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Filtering by: Alternative title ssim The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase Remove constraint Alternative title ssim: The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase Advisor Nyman, May Remove constraint Advisor: Nyman, May

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  • Organic/Inorganic Hybrid Materials of Uranyl Peroxide Clusters and Uranium Minerals

    Creator:
    Neal, Harrison A.
    Abstract:
    Frontier research of non-aqueous actinide clusters is discussed. Since the inception of the uranyl peroxide clusters over the last decade, they have only been synthesized and characterized as solid crystals and in aqueous solution. This thesis provides thorough characterization of aqueous uranyl clusters and the first demonstration of uranyl cluster...
    Resource Type:
    Dissertation
    Full Text:
    the degree of Doctor of Philosophy in Chemistry presented on June 7, 2018. Title: Organic

  • Using Metal-Oxo Clusters to Expand Actinide Chemistry

    Creator:
    Colliard, Ian
    Abstract:
    A molecular approach to metal oxides allows to the study to fundamental bonding and formation behavior for such metals. Moreover, the molecular nature of such oxides or metal-oxo clusters allows the possibility of exploitation of the properties of the parent oxides. The tetravalent metals, in specific, (M=Zr, Hf, Ce, Th,...
    Resource Type:
    Dissertation
    Full Text:
    those soluble in organic solvents. To study the effect of inorganic ligands, an aqueous system must be

  • Uranyl Peroxide Cluster Formation Pathway and the Role of the Alkali Counterion

    Creator:
    Arteaga, Ana
    Abstract:
    Uranyl peroxide clusters are the newest family of polyoxometalates, discovered in 2015. Although this family is new, over 70 topologies have been reported. However, we lack the fundamental understanding of assembly mechanisms, particularly the role of the alkali countercations. Here, we use a wide range of solution and solid-state characterization...
    Resource Type:
    Dissertation
    Full Text:
    importantly, we have found that in the presence of Cs+ peroxide reduces uranium from U(VI) (Cs-U1) to U(V

  • Synthesis and Characterization of Novel Metal-Oxo Clusters as the Building Blocks in Nature and Synthesis

    Creator:
    Amiri, Mehran
    Abstract:
    Metal-oxo clusters can be described as soluble pieces of metal-oxide frameworks. Metal-oxo clusters are also the building blocks for the Metal-Organic Frameworks (MOFs) and coordination polymers. A better knowledge of metal-oxo clusters helps fundamentally understand geosciences, molecular engineering, catalysis, single-molecule magnetism, and MOFs for synthesis, design, and modification of these...
    Resource Type:
    Dissertation
    Full Text:
    )10(H2O)3(NO3)2] (Mn6Bi2). This is an example of polyoxocation with the organic ligation. In

  • Exploring the Distinct Solution Behavior of Isostructural Polycoltanates

    Creator:
    Fullmer, Lauren
    Abstract:
    Polyoxometalates are a rapidly growing class of discrete metal oxide clusters with a wide range of applications including functional materials. These anionic clusters of the group V and VI transition metals are inexpensive and non-toxic. Within group V polyoxometalates, niobium and tantalum chemistry has been underdeveloped owing to their unique...
    Resource Type:
    Dissertation
    Full Text:
    the degree of Doctor of Philosophy in Chemistry presented on November 1, 2016. Title

  • Polyoxoniobates: fundamental solubility trend and their application in solution and on the surface of thin films

    Creator:
    Rahman, Tasnim
    Abstract:
    Polyoxometalates (POMs) are anions consisting of three or more early transition metals ™ (Gr V and VI) oxoanions (in their highest oxidation state) linked together by a shared oxygen bond to form a 3D framework. Polyoxometalates (POMs) are a rapidly growing class of metal oxo clusters with a wide range...
    Resource Type:
    Dissertation
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    acid character leads to octahedral packing of the metals in an oxygen framework. 1.2. POMs

  • Isolation of New Niobium clusters with Alkali Carbonate

    Creator:
    Feng, Ching-Lei
    Abstract:
    Polyoxoniobates (PONbs) are attracting great attention in recent years due to its novelty as well as a variety of geometrical presentations in different pH conditions. In this paper we are reporting the reaction of tetramethyl-decaniobate ([(CH3)4N]6[Nb10O28]) with alkaline carbonates to observe the periodic trend of alkaline ions interacting with the...
    Resource Type:
    Capstone Project
    Full Text:
    -, and [Nb96O288]96- tetramer in 2012. [14] The organic acid isonicotinic acid dissolved with Cu(OAc)2

  • Structural Elucidation of Metal-Oxo Systems by X-Ray Scattering Methods

    Creator:
    Kozma, Karoly
    Abstract:
    Metal-oxo clusters are discrete molecular metal-oxides. Most metals form numerous cluster compounds that can be ligated, unligated, charged or neutral, controlling their solubility in water and/or organic solvents. They are important species to study reaction pathways from the monomeric building units to the bulk metal oxides, and have many application...
    Resource Type:
    Dissertation
    Full Text:
    the degree of Doctor of Philosophy in Chemistry presented on November 4, 2019. Title