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Chauhan C, Tanuj, Kumar R, Kumar J, Sharma S, Benmansour S, Kumar S. Synthesis, structural characterization, DFT and molecular dynamics simulations of dinuclear (μ-hydroxo)-bridged triethanolamine copper(II) complexes: efficient candidates towards visible light-mediated photo-Fenton degradation of organic dyes. Dalton Trans 2024. [PMID: 39087793 DOI: 10.1039/d4dt01463d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Multinuclear (di/tri) copper(II) complexes bridged through hydroxyl groups are very interesting coordination complexes owing to their potential applications in various fields. In this work, three novel dinuclear (μ-hydroxo)-bridged copper(II) complexes in the crystal form, namely, [Cu2(3,5-DIFLB)2(H2tea)2](H2O) (1), [Cu2(4-ClB)2(H2tea)2](H2O) (2), and [Cu2(4-ETHB)2(H2tea)2](H2O)2 (3) (where DIFLB = difluorobenzoate, CLB = chlorobenzoate, ETHB = ethoxybenzoate, and H3tea = triethanolamine), were isolated at room temperature using methanol and water in a 4 : 1 v/v ratio as a solvent. Furthermore, all three complexes (1-3) were characterised using spectroscopic (UV-vis, DRS, and FT-IR), electrochemical (CV) and single-crystal X-ray diffraction techniques. Structural insights gained by packing analysis revealed the role of steric constraints of substituents and various non-covalent interactions in lattice stabilization, which were indeed supported by theoretical and molecular electrostatic potential illustrations. Hirshfeld surface analysis provided quantitative verification about various non-covalent interactions (interatomic contacts) involved in the packing of molecules. Interestingly, as a potential application, complexes 1-3 all exhibited remarkable visible light-mediated photo-Fenton degradation of approximately 98% for 50 ppm concentration of organic dyes (fuchsin basic (FB) and methyl orange (MO)) in 90 minutes with the optimized conditions of 1 mg mL-1 of dye solution. In all the cases, dye degradation by these materials was ascribed to the symbiotic relations among the molecular structures of complexes 1-3, which were endowed with various electron-withdrawing and electron-releasing substituents and ionic strength, with respect to the structure, shape and interacting patterns of dye molecules. The adsorption mechanism indicates that various weak interactions between the donor and acceptor groups of complexes and dyes, such as electrostatic, hydrogen bonding, and direct coordination to metal sites, play a crucial role, which is confirmed by molecular dynamics (MD) simulations. Theoretical studies by DFT-based descriptors, molecular electrostatic potentials, and band gaps provided deep insights into various electronic and reactivity parameters. For subsequent processes of dye degradation, complexes 1-3 were stable and recoverable. The successful integration of experimental and theoretical approaches sheds light on copper-based dinuclear stable coordination complexes, showcasing a significant step towards the development of novel heterogeneous photo-Fenton catalysts.
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Affiliation(s)
- Chetan Chauhan
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India.
| | - Tanuj
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India.
| | - Rajesh Kumar
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India.
| | - Jitendra Kumar
- Department of Chemistry, MLPK, College, Balrampur, UP, India
| | - Subhash Sharma
- CONAHCyT-Centro de Nanociencias y Nanotecnología. Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada AP14, Ensenada, 22860, B.C, Mexico
| | - Samia Benmansour
- Departamento de Química Inorgánica, Edificio F Grupo M4 (Materiales moleculares Multifuncionales y Modulables) C/Doctor Moliner, 50 46100-Burjassot, Spain.
| | - Santosh Kumar
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla, India.
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2
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Singh G, Khurana S, Pawan, Mohit, Devi A, Singh A, Vikas, Batish DR, Sharma A. A piperazine- modified Schiff base sensor for highly selective detection of Zr (IV) ions: unveiling its antioxidant potential and regulatory effects on Zea mays growth. Int J Biol Macromol 2024; 261:129689. [PMID: 38272428 DOI: 10.1016/j.ijbiomac.2024.129689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/14/2024] [Accepted: 01/21/2024] [Indexed: 01/27/2024]
Abstract
Piperazine functionalized Schiff bases 4(a-c) were synthesized by a condensation reaction which were thoroughly characterized by using various spectroscopic techniques like 1H NMR, 13C NMR, IR and mass spectrometry. X-ray crystallography was used to analyse synthesized compound 4b. The sensing capability of 4b was investigated towards the tetravalent form of the zirconium ion among other metal ions. The limit of detection and the association constant, were calculated to be 56.4 × 10-8 M and 5.36 × 105 M-1 respectively. The inclusion of additional metal ions had no effect on the selectivity of sensor 4b. The binding mechanism was clarified using 1HNMR spectroscopy, which was further verified computationally, using DFT. Also, the seed germination experiments were performed and effect of compound 4b was analyzed on the seedlings of Zea Mays. An investigation into molecular docking study using (5HQX) protein revealed that it had inhibitory effects on cytokinin oxidase. The protein and ligand effectively associate, as indicated by the lower binding energy of -9.69 kcal/mol. Therefore, compound 4b can act as a good, powerful inhibitor against cytokinin oxidase.
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Affiliation(s)
- Gurjaspreet Singh
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Sumesh Khurana
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Pawan
- Department of Chemistry, G.G.D.S.D. College, Sector-32, Chandigarh, 160030, India
| | - Mohit
- Department of Chemistry, G.G.D.S.D. College, Sector-32, Chandigarh, 160030, India
| | - Anita Devi
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Akshpreet Singh
- Department of Chemistry, DAV College, Sector-10, Chandigarh, 160014, India
| | - Vikas
- Department of Chemistry, Panjab University, Chandigarh 160014, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Aditi Sharma
- Department of Botany, Panjab University, Chandigarh 160014, India
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3
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Kumar R V, Gosipatala SB, Kumar R, Srivastava D, Singh V, Suman K, Tripathi DK, Verma A, Mishra A, Vishwakarma KK, Singh SA, Pandey T, Agarwal S, Elyies M, Singh I, Sah PK, Sharma C, Parag R, Saxena P, Raj A, Tripathi A, Devi P, Poluri KM. Characterization, Antioxidant, and Antimicrobial Properties of Mulberry Lattices. ACS OMEGA 2023; 8:47758-47772. [PMID: 38144072 PMCID: PMC10733998 DOI: 10.1021/acsomega.3c06069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/31/2023] [Accepted: 11/13/2023] [Indexed: 12/26/2023]
Abstract
In order to find the most advantageous bioactive compounds from mulberry latex for drug development in the near future, this study was conducted to characterize and evaluate antioxidant and antimicrobial properties from four different mulberry lattices (BR-2, S-1, AR-14, and S-146). The characterization of the lattices was performed by scanning electron microscopy with energy-dispersive X-ray spectroscopy, gas chromatography coupled to mass spectroscopy, and Fourier transform infrared spectroscopy. Further, screenings of the antioxidant and antimicrobial potential of selected lattices were performed in vitro using 2,2-diphenyl-1-picrylhydrazyl assay and agar well diffusion methods, respectively. Interestingly, the outcome of the current study revealed that tested mulberry lattices contain a considerable amount of bioactive phytoconstituents, particularly antimicrobial and antioxidant compounds, as revealed by chromatographic analysis. BR-2 latex was found to have significant antioxidant activity (75%) followed by S-146 (64.6%) and AR-14 (52.9%). The maximum antimicrobial activity was found in BR-2 latex compared to other tested latex varieties. The results of this investigation showed that mulberry latex from the BR-2 type may successfully control both bacterial and fungal infections, with the added benefit of having enhanced antioxidant capabilities.
