Synthesis, Characterization and Antimicrobial Activities of Mixed Ligand Complexes of Fe (II), Co(II), Ni(II) and Cu (II) Ions Derived from Imine of Benzidine and o-phenylenediammine

  • Hayder Hamied Mihsen Kerbala University, College of Science, Department of Chemistry, Kerbala, Iraq
  • Suhad Kareem Abass Kerbala University, College of Science, Department of Chemistry, Kerbala, Iraq
  • Maysaa Taqe Abed –Alhasan Kerbala University, College of Science, Department of Biology, Kerbala, Iraq
  • Zainab M. Hassan Kerbala University, College of Science, Department of Chemistry, Kerbala, Iraq
  • Ali Kreem Abass Department of Chemistry, College of Applied Medical Sciences, University of Kerbala, Kerbala, Iraq
Keywords: binuclear complexes, imine, benzidine, thermogravimetric analysis, antimicrobial activities

Abstract

Binuclear metal complexes of the metal ions Fe (II), Co (II), Ni (II) and Cu (II) were synthesized by the reaction of these metal ions with the imine of benzidine (H2L) as a primary ligand and o-phenylenediammine (OPD) as a secondary ligand  in a molar ratio of 2:2:1. The prepared complexes were characterized using CHN elemental analysis, FT-IR, UV-visible, molar conductivity, magnetic susceptibility and TGA-DTA thermogravimetric analysis. All the prepared complexes showed apparent stability and could be stored for months without any appreciable change. According to the results obtained by elemental and spectral analyses, a tetrahedral structure is suggested for all the prepared complexes, except for the copper complex which showed a square planar structure. The antimicrobial activities of these complexes were evaluated against Bacillus spp. (Gram-negative bacteria), Proteus spp. (Gram-positive bacteria) and Aspergillus niger (A. niger, a fungal species). The results showed that all the prepared complexes have no apparent effects on Bacillus spp. viability, whereas Proteus spp.  and A. niger were affected significantly.

Published
2020-11-28
How to Cite
Mihsen, H. H., Abass, S. K., Abed –AlhasanM. T., Hassan, Z. M., & Abass, A. K. (2020). Synthesis, Characterization and Antimicrobial Activities of Mixed Ligand Complexes of Fe (II), Co(II), Ni(II) and Cu (II) Ions Derived from Imine of Benzidine and o-phenylenediammine. Iraqi Journal of Science, 61(11), 2762-2775. https://doi.org/10.24996/ijs.2020.61.11.2
Section
Chemistry