Calorimetric Study of Functionalized Uranyl Peroxide Nanoclusters and Their Monomeric Building Block

被引：4
|
作者：
Traustason, Hrafn [1 ]
Caranto, Kiana [2 ]
Burns, Peter C. [1 ,2 ]
机构：
[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[2] Univ Notre Dame, Dept Civil & Environm Engn & Earth Sci, Notre Dame, IN 46556 USA
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2021年 / 2021卷 / 28期
关键词：
Actinide; Polyoxometalate; Thermodynamics; Uranyl peroxide cluster; POLYOXOMETALATE; CAGE; WATER; CLUSTERS;
D O I：
10.1002/ejic.202100307
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The description of the energy landscape of polyoxometalates (POMs) enriches our understanding of their solution behavior through quantitative information that can be used to predict their existence, stability, and properties. Herein, we report thermodynamic values that describe the energy landscape of four uranyl peroxide nanoclusters (UPCs) (LiRb-U@U-24, LiNa-U(24)Pp(12), NaK-U(24)Pp(12), and U(60)Ox(30)) and a building block of UPCs, lithium uranyl triperoxide monomer (Li-UT). The results reveal relationships between the affinity of counter cations and the anionic uranyl peroxide units, enthalpy of dissolution, as well as enthalpy of crystallization and cluster solubility. Additionally, the calorimetric measurements of Li-UT allowed us to calculate a favorable enthalpy of formation of Li-U-24 and Li-U-28 from their monomeric units.
引用
收藏
页码：2840 / 2845
页数：6
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