Preparation, Spectra and Biological Properties of Transition Metals ((III) and (II) Mixed - Ligand Complexes with 5-Chlorosalicylic Acid and L-Valine

Shatha M. H. Obaid, Taghreed H. Al-Noor, Noor A. Hussien


Mixed ligand metal complexes of CrIII, FeIII,II, NiII and CuII have been synthesized using 5-chlorosalicylic acid (5-CSA) as a primary ligand and L-Valine (L-Val) as secondary ligand. The metal complexes have been characterized by elemental analysis, electrical conductance, magnetic susceptibility measurements and spectral studies. The electrical conductance studies of the complexes indicate their electrolytic nature. Magnetic susceptibility measurements revealed paramagnetic nature of the all complexes. Bonding of the metal ion through –OH- and –COO- groups of bidentate to the 5-chlorosalicylic acid and through –NH2 and –COO- groups of bidentate to the L-valine by FT-IR studies . The agar diffusion method has been used to study the antibacterial activity of the ligands and complexes against the pathogenic bacteria E.Coli, Pseudomonas, Bacillus and Staphylococcus.



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