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Affiliation(s)
- Venkatesh Kumar R
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Sunil Babu Gosipatala
- Departmentof
Biotechnology, Babasaheb Bhimrao Ambedkar
University, Lucknow, Uttar Pradesh 226025, India
| | - Ram Kumar
- Department
of Zoology, Shri Venkateshwara University, Gajraula, Uttar Pradesh 244236, India
| | - Devika Srivastava
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Vandana Singh
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Kusumala Suman
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Deepak Kumar Tripathi
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Abhishek Verma
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Akash Mishra
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Karan Kumar Vishwakarma
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Stuti Annapurna Singh
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Tripti Pandey
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Sanskrati Agarwal
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Mohd Elyies
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Ishani Singh
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Pinky Kumari Sah
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Chaya Sharma
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Rishabh Parag
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Pragya Saxena
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Akanksha Raj
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Anshika Tripathi
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Poonam Devi
- Department
of Zoology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Krishna Mohan Poluri
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
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Khurana P, Pulicharla R, Brar SK. Imipenem-metal complexes: Computational analysis and toxicity studies with wastewater model microorganisms. ENVIRONMENTAL RESEARCH 2023; 239:117275. [PMID: 37827363 DOI: 10.1016/j.envres.2023.117275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/24/2023] [Accepted: 09/28/2023] [Indexed: 10/14/2023]
Abstract
The occurrence of antibiotic residues in diverse water sources has long been acknowledged as a potential health concern due to the emergence and spread of antibiotic-resistant bacteria and genes. However, there have been limited studies into the presence of antibiotic-metal complexes (AMCs) in real-time wastewater matrices, and their impact on wastewater microbial communities. The present work, in this regard, investigated the stability of Imipenem-metal complexes (Me = Mg (II), Ca (II), Fe (II), Cu (II), and Al (III)) with computational studies, stoichiometry with potentiometric measurements, and their antibacterial activity towards wastewater model microorganisms- Bacillus subtilis (B. subtilis) and Escherichia coli (E. Coli) by Colony Forming Unit (CFU) method. The lower energy of Imipenem-metal complexes than the parent antibiotic- Imipenem, during energy optimization using density functional (DFT) methods, revealed that metal interactions of Imipenem stabilize the drug by minimizing its energy. Further, CFU studies indicated that these complexes display higher antimicrobial activity than parent antibiotics. The electron delocalization over the entire chelated system (AMCs) reduces polarity and increases the lipophilicity of the complexes, thereby facilitating stronger interaction between AMCs and the bacterial cell membrane. Results indicate increased antibacterial activity of Imipenem-metal complexes for both E. coli and B. subtilis. The antibacterial activity, was however, more pronounced in B. subtilis, with >97% growth inhibition for metal complexes of Imipenem (at a Minimum Inhibitory Concentration of 20 nM or 6 ppb (i.e., MIC90)), for both the stoichiometric ratios (metal to ligand) ratios (M: L 1: 1 and 2: 1). All around, with increased stability and toxicity, AMCs are emerging as contaminants of concern and demand immediate attention to devise methods for their removal.
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Affiliation(s)
- Pratishtha Khurana
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada
| | - Rama Pulicharla
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada
| | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada.
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Kumari S, Thakur M, Chauhan C, Kumari M. Synthesis, characterization, biological activity and computation-based efficacy of cobalt(II) complexes of biphenyl-2-ol against SARS-CoV-2 virus. J Biomol Struct Dyn 2023:1-15. [PMID: 37990487 DOI: 10.1080/07391102.2023.2283144] [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: 07/13/2023] [Accepted: 11/06/2023] [Indexed: 11/23/2023]
Abstract
Cobalt(II) complexes of biphenyl-2-ol of composition, CoCl2-n(OC6H4C6H5-2)n(H2O)4 (where n = 1 or 2), were prepared by reacting cobaltous(II) chloride with equi- and bimolar ratios of sodium salt of biphenyl-2-ol. The structural characterization of the synthesized complexes was accomplished by NMR, FTIR, thermogravimetry (TGA), high resolution mass spectroscopy (HRMS), electronic spectroscopic techniques coupled with density functional theory (DFT). The stability of the complexes in different pH media of solvent was studied. Chemical reactivity parameters of the newly synthesized complexes, computed using DFT, indicated greater reactivity of complex 2 over complex 1 and free ligand as indicated by its low HOMO-LUMO energy gap corresponding to 1.71 eV. Molecular docking (MD) studies were carried out in order to study the binding affinities between amino acid residues of DNA duplex (PDB ID: 1BNA) and SARS-CoV-2 (PDB ID: 7T9K) with newly synthesized complexes. Complex 2 has shown promising antivirus behaviour with an inhibition constant value of 0.0423 µmol-1 with amino acid residues of SARS-CoV-2 virus. Toxicity of the complexes was predicted using ProTox-II online server. Antibacterial studies have indicated the complexes to exhibit greater efficacy than the free ligand, while the antioxidant activities have suggested them to display enhanced antioxidant behaviour as compared to reference compounds.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shalima Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Maridula Thakur
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Chetan Chauhan
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Meena Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla, India
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Rezk GN, El-Gammal OA, Alrefaee SH, Althagafi I, El-Bindary AA, El-Bindary MA. Synthesis, structural characterization, antioxidant, cytotoxic activities and docking studies of schiff base Cu(II) complexes. Heliyon 2023; 9:e21015. [PMID: 37867880 PMCID: PMC10587539 DOI: 10.1016/j.heliyon.2023.e21015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023] Open
Abstract
By combining hydrazide with 2-Acetylpyridine, a hydrazone ligand (HL) was successfully created. Several copper (II) salts have been used to create three copper (II) hydrazone complexes (acetate, sulphate, and chloride). The hydrazide ligand and its copper (II) complexes (1-3) were studied via variety of analytical techniques, including elemental analysis, electronic, infrared, UV-vis Spectrum, XRD study, thermal analysis, also molar conductivity amounts. The spectrum results indicate that in all complexes, the ligand exhibits monobasic tridentate behavior. Octahedral geometries were present in all metal complexes. The Coats-Redfern equations were used to compute and describe the dynamics properties of several steps of TGA (Ea, A, ΔH*, ΔS*, and ΔG*). Calculations using the density functional theory (DFT) were done at the molecular studio software toward examine ligands agent's and its complexes' best structures. The MCF-7 in addition to HepG-2 cell lines was resistant to tumor-inducing effects of the copper (II) chelates. The in vitro antioxidant capacities of all complexes have been estimated via DPPH free radical scavenger assays. Furthermore, zones of inhibition length accustomed to test antimicrobial effect of particular complexes in vitro towards Staphylococcus aureus (Gram positive bacteria) E. coli (Gram negative bacteria). Both absorption spectra and viscosity measurements in calf thymus DNA binding have been used to study the complexes. In order to explore docking research of copper (II) chelates, the crystallographic construction of the SARS-active CoV-2's site protein (PDB ID:6XBH) was used (COVID-19) and breast cancer distorted (PDB ID: 3hb5).
