadium compounds for better properties.
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Formation of βs-Cu Complexes Via pH-Metric Titration for Antimicrobial Studies. Pharm Chem J 2023. [DOI: 10.1007/s11094-023-02825-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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Ahmed YM, Ashmawy AM, Omar M, Abbas AA, Mostafa SG, Mohamed GG. Synthesis, characterization, biological activity, DFT studies on transition metal complexes derived from 5,5′-(propane-1,3-diylbis(sulfanediyl))bis(1,3,4-thiadiazol-2-amine) ligand and its corrosion inhibition study on carbon steel. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Khalaf MM, El-Lateef HMA, Alhadhrami A, Sayed FN, Mohamed GG, Gouda M, Shaaban S, Abu-Dief AM. Synthesis, Spectroscopic, Structural and Molecular Docking Studies of Some New Nano-Sized Ferrocene-Based Imine Chelates as Antimicrobial and Anticancer Agents. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3678. [PMID: 35629702 PMCID: PMC9144163 DOI: 10.3390/ma15103678] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/24/2022]
Abstract
The newly synthesized organometallic acetyl ferrocene imine ligand (HL) was obtained by the direct combination of 2-acetyl ferrocene with 2-aminothiophenol. The electronic and molecular structure of acetyl ferrocene imine ligand (HL) was refined theoretically and the chemical quantum factors were computed. Complexes of the acetyl ferrocene imine ligand with metal(II)/(III) ions (Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)) were fabricated. They were inspected by thermal (DTG/TG), spectroscopic techniques (FT-IR, 1H NMR, mass, UV-Vis), molar conductivity, and CHNClM to explicate their structures. Studies using scanning electron microscope (SEM) were conducted on the free acetyl ferrocene imine ligand and its Cd(II) chelate to confirm their nano-structure. To collect an idea about the effect of metal ions on anti-pathogenic properties upon chelation, the newly synthesized acetyl ferrocene imine ligand and some of its metal chelates were tested against a variety of microorganisms, including Bacillus subtilis, Staphylococcus aureus, Salmonella typhimurium, Escherichia coli, Aspergillus fumigatus, and Candida albicans. The ligand and its metal chelate were tested for cytotoxic activity in human cancer (MCF-7 cell viability) and human melanocyte cell line HBF4. It was discovered that the Cd(II) chelate had the lowest IC50 of the three and thus had the prior activity. Molecular docking was utilized to investigate the interaction of acetyl ferrocene imine ligand (HL) with the receptors of the vascular endothelial growth factor receptor VEGFR (PDB ID: 1Y6a), human Topo IIA-bound G-segment DNA crystal structure (PDB ID: 2RGR), and Escherichia coli crystal structure (PDB ID: 3T88).
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Affiliation(s)
- Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Abdulrahman Alhadhrami
- Department of Chemistry, Colleague of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Fatma N. Sayed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria 21934, Egypt
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
| | - Saad Shaaban
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed M. Abu-Dief
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Department of Chemistry, College of Science, Taibah University, P.O. Box 344, Madinah 42353, Saudi Arabia
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Deghadi RG, Mohamed GG, Mahmoud NF. Bioactive La (III), Er (III), Yb (III), Ru (III) and Ta(V) Complexes of New Organometallic Schiff Base: Preparation, Structural Characterization, Antibacterial, Anticancer activities and MOE Studies. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Reem G. Deghadi
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Nessma F. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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Fahim AM, Magar HS, Mahmoud NH. Synthesis, anti‐proliferative activities, docking studies, and DFT calculations of novel isonicotinic mixed complexes. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Asmaa M. Fahim
- Green chemistry Department NRC (National Research Center), Dokki Cairo Egypt
| | - Hend S. Magar
- App. Org. Chemical Department, Chemical Industries Research Division, NRC (National Research Centre) Cairo Egypt
| | - Nelly H. Mahmoud
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain‐Shams University Cairo Egypt
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Mounesh, Reddy KRV, Yuvaraja D, Manriquez JM, Lokesh KS, Amshumali MK. Novel Schiff base iron( ii) phthalocyanine with composite MWCNTs on modified GCE: electrochemical sensor development for paracetamol. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00193d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Paracetamol is one of the most commonly consumed medicines to deal with minor pain, body ache, headache, fever etc. It can also be used for getting temporary relief from arthritis pain.
