Thermodynamic properties of actinide complexes. Uranyl(VI)- and thorium(IV)-glycine systems
作者： Arturo Bismondo , Luigi Rizzo
DOI: 10.1016/S0277-5387(00)81248-6
关键词: Actinide 、 Inorganic chemistry 、 Sodium perchlorate 、 Uranyl 、 Chemistry 、 Stability constants of complexes 、 Enthalpy 、 Chemical stability 、 Metal ions in aqueous solution 、 Carboxylate
摘要: Abstract Stability constants, enthalpies and entropies in the formation of uranyl(VI) thorium(IV) with aspartic acid have been determined at 25.0°C a 1.0 mol dm−3 aqueous solution sodium perchlorate by means potentiometric calorimetric techniques. Because precipitation solid compounds, only two complexes 1 : 2 stoichiometry were observed uranyl(VI)—asparate system one complex thorium(IV)—aspartate system. Comparison values stability constants enthalpy entropy changes corresponding some mono- di-carboxylate ligands suggests that binding both metal ions involves carboxylate group only, furthest from positive amino group.
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