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Affiliation(s)
- Ghada N. Rezk
- Department of Chemistry, Faculty of Science, Damietta University, Damietta 34517, Egypt
| | - Ola A. El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35566, Egypt
| | - Salhah H. Alrefaee
- Department of Chemistry, Faculty of Science, Taibah University, Yanbu 30799, Saudi Arabia
| | - Ismail Althagafi
- Department of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah, Saudi Arabia
| | - Ashraf A. El-Bindary
- Department of Chemistry, Faculty of Science, Damietta University, Damietta 34517, Egypt
| | - Mohamed A. El-Bindary
- Basic Science Department, Higher Institute of Engineering and Technology, Damietta 34517, Egypt
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7
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Magdy Abbass L, Atia Sadeek S, Abd El-Raouf Aziz M, Abd-allah Zordok W, Saeed El-Attar M. Synthesis of some new nanoparticles mixed metal complexes of febuxostat in presence of 2,2′-bipyridine: Characterization, DFT, antioxidant and molecular docking activities. J Mol Liq 2023; 386:122460. [DOI: 10.1016/j.molliq.2023.122460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Kouhdareh J, Karimi-Nami R, Keypour H, Rabiei K, Alavinia S, Saremi SG, Noroozi M. Synthesis of a Au/Au NPs-PPy/l-CYs/ZIF-8 nanocomposite electrode for voltammetric determination of insulin in human blood. RSC Adv 2023; 13:24474-24486. [PMID: 37593669 PMCID: PMC10427897 DOI: 10.1039/d3ra04064j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/31/2023] [Indexed: 08/19/2023] Open
Abstract
In this work, a modified electrode named Au/Au NPs-PPy/l-CYs/ZIF-8 was designed and built and simultaneously doped into electropolymerized polypyrrole (PPy) film using cyclic voltammetry (CV). Scanning Electron Microscopy (SEM), Electrochemical Impedance Spectroscopy (EIS), and CV were used to characterize the composite films. The PPy-(ZIF-8) modified Au electrode was used to determine insulin using Square-Wave Voltammetry (SWV). It was found that the prepared zeolitic imidazolate framework-8 had excellent electrocatalytic activity towards insulin oxidation due to its unique properties. The oxidation peak current of insulin hormone increased with its concentration in the range from 1.0 to 60 nM with the linear regression equation: Ipa = 0.3421C (nM) + 3.2762 (γ = 0.998). The measurement limit was estimated to be 1 nM. While the common coexisting substances showed no interference in the response of the modified electrode to insulin, the modified electrode indicated reproducible behavior and a high level of stability during the experiments. The advantages of using these nanocomposites on the surface of modified electrodes include increased stability, good interaction between the analyte and the modified electrode, conductivity, and excellent performance due to the nanometer size of the composites. As a result, it may be particularly suitable for analytical purposes.
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Affiliation(s)
- Jamal Kouhdareh
- Faculty of Chemistry, Bu-Ali Sina University Hamedan 65174 Iran
| | - Rahman Karimi-Nami
- Department of Chemistry, Faculty of Science, University of Maragheh Maragheh Iran
| | - Hassan Keypour
- Faculty of Chemistry, Bu-Ali Sina University Hamedan 65174 Iran
| | - Khadijeh Rabiei
- Department of Chemistry, Faculty of Science, Qom University of Technology Qom Iran
| | | | | | - Mohammad Noroozi
- Center for Research and Development of Petroleum Technologies at Kermanshah, Research Institute of Petroleum Industry (RIPI) Iran
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Alkhatib FM, Alsulami HM. Synthesis, characterization, DFT calculations and biological activity of new Schiff base complexes. Heliyon 2023; 9:e18988. [PMID: 37636366 PMCID: PMC10447992 DOI: 10.1016/j.heliyon.2023.e18988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/21/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023] Open
Abstract
Schiff bases ligand (HL) was produced by condensing 4-aminobenzohydrazide with N-(4-chlorophenyl)-2-(4-formylphenoxy)acetamide. Cobalt (II), nickel (II), and copper (II) acetate and ligand are reacted to form 1:1 complexes. By using electronic spectra, magnetic susceptibility measurements, infrared data from 1H NMR, and XRD studies, the ligand and its metal complexes have been characterized. According to the spectrum data, the ligand functions as a monobasic bidentate, coordinating with the nitrogen atom of azomethine (-C[bond, double bond]N-) group and the oxygen atom of carbonyl group in enol form. An octahedral structure has been proposed for Co(II), Ni(II), and Cu(II) complexes according to magnetic and electronic spectrum analysis. Using the DFT method, the computational investigations of the ligand and its metal complexes showed the bond lengths, bond angles, and quantum chemical parameters. To determine the thermal stability and mode of thermal degradation of hydrazone ligand and its complexes, thermogravimetric analysis was approved out on the samples. Two calculated method, Horowitz-Metzger and Coats-Redfern, were used to calculate the characteristics of the composites' thermal degradation mechanisms at each step, including their breakdown kinetics. The ligand and its complexes were investigated for their cytotoxicity in vitro compared to human amnion (WISH) and epitheliod carcinoma (Hela). The Ni(II) complex showed highly inhibition against (WISH) growth (IC50 = 18.28±1.8 μM) with relationship to the produced chemicals and other common medications. The interaction between the ligand and its complexes with the genetic tumor (3hb5) receptor was examined using docking experiments.
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Affiliation(s)
- Fatmah M. Alkhatib
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, P.O. Box 715, Saudi Arabia
| | - Hajar Mubashir Alsulami
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, P.O. Box 715, Saudi Arabia
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10
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Ismail BA, Abd El-Wahab ZH, Ali OAM, Nassar DA. Synthesis, structural characterization, and antimicrobial evaluation of new mononuclear mixed ligand complexes based on furfural-type imine ligand, and 2,2'-bipyridine. Sci Rep 2023; 13:9196. [PMID: 37280267 DOI: 10.1038/s41598-023-36060-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/29/2023] [Indexed: 06/08/2023] Open
Abstract
The present investigation goal was to investigate the chemistry of four new mononuclear mixed ligand Fe(III), Co(II), Cu(II), and Cd(II) complexes constructed from furfural-type imine ligand (L), and the co ligand 2,2'-bipyridine in addition to assessing their antimicrobial activity against some bacterial, and fungi strains. The structure of the complexes was interpreted by different spectroscopic techniques such as MS, IR, 1H NMR, UV-Vis, elemental analysis, TG-DTG, conductivity, and magnetic susceptibility measurements. The correlation of all results revealed that ligand (L) acts as a neutral ONNO tetradentate whereas the co ligand acts as a neutral NN bidentate. The coordination of the ligands with the metal ions in a molar ratio of 1:1:1 leads to formation of an octahedral geometry around the metal ions. The octahedral geometry has been validated and optimized by DFT analysis. Conductivity data showed the electrolytic nature of all complexes. The thermal stability of all complexes was deduced in addition to evaluating some thermodynamic, and kinetic parameters using Coats-Redfern method. Furthermore, all complexes in comparison to their parent ligands were tested for their biological potency against some pathogenic bacterial, and fungi strains using the paper disk diffusion method. [CdL(bpy)](NO3)2 complex revealed the highest antimicrobial activity.
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Affiliation(s)
- Basma A Ismail
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Zeinab H Abd El-Wahab
- Chemistry Department, Faculty of Science (Girl's), Al-Azhar University, Youssif Abbas St., P.O. Box 11754, Nasr City, Cairo, Egypt.
| | - Omyma A M Ali
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Doaa A Nassar
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
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Adhikari J, Bhattarai A, Chaudhary NK. Data analysis for SEM-EDX, thermokinetics, surfactant, and corrosion inhibition activity of Co(II) and Zn(II) complexes of pyrrole-based surfactant ligand. Data Brief 2023; 48:109124. [PMID: 37122922 PMCID: PMC10139897 DOI: 10.1016/j.dib.2023.109124] [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: 01/15/2023] [Revised: 03/21/2023] [Accepted: 03/30/2023] [Indexed: 05/02/2023] Open
Abstract
This manuscript reports a dataset for the scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX), surfactant properties, thermokinetics, and corrosion inhibition activity of [[Co(HL)2.2H2O] Cl2.H2O]] (1) and [[Zn(HL)2.Cl] Cl.3H2O]] (2) complexes with surfactant-based Schiff base ligand (HL). It contains analyzed data related to thermokinetics, such as the activation energy (E*), entropy change (∆S*), enthalpy change (∆H*), and free energy change (∆G*) of HL and metal complexes. It also contains the SEM micrographs and EDX images of the studied ligand and metal complexes. A detailed analysis of the critical micelle concentration (CMC) data and figures illustrating the surfactant behavior of the synthesized complexes are presented in this article. The data for the corrosion inhibition activity of all synthesized compounds are also included. The dataset is related to the research article entitled "Bioinorganic interest on Co(II) and Zn(II) complexes of pyrrole-based surfactant ligand: Synthesis, characterization, and in silico-ADME study".
