Premium
Calorimetric Study of Functionalized Uranyl Peroxide Nanoclusters and Their Monomeric Building Block
Author(s) -
Traustason Hrafn,
Caranto Kiana,
Burns Peter C.
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202100307
Subject(s) - chemistry , uranyl , nanoclusters , enthalpy , monomer , solubility , dissolution , enthalpy change of solution , peroxide , uranium , standard enthalpy of formation , inorganic chemistry , electron affinity (data page) , crystallography , thermodynamics , organic chemistry , molecule , polymer , ion , physics , materials science , metallurgy
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.