Original Articles: 2013 Vol: 5 Issue: 5
Synthesis, spectroscopic investigation and antimicrobial studies on some Schiff base complexes of Cu(II) and Ni(II)
Abstract
Two new metal complexes of Cu (II) and Ni (II) ions with a Schiff base derived from Glutaraldehyde and L-Valine
have been investigated. The resulting complexes were characterized by elemental analysis, X-ray Diffraction
studies, thermogravimetric analysis, Uv/vis IR, 1H NMR spectral studies, molar conductance, magnetic
susceptibility measurements and antimicrobial activity. The molar conductance measurements indicates that the
complexes are non electrolytes. The IR data demonstrate the tetradentate binding of the ligand. The XRD data
shows that CuL1 and NiL1 complexes were microcrystalline in nature. The invitrio antimicrobial activity of the
compounds is tested against the bacteria Klebsiella sps, Escherichia coli, Staphylococcos aureus and fungi Candida
sps, Aspergillus niger and Aspergillus fumingatus by the Disc diffusion method. The complexes show stronger
antimicrobial activity than the free ligands.