Article Sidebar
Published:
Oct 13, 2015Keywords:
Article Details
Copyright for articles published in this journal is retained by the journal.
SAJChem applies the Creative Commons Attribution (CC BY) license to manuscripts we publish. This license was developed to facilitate open access – namely, free immediate access to, and unrestricted reuse of, original works of all types. Under this license, authors agree to make articles legally available for reuse, without permission or fees, for virtually any purpose. Anyone may copy, distribute or reuse these articles, as long as the author and original source are properly cited.
Main Article Content
Spectral and Thermal Characterization and Antimicrobial Effect of 3-(5-H/Me/Cl/NO<sub>2</sub>-1<i>H</i>-benzimidazol-2-yl)- benzene-1,2-diols and Some Transition Metal Complexes
Abstract
3-(5-H/Me/Cl/NO2-1H-benzimidazol-2-yl)-benzene-1,2-diols (HLX; X=1–4) ligands and HL3 complexes with Fe(NO3)3, Cu(NO3)2, Co(NO3)2, Zn(NO3)2 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 HL3 ligand were evaluated using the disk diffusion method against six bacteria and Candida albicans. HL1,HL2,HL3 and [Cu(HL3)(L3 )(H2O)2](NO3)·H2O show considerable antimicrobial activity toward S. epidermidis and C. albicans.
Keywords: Benzimidazole, benzene-1,2-diol, metal complexes, antimicrobial activity, fluorescence spectroscopy
