The complexes of H3G with Zn( Ⅱ ) and Mn( Ⅱ ) were synthesized. And characteristic of the complexes by elementary analysis, Infrared, Ultraviolet, thermo-weightily, the result show that the complexes of Glycyrrhizic acid with Zn(Ⅱ and Mn(Ⅱ have general formula of ...