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dc.contributor.advisorDuval, Paul B.eng
dc.contributor.authorVaughn, Anthony E., 1981-eng
dc.date.issued2008eng
dc.date.submitted2008 Springeng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on June 17, 2009)eng
dc.descriptionVita.eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionThesis (Ph. D.) University of Missouri-Columbia 2008.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Chemistry.eng
dc.description.abstractEarly actinide elements have attracted considerable attention in recent years due to the need for rigorous advancements in spent nuclear fuel recycling and remediation technologies, and for their emerging versatility in organometallic chemistry. Whereas high oxidation state ions dominate environmental speciation, the corresponding high-valent organometallics are rare. These hexa- and pentavalent ions are often stabilized by the isoelectronic oxo or imido ligands, which result in robust molecular properties due to 5f/6d orbital involvement in multiple covalent bonding. The research discussed in this dissertation surveys the synthesis, isolation, and molecular and electronic structural characterization of uranyl(VI) and uranium(V)-imide complexes, and uncovers the influences imparted by a variety of functional ligand designs. In the opening report, salicylidene derived Schiff base chelates adapt to equatorial coordination and control uranyl(VI) photo- and electrochemical activity. In the second study, a ferrocenylcarboxylate ligand undergoes a transformation that renders an unprecedented bent uranyl(VI) moiety supported in a reversible coordination polymer. The final segment focuses on the rare uranium(V) oxidation state supported by pentamethylcyclopentadienyl and imido ancillary ligands in mono- and bimetallic complexes geared to elucidate the effects of ligand substitution and metal-metal communication on the 5f1 electronic configuration. Future directions and applications for each area are summarized.eng
dc.identifier.merlinb69023323eng
dc.identifier.oclc401794650eng
dc.identifier.urihttps://hdl.handle.net/10355/5596
dc.identifier.urihttps://doi.org/10.32469/10355/5596eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.subject.lcshNuclear fuelseng
dc.subject.lcshSoil remediationeng
dc.subject.lcshActinide elementseng
dc.titleHigh valent uranium dioxo and imido complexes: synthesis and structureeng
dc.typeThesiseng
thesis.degree.disciplineChemistry (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


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