Thermodynamic, Structural, and Computational Investigation on the Complexation between UO<sub>2</sub><sup>2+</sup> and Amine-Functionalized Diacetamide Ligands in Aqueous Solution
作者:Phuong V. Dau、Zhicheng Zhang、Yang Gao、Bernard F. Parker、Phuong D. Dau、John K. Gibson、John Arnold、Marilena Tolazzi、Andrea Melchior、Linfeng Rao
DOI:10.1021/acs.inorgchem.7b02971
日期:2018.2.19
The stability constants (log β), enthalpies of complexation (ΔH), and entropies of complexation (ΔS) for the complexes of uranium(VI) with a series of amine-functionalized diaetamide ligands, 2,2′-benzylazanediylbis(N,N′-dimethylacetamide) (BnABDMA), 2,2′-azanediylbis(N,N′-dimethylacetamide) (ABDMA), and 2,2′-methylazanediylbis(N,N′-dimethylacetamide) (MABDMA), in aqueous solution were determined by
铀(VI)与一系列胺官能化的双乙酰胺配体2,2'-苄基氮杂二基双(N)的配合物的稳定常数(logβ),络合焓(ΔH)和络合熵(ΔS),N'-二甲基乙酰胺)(BnABDMA),2,2'-氮杂二基双(N,N'-二甲基乙酰胺)(ABDMA)和2,2'-甲基氮杂二基双(N,N'-二甲基乙酰胺)(MABDMA)通过电位计和量热法测定。电喷雾电离质谱用于验证溶液中铀(VI)配合物的存在。热力学数据表明三种配体与UO的结合强度2 2+遵循BnABDMA