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Siddesh M, Sharanya R, Spoorthy L, Bhat D, Udaya Kumar AH, Mahesha, Hema MK, Lokanath NK. Investigation of the molecular basis of halogenated Schiff base derivative by combined crystallographic and computational studies. J Biomol Struct Dyn 2024:1-12. [PMID: 38189357 DOI: 10.1080/07391102.2023.2301512] [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: 04/01/2023] [Accepted: 10/07/2023] [Indexed: 01/09/2024]
Abstract
Halogenated Schiff base derivatives are gaining more popularity in supramolecular chemistry due to the synergistic effect of hydrogen and halogen-based noncovalent interactions, which helps to design novel therapeutic materials. In this work, we have examined the nature of molecular interactions to investigate the structure-functional relationship of a halogen-based derivative. The FTIR, HRMS and NMR spectroscopic techniques confirmed the formation of the desired novel Schiff base compound. Further, crystal structure studies showed an infinite 1D supramolecular chain formed by type-I halogen…halogen interaction. The Hirshfeld surface and enrichment ratio analyses were performed to visualize and assess the role of diverse interactions involved in crystal packing. The QTAIM, NCI, LOL and ELF studies were conducted extensively to comprehend the strength of interaction constructed based on electron density distribution. The global and local reactive indices were determined using DFT studies to analyze the molecular properties of the compound. Antibacterial activity against MRSA bacteria was performed and showed a good zone of inhibition. The docking analysis was performed for 1mwt protein and validated. The in silico molecular docking studies of the halogenated Schiff base structure with the penicillin-binding protein showed a good docking affinity of -7.5 kcal/mol and supported by in vitro studies. The ligand binding stability within the protein's active site was further demonstrated by molecular dynamics (MD) simulation studies for the Schiff base molecule.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- M Siddesh
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - R Sharanya
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - L Spoorthy
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - Dhruva Bhat
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - A H Udaya Kumar
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - Mahesha
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
- Department of Physics, SJCE, JSS Science and Technology University, Mysuru, India
| | - M K Hema
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
| | - N K Lokanath
- Department of Studies in Physics, University of Mysore, Mysuru, Karnataka, India
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The investigation of modification in structural flexibility and coordination modes in a solvent free β-diketone Cu(II) complex by crystal structure and DFT studies. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Chahra BOUCHAMENI, Ouahida ZEGHOUAN, Mahesha, Udaya Kumar A, Chahrazed BEGHIDJA, Richard WELTER, Lokanath N. Design and Structural Analysis of Centrosymmetric and Non-centrosymmetric Zn(II) complexes by the host-guest complexation method. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Umar Q, Huang Y, Nazeer A, Yin H, Zhang JC, Luo M, Meng XG. Synthesis, characterization and anticancer activities of Zn 2+, Cu 2+, Co 2+ and Ni 2+ complexes involving chiral amino alcohols. RSC Adv 2022; 12:32119-32128. [PMID: 36415554 PMCID: PMC9644435 DOI: 10.1039/d2ra05576g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/24/2022] [Indexed: 08/22/2024] Open
Abstract
Seven new metal coordination complexes, [NiC15H43N5O11] (I), [Co3C36H98N6O6] (II), [CuC14H32N2O6] (III), [Cu2C32H43Cl2N2O13] (IV), [Zn2C24H32Cl3N3O3] (V), [Co3C48H66Cl6N6O6] (VI), and [Zn (C18H45N3O3] (VII), have been synthesized from some direct reactions of amino-alcoholic ligands with metal salts in anhydrous methanol or ethanol medium. All the crystals of these seven complexes are crystallized in the chiral space groups (P212121 for (I), (IV), (VI) and (VII); P21 for (III) and (V); and C2 for (II), respectively). Their characteristic peaks were analyzed and assigned by FTIR, NMR, and UV-Vis and elemental analysis techniques. The anticancer activities of amino alcohol complexes (I)-(VII) showed cytotoxic effects against the human tumour cell line A549; among them, complex (V) showed the best activity with an IC50 value of 17.8. The higher biological activity should be related to its di-nuclear zinc(ii) unit in which one zinc is only four-coordinated by four small chloride anions.
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Affiliation(s)
- Q Umar
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - Y Huang
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - A Nazeer
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - H Yin
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - J C Zhang
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - M Luo
- Department of Chemistry and Chemical Engineering, Hefei University of Technology Hefei 23000 P.R. China
| | - X G Meng
- College of Chemistry, Central China Normal University Wuhan 430079 P.R. China
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Solvent-driven self-assembly of two novel di- and tetra-nuclear Cu(II) bis(salamo)-based complexes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Udaya Kumar A, Mahesha, Pampa K, Kumara K, Hema M, Harohally NV, Lokanath N. Structural-property relationship in halogen-bonded Schiff base derivative: Crystal structure, computational and SARS-CoV-2 docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Hayat F, Rauf N, Rehman Z, Bélanger-Gariepy F. Exploring the hydrogen-bonding interactions in the piperazinylethanol substituted homoleptic zinc(II)-dithiocarbamate and its diimine 2,2´-bipyridyl and 1,10-phenanthroline adducts, and their DNA binding studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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N LT, K HM, S KC, S S, L M, P M, R JR, A SM, Karnan M, K LN. N-[2-(5-bromo-2-chloro-pyrimidin-4-yl)thio)-4-methoxy-phenyl]-4-chlorobenzenesulfonamide: The existence of H-bond and halogen bond interactions assisted supramolecular architecture – A quantum chemical investigation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Mahesha, Udaya Kumar AH, Vindya KG, Pampa KJ, Rangappa KS, Lokanath NK. Structure-property relationship in thioxotriaza-spiro derivative: Crystal structure and molecular docking analysis against SARS-CoV-2 main protease. J Mol Struct 2022; 1250:131746. [PMID: 34697506 PMCID: PMC8520729 DOI: 10.1016/j.molstruc.2021.131746] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 12/11/2022]
Abstract
Detailed structural and non-covalent interactions in thioxotriaza-spiroderivative (DZ2) are investigated by single crystal structure anslysis and computational approaches. Its results were compared with the previously reported spiroderivative (DZ1). The crystal structure analysis revealed various C–H…O, N–H…O, C–H…N and N–H…S hydrogen bonds involved in constructing several dimeric motifs to stabilize the crystal packing. The differences and similarities in the relative contribution of non-covalent interactions in DZ1 and DZ2 compounds are compared using the Hirshfeld surface analysis and 2D fingerprint plots. The binding energies of specific molecular pairs and homodimers have been obtained using molecule–molecule interaction energy calculation. The hierarchy and topology of pair-wise intermolecular interactions are visualized through energy frameworks. The nature and strength of intra and intermolecular interactions were characterized using non-covalent interaction index analysis and the quantum theory of atoms in molecule approach. Further, molecular docking of compounds (DZ1 and DZ2) with SARS-CoV-2 main protease for COVID-19 is performed. And the superposition of these ligands and inhibitor N3, which is docked into the binding pocket of 7BQY, is presented. The binding affinity of −6.7 kcal/mol is observed, attributed to hydrogen bonding and hydrophobic interactions between the ligand and the amino acid residues of the receptor.
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Affiliation(s)
- Mahesha
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
| | - A H Udaya Kumar
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
| | - K G Vindya
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
| | - K J Pampa
- Department of Biotechnology, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
| | - K S Rangappa
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
| | - N K Lokanath
- Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru, Karnataka 570 006, India
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