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Asian Journal of Research in Chemistry
Year : 2020, Volume : 13, Issue : 4
First page : ( 265) Last page : ( 274)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2020.00052.8

Schiff base metal complexes: Synthesis, characterization, thermal analysis and antibacterial activity

Paul Tuly1, Hossen Md. Faruk1, Kudrat-E-Zahan Md.1, Haque Md. Masuqul1, Hossain Md. Saddam2, Zamir Rausan1, Asraf Md. Ali1,*

1Department of Chemistry, Rajshahi University, Rajshahi-6205, Bangladesh

2Department of Chemistry, Begum Rokeya University, Rangpur, Bangladesh

*Corresponding Author E-mail: asraf.chem@ru.ac.bd

Online published on 16 September, 2020.

Abstract

Cu(II), Co(II), Ni(II) and Mn(II) complexes with the Schiff base (SB) derived from the condensation of 2-aminophenol with salicylaldehyde were synthesized. The complexes were characterized by elemental analyses, molar conductivity, magnetic moment, FT-IR, UV-vis and ESI-MS spectrometry as well as thermal analyses. The conductivity data of the complexes confirmed their non-electrolytic nature. Square-planar geometry was suggested for Cu(II) and Ni(II) complex and tetrahedral structure suggested for Co(II) and Mn(II) complex. The prepared complexes and ligand were screened in-vitro for their antimicrobial activity against gram-positive bacteria (Bacillus cereus) and gram-negative bacteria (Escherichia coli.) In all the cases, metallation increased the antimicrobial activity compared with the free ligand.

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Keywords

Schiff Base, Metal Complex, Antibacterial Activity, Thermal Analysis.

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