Author ORCID Identifier
Document Type
Thesis
Date of Award
2022
Degree Name
Master of Science (MS)
Department
Chemistry
First Advisor
Pere PM Miro
Abstract
Actinide molecular metal oxides are a family of clusters composed of a variable number of An(IV) centers connected through a network of oxygen and hydroxide ligands with many potential applications in nuclear waste reprocessing and environmental remediation. However, our knowledge regarding the aqueous speciation of actinide ions and their preferred nucleation pathway to form high nuclearity clusters is limited compared to their transition metal counterparts. Here, we present a computational study on the speciation and nucleation of actinide ions up to 4+ in aqueous media in the presence of zwitterionic glycine ligands. Both eight and nine coordinated species were considered. In both, the exchange of aquo ligands by zwitterionic glycine is thermodynamically favorable, which causes significantly decreasing the number of available An(IV)-H2O moieties. Both olation and oxolation reaction pathways were studied towards the formation of dimeric intermediates.
Subject Categories
Computer Sciences
Keywords
Actinide molecular metal oxides
Number of Pages
99
Publisher
University of South Dakota
Recommended Citation
Mazumder, Saikot, "Speciation and Nucleation of An(IV) in Aqueous Media" (2022). Dissertations and Theses. 92.
https://red.library.usd.edu/diss-thesis/92