【摘 要】
：
In order to obtain the standard molar enthalpies of formation of Rare-Earth amino acid coordination compounds, precise isothermal solution-reaction calorimetric
【机 构】
：
Hengyang Teachers College
【出 处】
：
Journal of Wuhan University of Technology-Materials Science
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 Δ-rHΘ-m 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 (ClO-4)-3·H-2O(s) [Ln = La, Yb] at T = 298.2K were obtained. The values of them is to be Δ-rHΘ-m [La(Gly)- 5/2(Ala)- 3/2(ClO-4)-3·H-2O(s)] =-3545.45 kJ/ mol and Δ-rHΘ-m [Yb(Gly)- 5/2(Ala)- 3/2(ClO-4)-3·H-2O(s)]= -3793.81kJ/mol, respectively.
The order of a-rHΘ-m 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 (ClO-4) -3 · H- ] at T = 298.2K were obtained. The values of them are as Δ-rHΘ-m [La (Gly) -5/2 (Ala) -3/2 (ClO-4) ) = -3545.45 kJ / mol and Δ-rHΘ-m [Yb (Gly) -5/2 (Ala) -3/2 (ClO-4) -3 · H-2O (s)] = -3793.81 kJ / mol, respectively.
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