摘要
The stability constants of the 1:1 complexes of H4L (5.12-diphenyl-7.14-dimethyl-1,4,8,11-tetraazamacrocyclotetradecane-N',N',N'',N''-tetraacetic acid) with M(2-) ions (M=Cu.Ni,Co,Zn,Mn,Cd.Mg,Ca.Sr,Ba) were determined in 0.5 mol L KCl aqueous solution at 45℃,50℃ and 60℃ by potentiometric titration and computer fitting. The △H and △S of the coordination reaction in the solution were given.
The stability constants of the 1:1 complexes of H4L (5.12-diphenyl-7.14-dimethyl-1,4,8,11-tetraazamacrocyclotetradecane-N',N',N'',N''-tetraacetic acid) with M(2-) ions (M=Cu.Ni,Co,Zn,Mn,Cd.Mg,Ca.Sr,Ba) were determined in 0.5 mol L KCl aqueous solution at 45℃,50℃ and 60℃ by potentiometric titration and computer fitting. The △H and △S of the coordination reaction in the solution were given.