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Nassar DA, Ali OA, Shehata MR, Sayed AS. Spectroscopic investigation, thermal behavior, catalytic reduction, biological and computational studies of novel four transition metal complexes based on 5-methylthiophene Schiff base type. Heliyon 2023; 9:e16973. [PMID: 37332957 PMCID: PMC10272477 DOI: 10.1016/j.heliyon.2023.e16973] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/20/2023] Open
Abstract
Four new complexes prepared from 5-Methyl-2-carboxaldehyde-thiophene and 2,6-pyridinediamine with cobalt, nickel, copper and cadmium ions have been synthesized because of the significance of these complexes in pharmacological research and catalytic reduction. The prepared compounds were characterized using elemental analysis, mass, UV-visible, NMR and FTIR spectroscopy, as well as molar conductance, magnetic susceptibility measurements, fluorescence properties and TGA analysis. The stoichiometry mode was confirmed as 1:1 (metal: ligand) for Co, Ni and Cu complexes and 1:2 (metal: ligand) for Cd complex according to the results of the elemental and spectral studies. Furthermore, the thermal stability and luminescence properties of complexes have been studied. Thermal studies confirmed the presence of water molecules. The thermodynamic properties of the complexes were measured via the Coats-Redfern procedure. The geometric structures of the complexes were found to be octahedral around the metal ions. The optical energy gaps (Eopt) vary between 2.92 and 3.71 eV indicating that these compounds can be used as selective absorbing solar energy in photovoltaic applications. In the presence of NaBH4, the greatest reduction efficiency for the conversion of 2-NP to 2-AP was discovered to be 73-91% within 15-25 min. In vitro, high antifungal and antibacterial activity was shown by complexes than the ligand alone. The Cd(II) complex was shown to have greater activity than all of the examined microorganisms when compared to the reference drug in addition it had 4.94 μg/ml minimal inhibitory concentration against "S. aureus", "B. subtilis", and "E. coli". The bond angles, bond lengths, and quantum chemical factors of the ligand and complexes were shown in the molecular modeling using the DFT approach. The studied compounds' binding modes were confirmed using the Gaussian 09 program.
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Affiliation(s)
- Doaa A. Nassar
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Omyma A.M. Ali
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | | | - Abeer S.S. Sayed
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
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Synthesis, spectral, DFT, intrinsic constant of DNA binding and antioxidant activity of vanadyl (IV)2+ complexes of a symmetrical bis thiosemicarbazides. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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14
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A Comprehensive Approach to Derivatization: Elemental Composition, Biochemical, and In Silico Studies of Metformin Derivatives Containing Copper and Zinc Complexes. Molecules 2023; 28:molecules28031406. [PMID: 36771070 PMCID: PMC9919699 DOI: 10.3390/molecules28031406] [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: 12/26/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
The current study was designed to synthesize, characterize, and screen the molecular and biological activities of different metformin derivatives that possess potent antidiabetic potential with minimal side-effects. Metformin-based derivatives containing the metal complexes Cu II (MCu1-MCu9) and Zn II (MZn1-MZn9) were generated using aromatic aldehydes and ketones in a template process. The novel metal complexes were characterized through elemental analysis, physical state, melting point, physical appearance, Fourier-transform infrared (FTIR) spectroscopy, UV/visible (UV/Vis) spectroscopy, 1H nuclear magnetic resonance (NMR) spectroscopy, and 13C-NMR spectroscopy. Screening for inhibitory activity against the enzymes α-amylase and α-glucosidase, and molecular simulations performed in Schrödinger were used to assess the synthesized derivatives' biological potential. Met1, Met2, Met3, and Met8 all displayed activities that were on par with the reference in an enzymatic inhibition assay (amylase and glucosidase). The enzyme inhibition assay was corroborated by molecular simulation studies, which also revealed a competitive docking score compared to the gold standard. The Swiss ADME online web server was utilized to compute ADME properties of metformin analogues. Lipinski's rule of five held true across all derivatives, making it possible to determine the percentage of absorption. Metformin derivatives showed significant antidiabetic activities against both targeted enzymes, and the results of this work suggest that these compounds could serve as lead molecules for future study and development.
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Alka, Gautam S, Kumar R, Singh P, Gandhi N, Jain P. Pharmacological aspects of Co(II), Ni(II) and Cu(II) schiff base complexes: An insight. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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16
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Kumar S, Choudhary M. Structural and theoretical investigations, Hirshfeld surface analysis and anti-SARS CoV-2 of nickel (II) coordination complex. J Biomol Struct Dyn 2023; 41:402-422. [PMID: 34842499 DOI: 10.1080/07391102.2021.2006089] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A nickel(II) Schiff base complex, [Ni(L)(DMF)](1), was synthesized by treating NiCl2.6H2O with an ONS-donor Schiff base ligand(H2L) derived from the condensation 3,5-Dichlorosalicylaldehyde and 4,4-Dimethyl-3-thiosemicarbazide in DMF. The geometry around the center metal ion in [Ni(L)(DMF)](1) was square planar as revealed by the data collection from diffraction studies. DFT calculations were performed on the complex to get a structure-property relationship. Hirshfeld surface analysis was also carried out in the crystal structure of nickel (II) Schiff base complex. Additionally, inspiring from recent developments to find a potential inhibitor for SARS-CoV-2 virus, we have also performed molecular docking study of [Ni(L)(DMF)](1) to see if our novel complex show affinity for main protease (Mpro) of SARS-CoV-2 Mpro (PDB ID: 6LZE). Interestingly, the results are found quite encouraging where the binding affinity and inhibition constant was found to be -6.6 kcal/mol and 2.358 µM, respectively, for the best docked confirmation of complex [Ni(L)(DMF)](1) with Mpro protein. This binding affinity is reasonably well as compared to recently known antiviral drugs. For instance, the binding affinity of complex [Ni(L)(DMF)](1) is found to be better than that of recently docking results of anti-SARS-CoV-2 drugs like chloroquine (-6.293 kcal/mol), hydroxychloroquine (-5.573 kcal/mol) and remdesivir (-6.352 kcal/mol) when targeted to the active-site of SARS-CoV-2 Mpro. Besides this, molecular docking against G25K GTP-nucleotide binding protein (PDB ID: 1A4R) was also studied. We believe that current results can intrigue not only for the biomedical community but also for the materials chemists who are engaged to explore the application coordination complexes. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sunil Kumar
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
| | - Mukesh Choudhary
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
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Jamil YM, Al-Azab FM, Al-Selwi NA, Alorini T, Al-Hakimi AN. Preparation, physicochemical characterization, molecular docking and biological activity of a novel schiff-base and organophosphorus schiff base with some transition metal(II) ions. MAIN GROUP CHEMISTRY 2023. [DOI: 10.3233/mgc-220101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The two synthesis of Schiff base SB (Indole-3-carboxalidene-1-phenylsemicarbazide) and organophosphorus Schiff base OPSB (Indole-3-carboxalidene diphenylphosphate-1-phenylsemicarbazide) have been prepared and characterized by elemental analyses, IR, 1H-NMR, 13C-NMR, UV–Vis and XRD. A series of complexes of the type [M(SB)2Cl2].2H2O and [M(OPSB)Cl.(H2O)2].Cl, where M = Cu(II), Ni(II) and Co(II) have been synthesized and the chemical structures of them were established by magnetic susceptibility, conductance measurements, elemental analyses, IR, UV–Vis. These results suggest that the metal complexes have octahedral geometry. X-ray powder diffraction analysis of ligands and SB complexes indicate that they are crystalline in nature and within nano range. The molecular docking of [Co(OPSB)Cl.(H2O)2].Cl is discussed using MOE software to understand the binding pattern of the investigated compound towards target proteins Bacillus subtilis (PDB ID: 2RHL), Staphylococcus aureus (PDB ID: 4URM), Escherichia coli (PDB ID: 4PRV), Pseudomonas aeruginosa (PDB ID: 4JVI). All compounds have been evaluated for their antimicrobial. The ligands and OPSB complexes showed high antioxidant activity.
