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  • 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
    Full Text:
    Abstract approved ………………………………………. May Nyman Polyoxometalates (POMs) are anions consisting of three

  • 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:
    . Abstract approved: ______________________________________________________ May Nyman

  • 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:
    : ______________________________________________________ May Nyman A molecular approach to metal oxides allows to the study to fundamental

  • Formation of hybrid supramolecular assemblies using biological molecules and transition metals

    Creator:
    Smith, Rachelle M. S.
    Abstract:
    Naturally occurring assemblies, such as DNA and proteins, utilize intermolecular forces (i.e H-bonding and van der Waals) to assemble. Utilizing these electrostatic interactions has only just started in the past five decades to be a tool used in synthetic chemistry in what is known as supramolecular chemistry. Supramolecular chemistry has...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ May Nyman

  • Synthesis and Solution Behavior of Tetravalent Metal Clusters with Ammonium Counterions

    Creator:
    Brown, Jessica C.
    Abstract:
    Global interest in reducing carbon emissions by use of alternative energy sources makes nuclear energy production and the impacts of the nuclear energy cycle relevant. Studying the aqueous speciation of tetravalent metals commonly used for nuclear energy (uranium, thorium, plutonium) can inform us of general metal properties and their behavior...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ May Nyman Global interest in reducing carbon emissions by use of alternative energy

  • 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:
    : ______________________________________________________ May Nyman Uranyl peroxide clusters are the newest family

  • Synthesis and Characterization of Alkylammonium Salts of Butyltin-Polyoxotungstates for Thin Film Functionalization

    Creator:
    Olsen, Morgan R.
    Abstract:
    Metal-oxo clusters are discrete, soluble pieces of bulk metal oxide. Cluster size, monodispersity, and chemical properties allow for potential use as solution-based precursors for functional metal oxide films. Classical monoalkyltin-oxo clusters are either charge neutral or stabilized by anions. The structure of Cs₄.₅H₂.₅[(BuSn)₃(α-SiW₉O₃₇)]*2H₂O enables its use in established ion exchange...
    Resource Type:
    Dissertation
    Full Text:
    ACKNOWLEDGEMENTS To my advisor Dr. May Nyman, for all you support over the past five years and providing me

  • 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:
    became popular when Nyman et al. isolated the Keggin derivative of PONbs cluster [SiNb12O40]16- in 2002

  • Synthesis and Solution Characterization of Metal-Oxo Photoresist Precursors

    Creator:
    Hutchison, Danielle C.
    Abstract:
    Metal-oxo clusters can be described as soluble pieces of metal-oxide frameworks. Currently, metal-oxo clusters are being considered as solution-based precursors for extreme ultraviolet (EUV, 13.5 nm) photoresist materials, which are a crucial component in the fabrication of microelectronic devices. Two different photoresist precursor systems have been investigated – alkyltin clusters...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ May Nyman Metal-oxo

  • 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:
    : ____________________________________________________ May Nyman Metal-oxo clusters are discrete molecular metal-oxides. Most metals form