Synthesis, Spectroscopic Characterization, Thermal Investigation and Antimicrobial Activity of S, O and N-Donor Heterocyclic Schiff Base Ligands and their Co(II), Cd(II), Hg(II), - Egyptian Knowledge Bank

1209

Synthesis, Spectroscopic Characterization, Thermal Investigation and Antimicrobial Activity of S, O and N-Donor Heterocyclic Schiff Base Ligands and their Co(II), Cd(II), Hg(II),

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Last updated: 01 Jan 2025

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Abstract

THE POLYDENTATE ligands 2,5-N,N-bis (dimethyl-1- ……phenyl-4-pyrazoline-5-one) furanidine; 2,5-N,N-bis (pyridine) furanidine and 2,5-N,N-bis (2-thiophenol) furanidine (L1 – L3), have been prepared and identified. The chemical behavior of these ligands towards some metal cations such as Co(II) Cd(II), Hg(II), Fe(III) and UO2(II) was studied. The isolated complexes are characterized using analytical data, IR, 1H-NMR, UV-visible, mass spectroscopy, magnetic susceptibility, thermal analysis and molar conductance measurements. Bonding of the ligands with the metal ions is deduced from IR spectra and the presence of the mononuclear complexes are inferred from the mass spectral study. An octahedral structure is proposed for the prepared metal complexes and some ligand field parameters (Dq, B, and β) in addition to LFSE were calculated from electronic spectral data. All synthesized compounds were screened for their antimicrobial activity against gram positive and gram negative bacteria and fungi. The biological evalution study showed high to moderate bacterial activity compared with the ligands, their metal complexes and known antibiotics data.

DOI

10.21608/ejchem.2010.1209

Keywords

Heterocyclic ligands, Metal complexes, Thermal studies and Antimicrobial activity

Volume

Article Issue

Related Issue

288

Issue Date

2010-02-01

Receive Date

2009-12-22

Publish Date

2010-03-02

Page Start

137

Page End

162

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 53_Issue 1_Pages 137-162.pdf

PDF . 2.0MB

Link

https://ejchem.journals.ekb.eg/article_1209.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1209

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Synthesis, Spectroscopic Characterization, Thermal Investigation and Antimicrobial Activity of S, O and N-Donor Heterocyclic Schiff Base Ligands and their Co(II), Cd(II), Hg(II), Fe(III) and UO2(II) Metal Complexes

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