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Affiliation(s)
- Mounesh
- Department of Studies and Research in Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari – 583105, Karnataka, India
| | - K. R. Venugopala Reddy
- Department of Studies and Research in Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari – 583105, Karnataka, India
| | - D. Yuvaraja
- Quimica y de Farmacia, Pontificia Universidad Catolica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Juan M. Manriquez
- Quimica y de Farmacia, Pontificia Universidad Catolica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - K. S. Lokesh
- Department of Studies and Research in Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari – 583105, Karnataka, India
| | - M. K. Amshumali
- Department of Studies and Research in Industrial Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari – 583105, Karnataka, India
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Sindhu M, Kalaivani P, Prabhakaran R. Enhanced anticancer property of bio‐organometallic nano composites: Design, characterization, and biological evaluation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mathiyazhagan Sindhu
- Department of Chemistry, Nirmala College for Women Bharathiar University Coimbatore India
| | - Palaniappan Kalaivani
- Department of Chemistry, Nirmala College for Women Bharathiar University Coimbatore India
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Feng X, Li J, Feng Y, Zhang K, Chen N, Fang H, Li Z. Series of d10 complexes based on sulfamethoxazole: Auxiliary ligand induces structure diversity, luminescence and antibacterial properties. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122351] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ali MS, Hasan M. Chelating activity of (2E,2′E)-2,2′-(pyridine-2,6-diylbis(ethan-1-yl-1-ylidene)bis(N-ethylhydrazinecarbothioamide). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lin Y, Betts H, Keller S, Cariou K, Gasser G. Recent developments of metal-based compounds against fungal pathogens. Chem Soc Rev 2021; 50:10346-10402. [PMID: 34313264 DOI: 10.1039/d0cs00945h] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review provides insight into the rapidly expanding field of metal-based antifungal agents. In recent decades, the antibacterial resistance crisis has caused reflection on many aspects of public health where weaknesses in our medicinal arsenal may potentially be present - including in the treatment of fungal infections, particularly in the immunocompromised and those with underlying health conditions where mortality rates can exceed 50%. Combination of organic moieties with known antifungal properties and metal ions can lead to increased bioavailability, uptake and efficacy. Development of such organometallic drugs may alleviate pressure on existing antifungal medications. Prodigious antimicrobial moieties such as azoles, Schiff bases, thiosemicarbazones and others reported herein lend themselves easily to the coordination of a host of metal ions, which can vastly improve the biocidal activity of the parent ligand, thereby extending the library of antifungal drugs available to medical professionals for treatment of an increasing incidence of fungal infections. Overall, this review shows the impressive but somewhat unexploited potential of metal-based compounds to treat fungal infections.
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Affiliation(s)
- Yan Lin
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Harley Betts
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Sarah Keller
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Kevin Cariou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
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Post-synthetic modification of porous [Cu3(BTC)2] (BTC = benzene‐1,3,5‐tricarboxylate) metal organic framework with molybdenum and vanadium complexes for the epoxidation of olefins and allyl alcohols. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-020-01912-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Adeleke AA, Islam MS, Sanni O, Mocktar C, Zamisa SJ, Omondi B. Aryl variation and anion effect on CT-DNA binding and in vitro biological studies of pyridinyl Ag(I) complexes. J Inorg Biochem 2020; 214:111266. [PMID: 33166866 DOI: 10.1016/j.jinorgbio.2020.111266] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 12/28/2022]
Abstract
