论文部分内容阅读
In order to obtain the standard molar enthalpies of formation of Rare-Earth amino acid coordination compounds, precise isothermal solution-reaction calorimetric method was used. The value of ΔrHΘm of two coordination reactions was determined at T = 298.2 K. From the experimental results and other auxiliary values, the standard molar enthalpies of formation of Ln(Gly)5/2(Ala)3/2 (ClO4)3·H2O(s) [Ln = La, Yb] at T = 298.2 K were obtained. The values of them is to be ΔrHΘm [La(Gly)5/2(Ala)3/2(ClO4)3·H2O(s)] =-3545.45 kJ/ mol and ΔrHΘm [Yb(Gly)5/2(Ala)3/2(ClO4)3·H2O(s)]= -3793.81 kJ/mol, respectively.