Aspect on IR and TGA studies on the effect of some complexes solvents prepared by reactions of Arginine with metal ions of Zn(II),Cr(III),Co(II) and Fe(III)

Arginine complexes were prepared with some of transition metals in a stoichiometric ratio of 1:2 (Mn+: L), where Mn+ = Fe3+, Cr+3, , Co+2, and Zn2+ ions. The Complexes were characterized by some of physicochemical and spectroscopic techniques as electric conductivity, metal contents, IR, UV–Visible, and molar conductance techniques. Thermal studies were carried out by thermo gravimetric analysis. The stoichiometric ratios of the synthesized complexes were confirmed by using molar ratio method. Solvent effect on the electronic spectra of the arginine ligand was examined using solvents with different polarities.