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  • Tracking Photoinduced Primary Events with Femtosecond Stimulated Raman Spectroscopy and Calculations

    Creator:
    Wang, Yanli
    Abstract:
    Femtosecond stimulated Raman spectroscopy (FSRS) is a powerful ultrafast technique which can track photoinduced excited state structural events on femtosecond (fs) to picosecond (ps) timescales. In addition to high temporal and spectral resolutions, FSRS provides a broad spectral window from ca. 100—2000 cm-1 for detection, enabling the direct mapping of...
    Resource Type:
    Dissertation
    Full Text:
    for the degree of Doctor of Philosophy in Chemistry presented on November 28, 2017 Title

  • The synthesis and spectral properties of 2,4-dioxabicyclo [3.3.1] nonanes

    Creator:
    Provant, Stephen Glenn
    Abstract:
    3-Methyl-2,4-dioxabicyclo [3.3.1] nonane and 7-hydroxy-3-methyl-2, 4-dioxabicyclo [3.3.1] nonane were synthesized by the method of Croxall, Glavis and Neher, although in low yields. The structure of both compounds was proven by analytical methods and analysis of their spectral properties. Tentative configuration of C-3 in both compounds was assigned on the assumption...
    Resource Type:
    Masters Thesis
    Full Text:
    t 3 Title The Synthesis and Spectral Properties of Sorne 2,4- dioxabicyclo fs. z. | ,ro.rrrr

  • Decomposition of perfluoroalkyl groups bonded to boron

    Creator:
    Walsh, James Elroy William
    Abstract:
    All attempted synthesis of perfluoroalkyl boron bonded groups have resulted in the formation of boron-fluorine bonds from the probable decomposition by α-fluorine transfer. The substance alkali metal di-n- butylborate (I) has been identified as the potassium derivative by its reaction with di-n-butylboron chloride and isolation of potassium chloride. The reaction...
    Resource Type:
    Masters Thesis
    Full Text:
    Product Mixture 28 The Reaction of (n- C4H9)2 BIC with (n- C4H9)2BC1 as Studied by Glc Analysis 30 The

  • Cation Substitution Effects in Complex Transition Metal Oxides

    Creator:
    Duell, Brett A.
    Abstract:
    Understanding structural evolution in solids as composition changes is essential to materials properties prediction. Such structure-properties relationships are the theme of solid state chemistry. Materials scientists and chemists have utilized an abundance of simple crystal structures to enhance understanding of chemical and structural origins of properties in materials for decades....
    Resource Type:
    Dissertation
    Full Text:
    the degree of Doctor of Philosophy in Chemistry presented on May 28, 2020. Title: Cation

  • 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:
    Ian Colliard for the degree of Doctor of Philosophy in Chemistry presented on February 28, 2022

  • The chemistry of acetohydroxamic acid related to nuclear fuel reprocessing

    Creator:
    Matteson, Brent Searle
    Abstract:
    Used Nuclear Fuel (UNF) contains transuranic (TRU) elements and numerous fission products as a result of the uranium fission process and neutron activation that occur in commercial light water power reactors. Recent environmental and nuclear proliferation concerns have spawned the development of advanced reprocessing techniques to close the nuclear fuel...
    Resource Type:
    Dissertation
    Full Text:
    . ........................................................................... 27  Figure 2.11: Structures of (a) CCD, (b) PEG-400, and (c) FS-13

  • 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...
    Resource Type:
    Dissertation
    Full Text:
    common laser dye molecule, in ethanol solution is examined with <150 fs time resolution. The dynamics

  • Bridging the Gap Between Equilibrium Properties and Ultrafast Dynamics with Time-Resolved Spectroscopy of Functional Systems

    Creator:
    Krueger, Taylor D.
    Abstract:
    Ultrafast spectroscopy has recently gained momentum as a powerful, noninvasive characterization toolset capable of studying a diverse array of samples with applications in chemistry, physics, biology, engineering, and more. Two popular ultrafast spectroscopic techniques include femtosecond transient absorption (fs-TA) and femtosecond stimulated Raman spectroscopy (FSRS). The latter of these techniques...
    Resource Type:
    Dissertation
    Full Text:
    transient absorption (fs-TA) and femtosecond stimulated Raman spectroscopy (FSRS). The latter of these

  • Dynamics and Design of Green Fluorescent Protein-Inspired Superphotoacids and Red-Emitting Fluorophores with Transient Absorption and Femtosecond Stimulated Raman Spectroscopy

    Creator:
    Chen, Cheng
    Abstract:
    In the past decades, femtosecond stimulated Raman spectroscopy (FSRS) has been gaining tremendous popularity in fundamental sciences stemming from chemistry to biology. It is capable of capturing both equilibrium and non-equilibrium structural information across a broad range of timescales with simultaneously high temporal and spectral resolutions. Femtosecond transient absorption spectroscopy...
    Resource Type:
    Dissertation
    Full Text:
    absorption spectroscopy (fs-TA) acts as a powerful partner technique that complements the dynamics analysis

  • Capturing Molecular Movies of Organic and Organometallic Systems in Solution by Ultrafast Spectroscopy

    Creator:
    Boulanger, Sean A.
    Abstract:
    Ultrafast spectroscopy can exploit the structure-function relationship of chemical- and biological-based systems. More specifically, femtosecond stimulated Raman spectroscopy (FSRS) provides ground- and excited-state vibrational information with simultaneously high spectral (spatial) and temporal resolutions. The electronic counterpart, femtosecond transient absorption (fs-TA), complements FSRS data analysis as part of a comprehensive approach...
    Resource Type:
    Dissertation
    Full Text:
    (spatial) and temporal resolutions. The electronic counterpart, femtosecond transient absorption (fs-TA