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Affiliation(s)
- Yasmin M.S. Jamil
- Department of Chemistry, Faculty of Science, Sana’a University, Yemen
| | - Fathi M. Al-Azab
- Department of Chemistry, Faculty of Science, Sana’a University, Yemen
| | | | - Thamer Alorini
- Department of Chemistry, College of Sciences, Qassim University, Buraidah, Saudi Arabia
| | - Ahmed N. Al-Hakimi
- Department of Chemistry, College of Sciences, Qassim University, Buraidah, Saudi Arabia
- Department of Chemistry, College of Sciences, Ibb University, Ibb, Yemen
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Sangwan V, Singh DP. Macrocyclic complexes as potent biomaterial: an experimental study on synthesis, spectroscopic analysis, antioxidant and antimicrobial activity. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02716-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Basaran E, Gamze Sogukomerogullari H, Cakmak R, Akkoc S, Taskin-Tok T, Köse A. Novel chiral Schiff base Palladium(II), Nickel(II), Copper(II) and Iron(II) complexes: Synthesis, characterization, anticancer activity and molecular docking studies. Bioorg Chem 2022; 129:106176. [PMID: 36209564 DOI: 10.1016/j.bioorg.2022.106176] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 11/02/2022]
Abstract
In this study, two chiral Schiff base ligands (L1 and L2) were synthesized from the condensation reaction of (S)-2-amino-3-phenyl-1-propanol with 2-hydroxybenzaldehyde and 2-hydroxy-1-naphthaldehyde as metal precursors for the preparation of transition metal complexes with Pd(II), Fe(II), Ni(II) and Cu(II). The compounds were characterized by using X-ray (for L1-Pd(II)), NMR, FT-IR, UV-Vis, magnetic susceptibility, molar conductivity, and elemental analysis. The in vitro cytotoxic effects of ligands (L1 and L2) and their metal complexes on colon cancer cells (DLD-1), breast cancer cells (MDA-MB-231) and healthy lung human cell lines were investigated by using the 3-(4,5-dimethylthiazol-2-yl)-2,5‑diphenyl tetrazolium bromide (MTT) assay. Among the synthesized compounds, L1-Pd(II) was particularly found to be the most potent anticancer drug candidate in this series with IC50 values of 4.07, and 9.97 µM in DLD-1 and MDA-MB-231 cell lines, respectively. In addition, molecular docking results indicate that Glu122, Asn103, Ala104, Lys126, Phe114, Leu123, and Lys126 amino acids are the binding site of the colon cancer antigen protein, in which the most active complex, L1-Pd(II) can inhibit the current target.
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Affiliation(s)
- Eyüp Basaran
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Batman University, Batman, Turkey.
| | - Hatice Gamze Sogukomerogullari
- Medical Services and Techniques Department, Vocational School of Health Services, Gaziantep University, Gaziantep, Turkey.
| | - Resit Cakmak
- Medical Laboratory Techniques Program, Vocational School of Health Services, Batman University, Batman, Turkey
| | - Senem Akkoc
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Süleyman Demirel University, Isparta, Turkey; Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - Tugba Taskin-Tok
- Department of Chemistry, Faculty of Science and Arts, Gaziantep University, Gaziantep, Turkey; Department of Bioinformatics and Computational Biology, Institute of Health Sciences, Gaziantep University, Gaziantep, Turkey
| | - Ayşegül Köse
- Department of Property Protection and Safety, Elbistan Vocational School, Kahramanmaras Istiklal University, Kahramanmaras, Turkey
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Rajimon K, Elangovan N, Amir Khairbek A, Thomas R. Schiff bases from chlorine substituted anilines and salicylaldehyde: Synthesis, characterization, fluorescence, thermal features, biological studies and electronic structure investigations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Gopi P, Singh S, Islam MM, Yadav A, Gupta N, Pandya P. Thermodynamic and structural profiles of multi-target binding of vinblastine in solution. J Mol Recognit 2022; 35:e2989. [PMID: 36054496 DOI: 10.1002/jmr.2989] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 01/05/2023]
Abstract
Structural information about drug-receptor interactions is paramount in drug discovery and subsequent optimization processes. Drugs can bind to multiple potential targets as they contain common chemical entities in their structures. Understanding the details of such interactions offer possibilities for repurposing and developing potent inhibitors of disease pathways. Vinblastine (VLB) is a potent anticancer molecule showing multiple receptor interactions with different affinities and degrees of structural perturbations. We have investigated the multi-target binding profile of VLB with DNA and human serum albumin (HSA) in a dynamic physiological environment using spectroscopic, molecular dynamics simulations, and quantum mechanical calculations to evaluate the structural features, mode, ligand and receptor flexibility, and energetics of complexation. These results confirm that VLB prefers to bind in the major groove of DNA with some inclination toward Thymidine residue and the TR-5 binding site in HSA with its catharanthine half making important contacts with both the receptors. Spectroscopic investigation at multiple temperatures has also proved that VLB binding is entropy driven indicating the major groove and TR-5 binding site of interaction. Finally, the overall binding is facilitated by van der Waals contacts and a few conventional H-bonds. VLB portrays reasonable conformational diversity on binding with multiple receptors.
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Affiliation(s)
- Priyanka Gopi
- Amity Institute of Forensic Sciences, Amity University, Uttar Pradesh, Noida, India
| | - Shweta Singh
- Amity Institute of Forensic Sciences, Amity University, Uttar Pradesh, Noida, India
| | | | - Akankasha Yadav
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Neelima Gupta
- Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Prateek Pandya
- Amity Institute of Forensic Sciences, Amity University, Uttar Pradesh, Noida, India
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Ranjitha N, Krishnamurthy G, Bhojya Naik H, Pari M, Afroz L, Sumadevi K, Manjunatha M. Structural elucidation, voltammetric detection of dopamine, molecular docking and biological inspection of novel 4-aminoantipyrine derived Schiff bases in Co (II), Ni (II) and Cu (II) complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Bicomponent hydrogels assisted templating synthesis of hierarchically porous ZIF-8 for efficient antibacterial applications. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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A New Potential ONO Schiff-Base Ligand and its Cu(II), Zn(II) and Cd(II) Complexes: Synthesis, Structural Elucidation, Theoretical and Bioactivity Studies. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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El-Shwiniy WH, El-Desoky SI, Alrabie A, Abd El-Wahaab B. Spectrophotometric determination of Zr(IV), Hg(II) and U(VI) in solution with their analytical applications: Structural characterization and molecular docking of the solid complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121400. [PMID: 35609395 DOI: 10.1016/j.saa.2022.121400] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/11/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Spectrophotometry was used to determine trace amounts of Zirconium(IV), Mercury(II) and Uranium(VI) in environmental, biological, pharmaceutical and industrial samples. The determination depend on the complexation reactions between albendazole reagent and metal ions [Zr(IV), Hg(II) and U(VI)] at 555 nm, 485 nm and 510 nm, respectively. The experimental conditions were explored to reach the optimum conditions for albendazole-metal ions interaction, including detection of a suitable wavelength, medium (pH), reagent concentration, surfactants effect, reaction time and temperature. Under optimum conditions, the complexes displayed apparent molar absorptivities of 0.8350 × 104, 0.6210 × 104 and 0.7012 × 104 L mol-1 cm-1; Sandell's sensitivity of 0.01092, 0.03230 and 0.03394 µg cm-2 and with linearity ranges of 1.0-120.0, 3.0-200.0 and 1.0-150.0 µg mL-1 for the developed methods, respectively. Furthermore, Elemental analysis, thermal analysis (TGA, DTG), IR, 1HNMR, spectroscopies, electrical molar conductivity and magnetic moment measurements were used to determine the structures and characteristics of the complexes. A careful examination of the IR spectra revealed that the ligand interacted with all of the metal ions described as a bidentate via the oxygen of the carbonyl of the ester moiety and the nitrogen atom of the heterocyclic CN group. An octahedral geometry for Zr(IV), Hg(II) and U(VI) complexes has been postulated based on magnetic and electronic spectrum data. The band gap values indicated that these complexes were semi-conductors and belong to the same class of extremely effective solar materials. The albendazole ligand and its complexes have been biologically tested against a variety of bacterial and fungal strains, and molecular docking studies have been conducted to evaluate the optimal binding site and its inhibitory action.
