COBALT(II) AND NICKEL(II) COMPLEXES OF A SCHIFF BASE: SYNTHESIS, CHARACTERISATION AND ANTIMICROBIAL INVESTIGATIONS

Four transition metal complexes, [Co(H2L)2Cl2] (1) [Co(H2L)2NO3]NO3 (2) [Ni(H2L)2Cl2] (3) and [Ni(H2L)2NO3]NO3 (4) were synthesized from the Schiff base, 5-[{(2-hydroxyphenyl)imino}methyl]-6-methoxy phenol(H2L). The characterization study of all the complexes was done using elemental studies, molar...

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Bibliographic Details
Published in:Rasāyan journal of chemistry 2022, Vol.15 (2), p.1202-1211
Main Authors: K. Sebastian, Jesna, Muraleedharan Nair, M. K., Sasi, Sreesha
Format: Article
Language:English
Online Access:Get full text
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Summary:Four transition metal complexes, [Co(H2L)2Cl2] (1) [Co(H2L)2NO3]NO3 (2) [Ni(H2L)2Cl2] (3) and [Ni(H2L)2NO3]NO3 (4) were synthesized from the Schiff base, 5-[{(2-hydroxyphenyl)imino}methyl]-6-methoxy phenol(H2L). The characterization study of all the complexes was done using elemental studies, molar conductance measurements, magnetic moment studies, FT-IR, 1H NMR, Electronic spectroscopy, thermal analysis, and PXRD. The antimicrobial screening of H2L and the metal complexes was conducted in-vitro against gram-negative bacteria like Escherichia coli, Aeromonas hydrophila, and Vibrio parahaemolyticus; gram-positive Bacillus subtilis and the fungi Aspergillus niger and Trichophyton tonsurans. Complexation was found to increase the biocidal activity of the ligand towards all microorganisms.
ISSN:0974-1496
0974-1496
DOI:10.31788/RJC.2022.1526789