Abstract:
New metal complexes of the ligand 2-amino acetic acid -6-chloro benzothiazole(L) with
the metal ions Au(III),Cu(II),Ni(II),Co(II),and Zn(II) were prepared in alcoholic medium.The
prepared compounds were characterized by FT-IR and UV-Visible spectrophotometer,
Magnetic susceptibility ,Flame atomic absorption technique as well as elemental analysis and
coductivity measurement.From the spectral studies,an square planar monomer structur
proposed for Au(III) complex,octahedral diamer structure for Cu(II) complex, octahedral
monomer structur proposed for Ni(II),and Co(II) complexes,and tetrahedral structure for
Zn(II) complex.Semi-empirical methods (ZINDO/1,PM3 and ZINDO/S) were carried out to
evaluate heat of formation ∆H˚f, binding energy ∆Eb,dipole moment,for all complexes except
Au(III) complex that used AMBER method for this complex, also the vibration frequencies,
and electronic transitions was calculated for prepared ligand.Electrostatic potantial,HOMO
and LUMO energies for ligand were calculated to determine the reactive sites for this
ligand.The bioefficacy of the ligand and its complexes have been examined against the
growth of becteria in vitro to evalute their anti-microbial potential.
