American Journal of Applied Chemistry

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In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling

Received: 26 February 2014    Accepted:     Published: 30 March 2014
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Abstract

A series of three new metal (II) complexes of Schiff base were synthesized from the novel ligand derived from Streptomycin and Amoxicillin in stoichiometric ratio. They were characterized by elemental analysis and spectral techniques like IR, 1H NMR, electronic spectrum and mass spectrum. IR spectral data suggested that the tetradentate ligand has coordination to metal ions through azomethine nitrogen, glycosidic oxygen and two amine nitrogens. Electronic spectral measurement indicated square planar geometry of Ni and Zn-complexes and tetrahedral geometry of Cu-complex with diamagnetic behavior. Molar conductivity measurements revealed non-electrolyte nature of the complexes where metal ions have coordination through doubly negative charged anions of the Schiff base. The thermal behavior (TGA/DTA) of the complexes was studied and kinetic parameters were determined by Coats-Redfern method. XRPD technique revealed monoclinic crystal systems for Ni- and Zn-complexes and hexagonal crystal system for Cu-complex. The possible geometries of the metal complexes with their bond length were optimized by MM2 calculations using CsChem3D Ultra-11 program package software. Antibacterial sensitivity of the ligand and its metal complexes were assayed in vitro against four bacterial pathogens viz. E. coli, B. subtilis, S. aureus and K. pneumonia by Kirby Bauer paper disc diffusion method and showed moderate to better potency.

DOI 10.11648/j.ajac.20140201.15
Published in American Journal of Applied Chemistry (Volume 2, Issue 1, February 2014)
Page(s) 19-26
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Antibiotics, Aminoglycoside, Streptomycin, Schiff Base, β-Lactam

References
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    Narendra Kumar Chaudhary, Parashuram Mishra. (2014). In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling. American Journal of Applied Chemistry, 2(1), 19-26. https://doi.org/10.11648/j.ajac.20140201.15

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    Narendra Kumar Chaudhary; Parashuram Mishra. In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling. Am. J. Appl. Chem. 2014, 2(1), 19-26. doi: 10.11648/j.ajac.20140201.15

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    AMA Style

    Narendra Kumar Chaudhary, Parashuram Mishra. In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling. Am J Appl Chem. 2014;2(1):19-26. doi: 10.11648/j.ajac.20140201.15

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  • @article{10.11648/j.ajac.20140201.15,
      author = {Narendra Kumar Chaudhary and Parashuram Mishra},
      title = {In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling},
      journal = {American Journal of Applied Chemistry},
      volume = {2},
      number = {1},
      pages = {19-26},
      doi = {10.11648/j.ajac.20140201.15},
      url = {https://doi.org/10.11648/j.ajac.20140201.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20140201.15},
      abstract = {A series of three new metal (II) complexes of Schiff base were synthesized from the novel ligand derived from Streptomycin and Amoxicillin in stoichiometric ratio. They were characterized by elemental analysis and spectral techniques like IR, 1H NMR, electronic spectrum and mass spectrum. IR spectral data suggested that the tetradentate ligand has coordination to metal ions through azomethine nitrogen, glycosidic oxygen and two amine nitrogens. Electronic spectral measurement indicated square planar geometry of Ni and Zn-complexes and tetrahedral geometry of Cu-complex with diamagnetic behavior. Molar conductivity measurements revealed non-electrolyte nature of the complexes where metal ions have coordination through doubly negative charged anions of the Schiff base. The thermal behavior (TGA/DTA) of the complexes was studied and kinetic parameters were determined by Coats-Redfern method. XRPD technique revealed monoclinic crystal systems for Ni- and Zn-complexes and hexagonal crystal system for Cu-complex. The possible geometries of the metal complexes with their bond length were optimized by MM2 calculations using CsChem3D Ultra-11 program package software. Antibacterial sensitivity of the ligand and its metal complexes were assayed in vitro against four bacterial pathogens viz. E. coli, B. subtilis, S. aureus and K. pneumonia by Kirby Bauer paper disc diffusion method and showed moderate to better potency.},
     year = {2014}
    }
    

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    T1  - In Vitro Antimicrobial Screening of Metal Complexes of Schiff Base derived from Streptomycin and Amoxicillin: Synthesis, Characterization and Molecular Modelling
    AU  - Narendra Kumar Chaudhary
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    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
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    UR  - https://doi.org/10.11648/j.ajac.20140201.15
    AB  - A series of three new metal (II) complexes of Schiff base were synthesized from the novel ligand derived from Streptomycin and Amoxicillin in stoichiometric ratio. They were characterized by elemental analysis and spectral techniques like IR, 1H NMR, electronic spectrum and mass spectrum. IR spectral data suggested that the tetradentate ligand has coordination to metal ions through azomethine nitrogen, glycosidic oxygen and two amine nitrogens. Electronic spectral measurement indicated square planar geometry of Ni and Zn-complexes and tetrahedral geometry of Cu-complex with diamagnetic behavior. Molar conductivity measurements revealed non-electrolyte nature of the complexes where metal ions have coordination through doubly negative charged anions of the Schiff base. The thermal behavior (TGA/DTA) of the complexes was studied and kinetic parameters were determined by Coats-Redfern method. XRPD technique revealed monoclinic crystal systems for Ni- and Zn-complexes and hexagonal crystal system for Cu-complex. The possible geometries of the metal complexes with their bond length were optimized by MM2 calculations using CsChem3D Ultra-11 program package software. Antibacterial sensitivity of the ligand and its metal complexes were assayed in vitro against four bacterial pathogens viz. E. coli, B. subtilis, S. aureus and K. pneumonia by Kirby Bauer paper disc diffusion method and showed moderate to better potency.
    VL  - 2
    IS  - 1
    ER  - 

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Author Information
  • Bio-inorganic and Materials Chemistry Research Laboratory, M. M. A. M. Campus (Tribhuvan University), Biratnagar, Nepal

  • Bio-inorganic and Materials Chemistry Research Laboratory, M. M. A. M. Campus (Tribhuvan University), Biratnagar, Nepal

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