oa South African Journal of Chemistry - Spectral and thermal characterization and antimicrobial effect of 3-(5-H/Me/Cl/NO-1-benzimidazol-2-yl)-benzene-1,2-diols and some transition metal complexes : research article

Volume 65, Issue 1
  • ISSN : 0379-4350



3-(5-H/Me/Cl/NO-1-benzimidazol-2-yl)-benzene-1,2-diols (HL; X=1-4) ligands and HL complexes with Fe(NO), Cu(NO), Co(NO), Zn(NO) have been synthesized and characterized. The structural representations of the compounds are proposed on the basis of elemental analysis, molar conductivity,TGA, mass, FT-IR, 1H- and 13C-NMR spectrometry. All of the complexes are 1:1 electrolyte and have 1:1 M:L ratio except that of Cu(II). All of the complexes present fluorescence, the Co(II) complex showing the highest fluorescence intensity and the highest emission wavelength in comparison to the other complexes. Antibacterial activities of the ligands and the complexes formed by the HL ligand were evaluated using the disk diffusion method against six bacteria and . HL, HL, HL and [Cu()()(HO)](NO)·HO show considerable antimicrobial activity toward and .

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error