Synthesis and spectroscopic characterization of five ligands ((E)-2-((pyridin-2-ylmethylene)amino)phenol L1, 2-(pyridin-2-yl)benzo[d]thiazole L2, (E)-N-(2-fluorophenyl)-1-(pyridin-2-yl)methanimine L3, (E)-1-(pyridin-2-yl)-N-(p-tolyl)methanimine L4 and (E)-1-(pyridin-2-yl)-N-(thiophen-2-ylmethyl)methanimine L5 along with fifteen silver(I) complexes of L1 - L5, with a general formula [AgL2]+X- (L = Schiff base and X = NO3-, ClO4- or CF3SO3-) is reported. The structures of complexes [Ag(L4)2]NO3, [Ag(L5)2]NO3, [Ag(L3)2]ClO4, [Ag(L4)2]ClO4 and [Ag(L5)2]CF3SO3 were determined unequivocally by single crystal X-ray diffraction analysis. Calf-thymus deoxyribonucleic acid (CT-DNA), bovine serum albumin (BSA) binding studies, antioxidant, and antibacterial studies were performed for all complexes. Complexes [Ag(L2)2]NO3, [Ag(L5)2]NO3, [Ag(L1)2]ClO4 and [Ag(L3)2]ClO4 whose ligands have an OH- and F- as substituents or with a thiophene or thiazole moiety showed better antibacterial activities with lower minimum inhibitory concentration (MIC) values compared to the standard ciprofloxacin, against most of the bacterial strains tested. Similarly, complexes [Ag(L1)2]NO3,[Ag(L2)2]NO3,[Ag(L3)2]NO3 and [Ag(L5)2]NO3 with the NO3- anion, [Ag(L1)2]ClO4 and [Ag(L2)2]ClO4 with ClO4- anion, and [Ag(L5)2]CF3SO3 with CF3SO3- anion showed higher activities for antioxidant studies. Complexes [Ag(L4)2]ClO4 and [Ag(L4)2]CF3SO3 with the Methyl substituent and CF3SO3- as the anion, displayed high antioxidant activities in FRAP (ferric reducing antioxidant power) than the standard ascorbic acid. Spectroscopic studies of all the complexes revealed their moderate to high interaction with calf thymus DNA via an intercalation mode. In addition, the relatively moderate interaction of most of the complexes with BSA was through a static quenching mechanism.
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Affiliation(s)
- Adesola Abimbola Adeleke
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
| | - Md Shahidul Islam
- Discipline of Biochemistry, School of Life Sciences, University of Kwazulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Olakunle Sanni
- Discipline of Biochemistry, School of Life Sciences, University of Kwazulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of Kwazulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
| | - Sizwe J Zamisa
- School of Chemistry and Physics, University of Kwazulu-Natal, Westville Campus, Private Bag X54001, Westville 4001, South Africa
| | - Bernard Omondi
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa.
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Sakthivel A, Thangagiri B, Raman N, Joseph J, Guda R, Kasula M, Mitu L. Spectroscopic, SOD, anticancer, antimicrobial, molecular docking and DNA binding properties of bioactive VO(IV), Cu(II), Zn(II), Co(II), Mn(II) and Ni(II) complexes obtained from 3-(2-hydroxy-3-methoxybenzylidene)pentane-2,4-dione. J Biomol Struct Dyn 2020; 39:6500-6514. [PMID: 32794423 DOI: 10.1080/07391102.2020.1801508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Novel macrocyclic Schiff base complexes [[ML]X; where M = Cu(II), Co(II), Ni(II), Zn(II), Mn(II) and VO(IV); L = macrocyclic ligand; X = Cl2 and SO42-] have been synthesized and characterized by microanalytical, 1H, 13C NMR, IR, Mass, UV-Vis, EPR spectral studies, as well as conductivity data. All the complexes exhibit square-planar geometry except vanadium complex. Magnetic susceptibility measurements and high conductance data reveal the monomeric and electrolytic nature of the complexes. Electronic absorption, cyclic voltammetry, viscosity measurements have been carried out on the interaction of the complexes with DNA. The results suggest that the complexes bind to DNA by intercalation via the aromatic ring of the macrocycle into the base pairs of DNA. Using gel electrophoresis experiment in the presence and absence of oxidant (H2O2) the nuclease cleavage activity of the complexes has been performed on plasmid DNA. The results demonstrate that most of the complexes have promising superoxide dismutase (SOD)-mimetic activity. The in vitro cytotoxicity of ligand and its complexes has also been evaluated against human breast and colon carcinoma cells. Binding interactions and energies of ligand and its metal complexes [ML]2+ (M = VO(IV), Mn(II), Co(II), Ni(II), Cu(II), Zn(II)) against the receptors EGFR and HER2 are performed using the Auto dock module. Consequently, it is found that the ligand is strong inhibitor for EGFR and HER2 while [VOL]SO4 is good inhibitor for EGFR and [ZnL]Cl2 is moderate inhibitor for HER2. The antimicrobial activity of the ligand and its complexes against bacteria Salmonella typhi, Staphylococcus aureus, Escherichia coli and Bacillus subtilis and fungi Aspergillus niger, Aspergillus flavus, Candida Albicans and Rhizoctonia bataicola. The complexes have higher activities than the macrocyclic free Schiff base. Interaction of [VOL]SO4 to the binding sites of target protein EGFR (PDB ID: 4HJ0). Research HighlightsMacrocyclic Schiff base and its metal complexes were synthesized.Complexes bind to DNA by intercalation via the aromatic ring of the macrocycle into the base pairs of DNA.Vanadyl complex is a good inhibitor for EGFR.The complexes of copper, zinc and vanadium show efficient antitumor activity.Copper and vanadium complexes have superior antimicrobial activity than the standards.