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Affiliation(s)
- Walaa H El-Shwiniy
- Faculty of Science, Chemistry Department, Zagazig University, Zagazig 44519, Egypt; Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia
| | - Sameh I El-Desoky
- Regional Joint Laboratory, Directorate of Health Affairs, the Arab Republic of Egypt, Zagazig, Egypt
| | - Ali Alrabie
- Chemistry Department, Faculty of Education Albaydha, Albaydha University, Yemen
| | - Badr Abd El-Wahaab
- Faculty of Science, Chemistry Department, Zagazig University, Zagazig 44519, Egypt.
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Refat MS, Albogami B, Adam AMA, Saad HA, Alsuhaibani AM, Miyan L, Hegab MS. Charge-transfer chemistry of two corticosteroids used adjunctively to treat COVID-19. Part II: The CT reaction of hydrocortisone and dexamethasone donors with TCNQ and fluoranil acceptors in five organic solvents. J Mol Liq 2022; 363:119878. [PMID: 35880006 PMCID: PMC9300052 DOI: 10.1016/j.molliq.2022.119878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 12/23/2022]
Abstract
Hydrocortisone (termed as D1) and dexamethasone (termed as D2) are corticosteroids currently used to treat COVID-19. COVID-19 is a disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Exploring additional chemical properties of drugs used in the treatment protocols for COVID-19 could help scientists alike improve these treatment protocols and potentially even the vaccines (i.e., Janssen, Moderna, AstraZeneca, Pfizer-BioNTech). In this work, the charge-transfer (CT) properties of these two corticosteroids (D1 and D2) with two universal acceptors: 7,8,8-tetracyanoquinodimethane (termed as TCNQ) and fluoranil (termed as TFQ) in five different solvents were investigated. The examined solvents were MeOH, EtOH, MeCN, CH2Cl2, and CHCl3. The CT interactions formed stable corticosteroid CT complexes in all examined solvents. Several spectroscopic parameters were derived, and the oscillator strength (f) and transition dipole moment (μe.g.) values revealed that the interaction between the investigated corticosteroids with TCNQ acceptor is much stronger than their interaction with TFQ acceptor. The CT interactions were proposed to process via n → π* transition.
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Affiliation(s)
- Moamen S Refat
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Bander Albogami
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Abdel Majid A Adam
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hosam A Saad
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Amnah Mohammed Alsuhaibani
- Department of Physical Sport Science, College of Education, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Lal Miyan
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002(UP), India
| | - Mohamed S Hegab
- Deanship of Supportive Studies (D.S.S.), Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
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Ramana PV, Krishna YR, Mouli KC. Experimental FT-IR and UV–Vis spectroscopic studies and molecular docking analysis of anti-cancer drugs Exemestane and Pazopanib. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133051] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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28
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Singh A, Gogoi HP, Barman P, Das A, Pandey P. Tetracoordinated ONNO donor purine based Schiff base and its metal complexes: Synthesis, characterization, DNA binding, theoretical studies, and bioactivities. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anmol Singh
- Department of Chemistry National Institute of Technology Silchar Assam India
| | - Himadri Priya Gogoi
- Department of Chemistry National Institute of Technology Silchar Assam India
| | - Pranjit Barman
- Department of Chemistry National Institute of Technology Silchar Assam India
| | - Ankita Das
- Department of Microbiology Assam University Silchar Assam India
| | - Piyush Pandey
- Department of Microbiology Assam University Silchar Assam India
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Adam AMA, Saad HA, Refat MS, Hegab MS, Al-Hazmi GH, Mohammed Alsuhaibani A, Mohamed H. The derivation and characterization of quinine charge-transfer complexes with inorganic and organic acceptors in liquid and solid form. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis of Cu(II)-Caffeine Complex as Potential Therapeutic Agent: Studies on Antioxidant, Anticancer and Pharmacological Activities. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Development of Metal Complexes for Treatment of Coronaviruses. Int J Mol Sci 2022; 23:ijms23126418. [PMID: 35742870 PMCID: PMC9223400 DOI: 10.3390/ijms23126418] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/29/2022] [Accepted: 06/07/2022] [Indexed: 02/04/2023] Open
Abstract
Coronavirus disease (SARS-CoV-2) is a global epidemic. This pandemic, which has been linked to high rates of death, has forced some countries throughout the world to implement complete lockdowns in order to contain the spread of infection. Because of the advent of new coronavirus variants, it is critical to find effective treatments and vaccines to prevent the virus’s rapid spread over the world. In this regard, metal complexes have attained immense interest as antibody modifiers and antiviral therapies, and they have a lot of promise towards SARS-CoV-2 and their suggested mechanisms of action are discussed, i.e., a new series of metal complexes’ medicinal vital role in treatment of specific proteins or SARS-CoV-2 are described. The structures of the obtained metal complexes were fully elucidated by different analytical and spectroscopic techniques also. Molecular docking and pharmacophore studies presented that most of complexes studied influenced good binding affinity to the main protease SARS-CoV-2, which also was attained as from the RCSB pdb (Protein Data Bank) data PDB ID: 6 W41, to expect the action of metal complexes in contradiction of COVID-19. Experimental research is required to determine the pharmacokinetics of most of the complexes analyzed for the treatment of SARS-CoV-2-related disease. Finally, the toxicity of a metal-containing inorganic complex will thus be discussed by its capability to transfer metals which may bind with targeted site.
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Mahmoud NH, Elsayed GH, Aboelnaga A, Fahim AM. Spectroscopic studies, DFT calculations, Cytotoxicity activity, docking stimulation of novel metal complexes of Schiff base ligand of isonicotinohydrazide derivative. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6697] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nelly H. Mahmoud
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain‐Shams University Cairo Egypt
| | - Ghada H. Elsayed
- Department of Hormones, National Research Center (NRC) Giza Egypt
- Stem Cells lab, Center of Excellence for Advanced Sciences, National Research Center (NRC) Giza Egypt
| | - Asmaa Aboelnaga
- Chemistry Department, Faculty of Women for Arts, Science and Education, Ain‐Shams University Cairo Egypt
| | - Asmaa M. Fahim
- Department of Green chemistry, National Research Center (NRC) Giza Egypt
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Synthesis, Characterization and Biological Activities of New Schiff Base Compound and Its Lanthanide Complexes. Pharmaceuticals (Basel) 2022; 15:ph15040454. [PMID: 35455451 PMCID: PMC9027428 DOI: 10.3390/ph15040454] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 01/13/2023] Open
Abstract
The thermal condensation of 3-(2-Furyl)acrolein with 2-Amino-6-ethoxybenzothiazole generated a new Schiff base, (1E,2E)-N-(6-ethoxybenzo[d]thiazol-2-yl)-3-(furan-2-yl)prop-2-en-1-imine (L), with general formula of C16H14N2O2S. Also, a series of lanthanide complexes of gadolinium, samarium, and neodymium (La–Lc) were synthesized utilizing acetonitrile as the solvent and triethylamine as a buffer and catalyst. Based on elemental analysis, mass spectroscopy, and FTIR analysis, all of the Bis-(1E,2E)-N-(6-ethoxybenzo[d]thiazol-2-yl)-3-(furan-2-yl)prop-2-en-1-iminetri-nitratolanthanide(III) complexes with the general formula [LnL2(NO3)3]·H2O are solids with a 2:1 molar ratio (ligand: metal). Based on conductivity estimates, they are nonelectrolytes and monoatomic paramagnetic according to the magnetic moment measurements, and one mole of lattice water was found after thermal gravimetric measurements and FTIR analysis. Therefore, the lanthanide complexes show a ten-coordination structure with a deformed bicapped square antiprismatic. The Schiff base and its complexes were screened for their antimicrobial, antifungal, antioxidant, and antitumor properties. Their antimicrobial and antifungal activities were strong, and they also produced good antioxidant and antitumor effects.
