Synthesis and spectroscopic study of transition metal ions (Co(II), Ni(II), Cu(II) ) complexes containing a mixed ligands via salpphen and some of amino acids

Schiff base ligand salpphen (L) were synthesized by the condensation reaction of pphenylenediaminewith salicylaldehyde, Schiff base ligand was used as a primary ligand andsome of amino acid (Alanine or Glycine) as secondary ligand to synthesized complexescontaining mixed ligands with the metals ions Co(II), Ni(II), Cu(II) . The prepared ligand(L) wascharacterized on the basis elemental analyses(CHN), FT-IR,1HNMR, UV-Visible spectroscopy.While prepared complexes were characterized on the basis elemental analyses, FT-IR, 1HNMR,UV-Visible spectroscopy, conductivity and magnetic measurements. The morphology of the oneof the complexes CuLAla was studied by scanning electron microscopy (SEM). The compoundswere subjected to simultaneous thermogravimetric analysis (TGA/DTA) to study theirdecomposition mechanism and thermal stability. The spectroscopic and magnetic momentsshows the suggested geometry of the metal ions complexes are octahedral. The antibacterialactivities of the ligand and some of its metal complexes have been screened against bacteria E.coli and S. aureus.