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Affiliation(s)
- A Sakthivel
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, India
| | - B Thangagiri
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, India
| | - N Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar, India
| | - J Joseph
- Department of Chemistry, Noorul Islam Centre for Higher Education, Kumaracoil, Tamil Nadu, India
| | - Ramu Guda
- Department of Chemistry, Kakatiya University, Warangal, India
| | - Mamatha Kasula
- Department of Chemistry, Kakatiya University, Warangal, India
| | - L Mitu
- Department of Nature Sciences, University of Pitesti, Pitesti, Romania
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Synthesis, Characterization and Antibacterial Activity of Schiff Base, 4-Chloro-2-{(E)-[(4-Fluorophenyl)imino]methyl}phenol Metal (II) Complexes. J CHEM-NY 2020. [DOI: 10.1155/2020/1745236] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A new series of Mn (II), Co (II), Ni (II), Cu (II), and Zn (II) complexes of the Schiff base ligand, 4-chloro-2-{(E)-[(4-fluorophenyl)imino]methyl}phenol (C13H9ClFNO), was synthesized in a methanolic medium. The Schiff base was derived from the condensation reaction of 5-chlorosalicylaldehyde and 4-fluoroaniline at room temperature. Elemental analysis, FT-IR, UV-Vis, and NMR spectral data, molar conductance measurements, and melting points were used to characterize the Schiff base and the metal complexes. From the elemental analysis data, the metal complexes formed had the general formulae [M(L)2(H2O)2], where L = Schiff base ligand (C13H9ClFNO) and M = Mn, Co, Ni, Cu, and Zn. On the basis of FT-IR, electronic spectra, and NMR data, “O” and “N” donor atoms of the Schiff base ligand participated in coordination with the metal (II) ions, and thus, a six coordinated octahedral geometry for all these complexes was proposed. Molar conductance studies on the complexes indicated they were nonelectrolytic in nature. The Schiff base ligand and its metal (II) complexes were tested in vitro to evaluate their bactericidal activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus typhi) using the disc diffusion method. The antibacterial evaluation results revealed that the metal (II) complexes exhibited higher antibacterial activity than the free Schiff base ligand.
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19
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DFT and TDDFT study of chemical reactivity and spectroscopic properties of M(TePh)2 [TMEDA] M=Zn, Cd, and Hg complexes. Struct Chem 2020. [DOI: 10.1007/s11224-020-01509-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Metal Chelates of Tridentate (NNO) 1,2,4-Triazine Schiff Base: Synthesis, Physico-chemical Investigation and Pharmacological Screening. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-019-01413-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Liu Y, Yang L, Yin D, Dang Y, Yang L, Zou Q, Li J, Sun J. Solvent-free synthesis, characterization, biological activity of schiff bases and their metal (II) complexes derived from ferrocenyl chalcone. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Nejati K, Bakhtiari A, Bikas R, Rahimpour J. Molecular and electronic structure, spectroscopic and electrochemical properties of Copper(II) complexes: Experimental and DFT studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.135] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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23
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Abd El‐Hamid S, Sadeek S, Abd El‐Lattif N. Study of the chemical structure and their nematicidal activity of N
2
O
2
tetradentate Schiff base metal complexes. Appl Organomet Chem 2019; 33. [DOI: 10.1002/aoc.5010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 05/03/2019] [Indexed: 09/01/2023]
Affiliation(s)
- S.M. Abd El‐Hamid
- Department of Chemistry, Faculty of ScienceZagazig University Zagazig Egypt
| | - S.A. Sadeek
- Department of Chemistry, Faculty of ScienceZagazig University Zagazig Egypt
| | - N.S. Abd El‐Lattif
- Department of Pesticides FormulationCentral Agricultural Pesticides Laboratory Cairo Egypt
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24