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Oliaei S, Habibi D, Heydari S, Karamian R, Ranjbar N. Design, preparation, biological investigations and application of a benzoguanamine-based nickel complex for the synthesis of benzimidazoles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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36
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Singh G, Diksha, Mohit, Suman, Sushma, Devi A, Gupta S, Espinosa-Ruíz C, Angeles Esteban M. Pyridine derived organosilatranes and their silica nanoparticles as “Turn-on” fluorescence sensor for selective detection of Zn2+ ions and their cytotoxicity evaluation. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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37
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Adam AMA, Saad HA, Atta A, Alsawat M, Hegab MS, Refat MS, Altalhi TA, Alosaimi E, Younes AA. Usefulness of charge-transfer interaction between urea and vacant orbital acceptors to generate novel adsorbent material for the adsorption of pesticides from irrigation water. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118188] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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38
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Damena T, Zeleke D, Desalegn T, Demissie TB, Eswaramoorthy R. Synthesis, Characterization, and Biological Activities of Novel Vanadium(IV) and Cobalt(II) Complexes. ACS OMEGA 2022; 7:4389-4404. [PMID: 35155932 PMCID: PMC8829937 DOI: 10.1021/acsomega.1c06205] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/18/2022] [Indexed: 05/08/2023]
Abstract
Herein, we report novel Co(II) and V(IV) complexes synthesized from an (E)-2-(((2-((2-hydroxyethyl)amino)quinolin-3-yl)methylene)amino)ethan-1-ol ligand (L), cobalt(II) chloride hexahydrate, and vanadyl(IV) sulfate in methanolic solutions. The ligand and the complexes were characterized by 1H NMR spectroscopy,13C NMR spectroscopy, UV-visible spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), mass spectroscopy (MS), thermal analysis, and molar conductance. The FT-IR spectral data showed that the ligand adopted a tridentate fashion when binding with the metal ions via the nitrogen atoms of the imine (C=N) and amine (N-H), and the oxygen atom of the hydroxyl group (O-H). The PXRD and SEM results indicated that the complexes are amorphous in nature. The density functional theory (DFT) calculated absorption and IR spectra agree very well with the corresponding experimental results. The antibacterial activities of the free ligand and its complexes were evaluated using a paper disk diffusion method. The complexes have better percent activitiy index than the free ligand. The cobalt complex exhibited a more recognizable antibacterial activity than the vanadium complex, specifically against Pseudomonas aeruginosa with a mean inhibition zone of 18.62 ± 0.19 mm, when compared with the positive control, ciprofloxacin, with a mean inhibition zone of 22.98 ± 0.08 mm at the same concentration. Furthermore, the antioxidant activities of the free ligand and its metal complexes were also determined in vitro using 2,2-diphenyl-1-picrylhydrazyl. The ligand exhibited less in vitro antioxidant activity than its transition metal complexes, in which the cobalt complex has a better antioxidant activity with half-inhibitory concentrations (IC50 of 16.01 μg/mL) than the ligand and the vanadium complex. Quantum molecular descriptors from the DFT calculations further support the experimental results. Molecular docking analysis also shed more light on the biological activities of the novel cobalt and vanadium complexes.
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Affiliation(s)
- Tadewos Damena
- Department
of Applied Chemistry, Adama Science and
Technology University, P.O.Box 1888, Adama 1888 Ethiopia
| | - Digafie Zeleke
- Department
of Applied Chemistry, Adama Science and
Technology University, P.O.Box 1888, Adama 1888 Ethiopia
- Department
of Chemistry, Jigjiga University, P.O.Box 1020, Jigjiga 1020, Ethiopia
| | - Tegene Desalegn
- Department
of Applied Chemistry, Adama Science and
Technology University, P.O.Box 1888, Adama 1888 Ethiopia
| | - Taye B. Demissie
- Department
of Chemistry, University of Botswana, Notwane Rd, P/bag UB 00704 Gaborone, Botswana
| | - Rajalakshmanan Eswaramoorthy
- Department
of Biomaterials, Saveetha Dental College and Hospitals, Saveetha Institute
of Medical and Technical Sciences, Saveetha
University, Chennai 602117, India
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39
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Synthesis and biological evaluation of a new chalconate Co (II/III) complex with cytotoxic activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Arkas M, Anastopoulos I, Giannakoudakis DA, Pashalidis I, Katsika T, Nikoli E, Panagiotopoulos R, Fotopoulou A, Vardavoulias M, Douloudi M. Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:445. [PMID: 35159790 PMCID: PMC8838811 DOI: 10.3390/nano12030445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 11/17/2022]
Abstract
Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched, and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations in their interior renders them ideal reaction media. In this framework, they are applied in many environmentally benign implementations. One of the most important among them is water purification through pollutant decomposition. Simple and composite catalysts and photo-catalysts containing dendritic polymers and applied in water remediation will be discussed jointly with some unconventional solutions and prospects.
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Affiliation(s)
- Michael Arkas
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
| | - Ioannis Anastopoulos
- Department of Agriculture, University of Ioannina, UoI Kostakii Campus, 47040 Arta, Greece;
| | | | - Ioannis Pashalidis
- Environmental & Radioanalytical Chemistry Lab, Department of Chemistry, University of Cyprus, Nicosia 1678, Cyprus;
| | - Theodora Katsika
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
| | - Eleni Nikoli
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
| | - Rafael Panagiotopoulos
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
| | - Anna Fotopoulou
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
| | | | - Marilina Douloudi
- Demokritos National Centre for Scientific Research, Institute of Nanoscience and Nanotechnology, 15341 Athens, Greece; (T.K.); (E.N.); (R.P.); (A.F.)
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41
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Kavitha B, Sravanthi M, Saritha Reddy P. Studies on DNA binding, cleavage, molecular docking, antimicrobial and anticancer activities of Cr(III), Fe(III), Co(II) and Cu(II) complexes of
o
‐vanillin and fluorobenzamine Schiff base ligand. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6531] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Bengi Kavitha
- Department of Chemistry Osmania University College for Women Hyderabad India
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42
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El‐Bindary MA, El‐Bindary AA. Synthesis, characterization, DNA binding, and biological action of dimedone arylhydrazone chelates. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6576] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mohamed A. El‐Bindary
- Basic Science Department Higher Institute of Engineering and Technology Damietta Egypt
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Farajzadeh N, Aftab J, Yenilmez HY, Özdemir S, Gonca S, Altuntas Bayir Z. The design and Synthesis of Metallophthalocyanine-Gold Nanoparticle Hybrids as Biological Agents. NEW J CHEM 2022. [DOI: 10.1039/d2nj00484d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study presents the synthesis of 4-2-(4-ethynyl-N,N-dimethylaniline)pthalonitrile (1) and its new peripherally tetra-substituted metal phthalocyanines {M= Co (2), Zn (3)}. Characterization of the prepared compounds was carried out by performing...
