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Filtering by: Creator Terry, Michael D. Remove constraint Creator: Terry, Michael D. Committee Member Lerner, Michael M. Remove constraint Committee Member: Lerner, Michael M. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Enantioselective Total Syntheses of Quinolizidine Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A

    Creator:
    Veerasamy, Nagarathanam
    Abstract:
    The enantioselective total synthesis of quinolizidine-containing natural product cermizine D and formal syntheses of senepodine G and cermizine C has been achieved. These natural products are members of the lycopodium alkaloids, which have attracted significant attention due to their exciting biological activities and the diverse structural scaffolds. Key steps in...
    Resource Type:
    Dissertation
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    Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A. Abstract approved

  • Design, characterization, and application of spectrometers for determination of low-level dissolved oxygen with small-volume sampling methodology

    Creator:
    Cakin, Defne
    Abstract:
    New analytical methods and instrumentation were developed for the determination of dissolved oxygen (DO) at low concentrations in water. The methods were based on monitoring the absorbance increase due to the oxidation of reduced indigo carmine (IC) by oxygen in the sample in different types of spectrometer cells. Spectrophotometer cells...
    Resource Type:
    Dissertation
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    : ___________________________________________ James D. Ingle, Jr. New analytical methods and instrumentation were developed for the

  • The Role of Materials Chemistry in Designing Advanced Color Inorganic Pigments

    Creator:
    Medina, Elena A.
    Abstract:
    The results of the research presented in this work are related to synthesis and investigations of novel color inorganic pigments having various structures and shades. Inorganic pigments play a major role in contemporary life. They are used in paints, rubber, plastic, cosmetics etc. Searching for new, stable, environmentally benign and...
    Resource Type:
    Dissertation
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    a combination of d-d interatomic transitions of Mn5+/Cr5+ cations and transition metal–O2- charge

  • Development of new high-temperature piezoelectric perovskite ceramics

    Creator:
    Ansell, Troy Youngmin
    Abstract:
    Lead zirconate titanate (PZT) is the dominant ferroelectric material in the market due to its excellent piezoelectric properties, relatively high Curie transition temperature (T[subscript C]), low cost, etc. However, because of emerging applications with requirements for high temperature (T[subscript C] > 400 °C) ferroelectrics, researchers are increasingly looking at alternative...
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    Dissertation
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    properties between normal ferroelectrics [(a) - (d)], anti-ferroelectrics [(e) - (h)], hard ferroelectrics

  • Photostability of organic semiconductors : from bulk to nanoscales

    Creator:
    Quist, Nicole Arianne
    Abstract:
    Organic semiconductors have attracted considerable attention due to their applications in low-cost, solution-processable (opto)electronic devices. An important class of high-performance organic semiconductors is pentacene derivatives, which exhibit high charger carrier mobilities in field-effect transistors and ultrafast singlet fission in photovoltaic devices. These derivatives have served as benchmark materials for systematic...
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    Dissertation
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    formation depending on the host matrix. This was also compared to single Pn donor (D) molecules that were

  • Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

    Creator:
    Li, Zhifei
    Abstract:
    Grid-scale energy storage systems are urgently needed to increase the flexibility and rigidity of the grid for modern society and take full advantage of the renewable green energy resources such as solar energy and wind energy. Na-ion batteries (NIBs) and K-ion batteries (KIBs) have been emerged as one of the...
    Resource Type:
    Dissertation
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    , which increases its reversible capacity from 283 to 359 mAh/g. We observe the interlayer d-spacing of

  • Excited state molecular structural evolution and chemical reactivity studied by femtosecond stimulated Raman spectroscopy

    Creator:
    Han, Fangyuan
    Abstract:
    In this dissertation, my research work on excited state dynamics of small organic molecules in solutions is presented. Using femtosecond stimulated Raman spectroscopy (FSRS) as the main experimental tool, the excited state hydrogen-bonding dynamics (ESHBD) of Coumarin 102, a common laser dye molecule, in ethanol solution is examined with <150...
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    Dissertation
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    (b); deuterated chloroform CDCl3 (c); chloroform CHCl3 (d); and ethanol (e) .......... 74 Figure

  • A unified approach for the total synthesis of C₁₀-functionalyzed Lycopodium alkaloids

    Creator:
    Saha, Mrinmoy
    Abstract:
    Lycopodium alkaloids have shown widespread and noteworthy biological activity, consisting of over 250 known natural products. Moreover, their structural complexity and diversity have attracted considerable attention from numerous laboratories including our own. Recently, we have developed a unified approach that would provides access to numerous, previously unprepared C₁₀-functionalized lycopodium alkaloids....
    Resource Type:
    Dissertation
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    organocatalyzed intramolecular Michael reaction, formation of tricyclic skeleton using a conformationally

  • Nonlinear Terahertz Spectroscopy and imaging of Carbon Nanomaterials

    Creator:
    Lee, Byounghwak
    Abstract:
    This dissertation presents nonlinear terahertz (THz) properties of carbon nanomaterials investigated by time-resolved high-field THz spectroscopy. In order to determine THz characteristics of nanomaterials, we performed THz power spectrum measurement, THz raster imaging, THz time-domain spectroscopy (THz-TDS) and time-resolved pump-probe experiment on two different types of single layer graphene and...
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    Dissertation
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    adviser, Professor Yun-Shik Lee, and my group members, Dr. Michael Paul, Dr. Zachary James Thompson, Dr

  • Copper and iron chalcogenides for efficient solar absorption

    Creator:
    Platt, Heather A. S.
    Abstract:
    This dissertation outlines two approaches for improving the efficiency and reducing the cost of photovoltaic energy generation. First, the structures of known binary copper and iron compounds are used to choose the promising compositions Fe₂XS₄ (X = Si, Ge), Cu₃TaQ₄ (Q = Se, Te), and BaCuQ'F (Q' = S, Se,...
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    Dissertation
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    including Cheol-Hee Park, Michael Hrushka, Joa-Young Jeong, Paul Newhouse, Kai Jiang, Bahar Ozmen, Chris