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Mounesh, Jilani BS, Pari M, Reddy KV, Lokesh K. Simultaneous and sensitive detection of ascorbic acid in presence of dopamine using MWCNTs-decorated cobalt (II) phthalocyanine modified GCE. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.090] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Hegde GS, Netalkar SP, Revankar VK. Copper (II) complexes of 3,5‐di‐tert‐butyl‐2‐hydroxybenzoylhydrazones of 2‐formylpyridine and 2‐acetylpyridine, with tautomeric azine‐scaffold‐based architecture: Synthesis, crystal structures, the effect of counteranions on complexation, and their anti‐microbial and anti‐tuberculosis evaluation. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4840] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ganesh S. Hegde
- Department of ChemistryKarnatak University Pavate Nagar, Dharwad 580 003 Karnataka India
- Department of ChemistryM. E. S., M. M. Arts & Science College Sirsi, Uttara Kannada 581 402 Karnataka India
| | - Sandeep P. Netalkar
- Department of ChemistryKarnatak University Pavate Nagar, Dharwad 580 003 Karnataka India
| | - Vidyanand K. Revankar
- Department of ChemistryKarnatak University Pavate Nagar, Dharwad 580 003 Karnataka India
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26
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Basu Baul TS, Dutta D, Rocha BG, Guedes da Silva MC, Lyčka A. Triorganostannyl(IV) benzoates with pendulous framework appended with ferrocene scaffold. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Anacona JR, Salazar R, Santaella J, Celis F. Synthesis and characterization of transition metal complexes with a Schiff base derived from cephalexin and 1,2–diaminobenzene. antibacterial activity. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1569681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Juan R. Anacona
- Departamento de Quimica, Universidad de Oriente, Cumana, Venezuela
| | - Rafael Salazar
- Departamento de Quimica, Universidad de Oriente, Cumana, Venezuela
| | - Javier Santaella
- Departamento de Quimica, Universidad de Oriente, Cumana, Venezuela
| | - Freddy Celis
- Laboratorio Espectroscopia Vibracional Aplicada, Departamento de Quimica, Universidad de Playa Ancha, Valparaiso, Chile
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Mahmoud WH, Deghadi RG, El Desssouky MM, Mohamed GG. Transition metal complexes of nano bidentate organometallic Schiff base: Preparation, structure characterization, biological activity, DFT and molecular docking studies. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4556] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Reem G. Deghadi
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | | | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
- Egypt Nanotechnology Center; Cairo University; El-Sheikh Zayed, 6 October City Giza 12588 Egypt
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Organoruthenium(II) Complexes Ameliorates Oxidative Stress and Impedes the Age Associated Deterioration in Caenorhabditis elegans through JNK-1/DAF-16 Signalling. Sci Rep 2018; 8:7688. [PMID: 29769649 PMCID: PMC5955923 DOI: 10.1038/s41598-018-25984-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 05/02/2018] [Indexed: 12/21/2022] Open
Abstract
New ruthenium(II) complexes were synthesised and characterized by various spectro analytical techniques. The structure of the complexes 3 and 4 has been confirmed by X-ray crystallography. The complexes were subjected to study their anti-oxidant profile and were exhibited significantly greater in vitro DPPH radical scavenging activity than vitamin C. We found that complexes 1–4 confered tolerance to oxidative stress and extend the mean lifespan of mev-1 mutant worms and wild-type Caenorhabditis elegans. Further, mechanistic study and reporter gene expression analysis revealed that Ru(ƞ6-p-cymene) complexes maintained the intracellular redox status and offers stress resistance through activating JNK-1/DAF-16 signaling axis and possibly by other antioxidant response pathway. Notably, complex 3 and 4 ameliorates the polyQ (a Huntington’s disease associated protein) mediated proteotoxicity and related behavioural deficits in Huntington’s disease models of C. elegans. From these observations, we hope that new Ru(ƞ6-p-cymene) complexes could be further considered as a potential drug to retard aging and age-related neurodegenerative diseases.
