Thermochemical Study of Mixed-Ligand Managese(II) Ethylenediaminetetraacetate Complex with Ammonia in Aqueous Solution

摘要

Formation of the mixed-ligand complex [MnEdtaNH_3]~(2-) and of the Mn(II) ammine complex is studied by calorimetry at 298.15 K and ionic strength I = 0.5 (NH_4NO_3). Thermodynamic parameters of the reaction of attachment of the additional ligand to the manganese(II) chelate are determiend; its probable mechanisms is discussed.