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Bengi K, Maddikayala S, Pulimamidi SR. DNA binding, cleavage, docking, biological and kinetic studies of Cr(III), Fe(III), Co(II) and Cu(II) complexes with ortho‐vanillin Schiff base derivative. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Kavitha Bengi
- Department of Chemistry, University College for Women Osmania University Hyderabad Telangana State India
| | - Sravanthi Maddikayala
- Department of Chemistry, University College for Women Osmania University Hyderabad Telangana State India
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Melhi S, Bedair MA, Alosaimi EH, Younes AAO, El-Shwiniy WH, Abuelela AM. Effective corrosion inhibition of mild steel in hydrochloric acid by newly synthesized Schiff base nano Co( ii) and Cr( iii) complexes: spectral, thermal, electrochemical and DFT (FMO, NBO) studies. RSC Adv 2022; 12:32488-32507. [PMID: 36425733 PMCID: PMC9661184 DOI: 10.1039/d2ra06571a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Two new cobalt(ii) and chromium(iii) complexes were synthesized and characterized by FT-IR, 1HNMR, UV, elemental analysis, TGA, conductivity, XRD, SEM, and magnetic susceptibility measurements. Structural analysis revealed a bi-dentate chelation and octahedral geometry for the synthesized complexes. The optical band gap of the Co(ii)-L and Cr(iii)-L complexes was found to be 3.00 and 3.25 eV, respectively revealing semiconducting properties. The X-ray diffraction patterns showed nano-crystalline particles for the obtained complexes. In addition, the synthesized metal complexes were examined as corrosion inhibitors for mild steel in HCl solution. The electrochemical investigations showed a maximum inhibition efficiency of 96.60% for Co(ii)-L and 95.45% for Cr(iii)-L where both complexes acted as mixed-type inhibitors. Frontier Molecular orbital (FMO) and Natural bond orbital (NBO) computations showed good tendency of the ligand to donate electrons to the metal through nitrogen atoms while the resultant complexes tended to donate electrons to mild steel more effectively through oxygen atoms and phenyl groups. A comparison between experimental and theoretical findings was considered through the discussion. Two Co(ii) and Cr(iii) complexes were synthesized, characterized and examined as corrosion inhibitors. The electrochemical data showed high inhibition efficiencies with mixed-type behavior. FMO and NBO were considered for the computational analysis.![]()
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Affiliation(s)
- Saad Melhi
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Mahmoud A. Bedair
- College of Science and Arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi Arabia
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
| | - Eid H. Alosaimi
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Ayman A. O. Younes
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Walaa H. El-Shwiniy
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ahmed M. Abuelela
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
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Kumar S, Choudhary M. Structure-based design and synthesis of copper( ii) complexes as antivirus drug candidates targeting SARS CoV-2 and HIV. NEW J CHEM 2022. [DOI: 10.1039/d2nj00703g] [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
This paper describes the structure-based design and synthesis of two novel square-planar trans-N2O2 Cu(ii) complexes [Cu(L1)2] (1) and [Cu(L2)2] (2) of 2-((Z)-(4-methoxyphenylimino)methyl)-4,6-dichlorophenol (L1H) and 2-((Z)-(2,4-dibromophenylimino)methyl)-4-bromophenol (L2H) as potential inhibitors against the main protease of the SARS-CoV-2 and HIV viruses.
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Affiliation(s)
- Sunil Kumar
- Department of Chemistry, National Institute of Technology Patna, Patna-800005, Bihar, India
| | - Mukesh Choudhary
- Department of Chemistry, National Institute of Technology Patna, Patna-800005, Bihar, India
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47
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Kumar S, Choudhary M. Synthesis and characterization of novel copper(ii) complexes as potential drug candidates against SARS-CoV-2 main protease. NEW J CHEM 2022. [DOI: 10.1039/d2nj00283c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Two novel copper(ii) Schiff base complexes, [Cu(L1)2] (1) and [Cu(L2)(CH3OH)(Cl)] (2) of [(Z)-(5-chloro-2-((3,5-dichloro-2-hydroxybenzylidene)amino)phenyl)(phenyl)methanone (L1H) and (Z)-(2((5-bromo-2-hydroxybenzylidene)amino-5-chlorophenyl)(phenyl)methanone)(L2H)], have been designed, synthesized and characterized.
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Affiliation(s)
- Sunil Kumar
- Department of Chemistry, National Institute of Technology Patna, Patna-800005 (Bihar), India
| | - Mukesh Choudhary
- Department of Chemistry, National Institute of Technology Patna, Patna-800005 (Bihar), India
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El-Gammal OA, El-Bindary AA, Sh. Mohamed F, Rezk GN, El-Bindary MA. Synthesis, characterization, design, molecular docking, anti COVID-19 activity, DFT calculations of novel Schiff base with some transition metal complexes. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117850] [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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49
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Synthesis, crystal structure, computational study and anti-virus effect of mixed ligand copper (II) complex with ONS donor Schiff base and 1, 10-phenanthroline. J Mol Struct 2021; 1246:131246. [PMID: 34658419 PMCID: PMC8510892 DOI: 10.1016/j.molstruc.2021.131246] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 12/16/2022]
Abstract
This work deals with the synthesis, crystal structure, computational study and antiviral potential of mixed ligand copper(II) complex [Cu(L)(phen)](1), (where, H2L = (Z)-N'-((E)-2-hydroxy-3,5-diiodobenzylidene)-N,N-dimethylcarbamohydrazonothioic acid, phen = 1,10-phenanthroline). The Schiff base ligand (H2L) is coordinated with Cu(II) ion in O, N, S-tridentate mode. The copper complex (1) crystallized in the monoclinic system of the space group P21/c with eight molecules in the unit cell and reveals a square pyramidal geometry. Furthermore, we also perform quantum chemical calculations to get insights into the structure-property relationship and functional properties of ligand (H2L) and its copper (II) complex [Cu(L)(phen)](1). Complex [Cu(L)(phen)](1) was also virtually designed in-silico evaluation by Swiss-ADME. Additionally, inspiring by recent developments to find a potential inhibitor for the COVID-19 virus, we have also performed molecular docking study of ligand and its copper complex (1) to see if our compounds shows an affinity for the main protease (Mpro) of COVID-19 spike protein (PDB ID: 7C8U). Interestingly, the results are found quite encouraging where the binding affinity and inhibition constant were found to be -7.14 kcal/mol and 5.82 μM for ligand (H2L) and -6.18 kcal/mol and 0.76 μM for complex [Cu(L)(phen)](1) with Mpro protein. This binding affinity is reasonably well as compared to recently known antiviral drugs. For instance, the binding affinity of ligand and complex was found to be better than docking results of chloroquine (-6.293 kcal/mol), hydroxychloroquine (-5.573 kcal/mol) and remdesivir (-6.352 kcal/mol) with Mpro protein. The present study may offer the technological solutions and potential inhibition to the COVID-19 virus in the ongoing and future challenges of the global community. In the framework of synthesis and characterization of mixed ligand copper (II) complex; the major conclusions can be drawn as follow.
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Omar (Al-Ahdal) ZT, Jadhav S, Pathrikar R, Shejul S, Rai M. Synthesis, Magnetic Susceptibility, Thermodynamic Study and Bio-Evaluation of Transition Metal Complexes of New Schiff Base Incorporating INH Pharmacophore. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2015397] [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]
Affiliation(s)
| | - Shivaji Jadhav
- Department of Chemistry, Tarai College Arts and Science, Aurangabad, Maharashtra, India
| | - Rashmi Pathrikar
- Department of Chemistry, Rajshri Shahu College, Aurangabad, Maharashtra, India
| | - Sumit Shejul
- Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad, Maharashtra, India
| | - Megha Rai
- Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad, Maharashtra, India
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