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30
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Mahmoud WH, Sayed FN, Mohamed GG. Azo dye with nitrogen donor sets of atoms and its metal complexes: Synthesis, characterization, DFT, biological, anticancer and Molecular docking studies. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4347] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
| | - Fatma N. Sayed
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza 12613 Egypt
- Egypt Nanotechnology Center Cairo University El‐Sheikh Zayed, 6th October 12588 Egypt
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31
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Kumar S, Syed A, Andotra S, Kaur R, Vikas, Pandey SK. Investigation of synthesized new vanadium(III) complexes of ditolyldithiophosphate ligands by spectroscopic, cyclic voltammetric, DFT, antimicrobial and cytotoxic studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Devagi G, Dallemer F, Kalaivani P, Prabhakaran R. Organometallic ruthenium(II) complexes containing NS donor Schiff bases: Synthesis, structure, electrochemistry, DNA/BSA binding, DNA cleavage, radical scavenging and antibacterial activities. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.10.036] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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33
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El-Deen I, Shoair A, El-Bindary M. Synthesis, structural characterization, molecular docking and DNA binding studies of copper complexes. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.072] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Mahmoud WH, Mahmoud NF, Mohamed GG. New nanobidentate Schiff base ligand of 2-aminophenol with 2-acetyl ferrocene with some lanthanide metal ions: synthesis, characterization and Hepatitis A, B, C and breast cancer docking studies. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1391379] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
| | - Nessma F. Mahmoud
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
| | - Gehad G. Mohamed
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
- Egypt Nanotechnology Center, Cairo University, 6th October City, Egypt
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35
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Shafaatian B, Atghaei M, Rezvani SA. Investigation of DNA Binding Interaction of Newly Synthesized Nickel(II) and Palladium(II) Complexes Containing Ferrocenyl Schiff Base Ligand. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bita Shafaatian
- School of Chemistry; Damghan University; Damghan 3671641167 Iran
| | - Mohsen Atghaei
- School of Chemistry; Damghan University; Damghan 3671641167 Iran
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36
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Mahmoud WH, Mahmoud NF, Mohamed GG. Mixed ligand complexes of the novel nanoferrocene based Schiff base ligand (HL): Synthesis, spectroscopic characterization, MOE studies and antimicrobial/anticancer activities. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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37
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Feng X, Wu KY, Xie SY, Li R, Wang L. A heterometallic polymer based on bis-salicylidene Schiff base ligand, synthesis, electronic chemistry, and antibacterial property. INORG NANO-MET CHEM 2017. [DOI: 10.1080/24701556.2017.1284102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xun Feng
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, China
| | - Kong Yang Wu
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Shi Yu Xie
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, China
| | - RongFang Li
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, China
| | - LiYa Wang
- College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, China
- School of Life Science and Technology, Nanyang Normal University, Nanyang, China
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38
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Synthesis of acetic acid-[(hydrazinylthioxomethyl)thio]-sodium and its application on the flotation separation of molybdenite from galena. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.03.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Abdel Aziz AA, Seda SH. Synthesis, structural features and biochemical activity assessment of N,N′-bis-(2-mercaptophenylimine)-2,5-thiophenedicarboxaldehyde Schiff base and its Co(II), Ni(II), Cu(II) and Zn(II) complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3879] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ayman A. Abdel Aziz
- Department of Chemistry, Faculty of Science; Ain Shams University; 11566 Cairo Egypt
| | - Sabry H. Seda
- Department of Chemistry, Faculty of Science; Benha University; 13511 Benha Egypt
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40
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New Coordination Complexes of Cd(II) and Co(II) with Ethyl Isonicotinate Used for Catalytic Degradation of Acid Blue 92 Dye. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0593-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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41
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Devagi G, Reyhaneh F, Dallemer F, Jayakumar R, Kalaivani P, Prabhakaran R. Morphological and in vitro evaluation of programmed cell death in MCF-7 cells by new organoruthenium(ii) complexes. NEW J CHEM 2017. [DOI: 10.1039/c7nj01707c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Cyclopentadienyl ruthenium(ii) thiosemicarbazone complexes with the formula [Ru(η5-C5H5)(Ac-tsc)PPh3]·Cl (1), [Ru(η5-C5H5)(Ac-mtsc)PPh3]·Cl (2), [Ru(η5-C5H5)(Ac-etsc)PPh3]·Cl (3) and [Ru(η5-C5H5)(Ac-ptsc)PPh3] (4) were synthesized and characterized by various spectroscopic techniques (1H NMR,13C NMR, IR and UV-vis).
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Affiliation(s)
- G. Devagi
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - F. Reyhaneh
- Department of Molecular Medicine
- University of Malaya
- Malaysia
| | - F. Dallemer
- Lab MADIREL CNRS UMR 7246
- Aix Marseille University
- Saint-Jerome Campus
- 13397 Marseille Cedex 20
- France
| | - R. Jayakumar
- Department of Molecular Medicine
- University of Malaya
- Malaysia
| | - P. Kalaivani
- Department of Chemistry
- Nirmala College for Women
- Bharathiar University
- Coimbatore 641018
- India
| | - R. Prabhakaran
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
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Mishra N, Poonia K, Sharma N, Soni SK, Kumar D. Synthesis and characterization of thorium (IV) complexes of 2-aminothiazole and their evaluation as effective antimicrobial and antioxidant agents. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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43
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Redox chemistry, spectroelectrochemistry and catalytic activity of novel synthesized phthalocyanines bearing four schiff bases on the periphery. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.08.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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44
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Spectroscopic, structural and theoretical studies of copper(II) complexes of tridentate NOS Schiff bases. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.098] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Mahmoud WH, Sayed FN, Mohamed GG. Synthesis, characterization andin vitroantimicrobial and anti-breast cancer activity studies of metal complexes of novel pentadentate azo dye ligand. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3529] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department; Faculty of Science, Cairo University; Giza 12613 Egypt
| | - Fatma N. Sayed
- 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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46
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Al-Saeedi SI, Alaghaz ANM, Ammar RA. Synthesis, spectroscopic characterization and electrochemical studies of Girard's T chromone complexes. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Singh K, Thakur R, Kumar V. Co(II), Ni(II), Cu(II), and Zn(II) complexes derived from 4-[{3-(4-bromophenyl)-1-phenyl-1H-pyrazol-4-ylmethylene}-amino]-3-mercapto-6-methyl-5-oxo-1,2,4-triazine. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2016. [DOI: 10.1016/j.bjbas.2016.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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48
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Poonia K, Siddiqui S, Arshad M, Kumar D. In vitro anticancer activities of Schiff base and its lanthanum complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 155:146-154. [PMID: 26619196 DOI: 10.1016/j.saa.2015.10.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/04/2015] [Accepted: 10/22/2015] [Indexed: 06/05/2023]
Abstract
Schiff base metal complexes are well-known to intercalate DNA. The La(III) complexes have been synthesized such that they hinder with the role of the topoisomerases, which control the topology of DNA during the cell-division cycle. Although several promising chemotherapeutics have been developed, on the basis of Schiff base metal complex DNA intercalating system they did not proceed past clinical trials due to their dose-limiting toxicity. Herein, we discuss an alternative compound, the La(III) complex, [La(L(1))2Cl3]·7H2O based on a Schiff base ligand 2,3-dihydro-1H-indolo-[2,3-b]-phenazin-4(5H)-ylidene)benzothiazole-2-amine (L(1)), and report in vitro cell studies. Results of antitumor activity using cell viability assay, reactive oxygen species (ROS) generation and nuclear condensation in PC-3 (Human, prostate carcinoma) cells show that the metal complex is more potent than ligand. La(III) complexes have been synthesized by reaction of lanthanum(III) salt in 1:2M ratio with ligands L(1) and 3-(ethoxymethylene)-2,3-dihydro-1H-indolo[2,3-b]-phenazin-4(5H)-ylidene)benzathiazole-2-amine (L(2)) in methanol. The ligands and their La(III) complexes were characterized by molar conductance, magnetic susceptibility, elemental analyses, FT-IR, UV-Vis, (1)H/(13)C NMR, thermogravimetric, XRD, and SEM analysis.
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Affiliation(s)
- Kavita Poonia
- Department of Chemistry, Banasthali University, Rajasthan 304022, India
| | - Sahabjada Siddiqui
- Molecular Endocrinology Lab, Department of Zoology, Lucknow University, UP, India
| | - Md Arshad
- Molecular Endocrinology Lab, Department of Zoology, Lucknow University, UP, India
| | - Dinesh Kumar
- Department of Chemistry, Banasthali University, Rajasthan 304022, India.
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Mahmoud WH, Deghadi RG, Mohamed GG. Novel Schiff base ligand and its metal complexes with some transition elements. Synthesis, spectroscopic, thermal analysis, antimicrobial and in vitro
anticancer activity. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3420] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Reem G. Deghadi
- 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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Shoair A, El-Shobaky A, Abo-Yassin H. Synthesis, spectroscopic characterization, catalytic and antibacterial studies of ruthenium(III) Schiff base complexes. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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