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Filtering by: Creator Feindel, Kristin B. Remove constraint Creator: Feindel, Kristin B. Academic Affiliation Chemistry Remove constraint Academic Affiliation: Chemistry

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  • Development of Methods for Stereoselective Carbon-Carbon Bond Formation

    Creator:
    Wu, Zhenhua
    Abstract:
    Three distinct methods to achieve the stereoselective synthesis of carbon-carbon bonds were investigated, encompassing: (i) the formation of axially chiral biaryl molecules by enantioselective Suzuki cross-coupling, (ii) the synthesis of α-phenylalkylboronic esters by enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling of enantioenriched sp³-hybridized carbenoids....
    Resource Type:
    Dissertation
    Full Text:
    were obtained in 35-73% yield and 70-96% ee by reaction of B-alkyl and B-aryl neopentyl glycol

  • Computational Investigation and Prediction of Mechanisms and Stereocontrol in Complex Organic Reactions

    Creator:
    Pattawong, Ommidala
    Abstract:
    Complex organic transformations, such as the addition of pyrrole to ketene using planar chiral organocatalyst (*PPY), the four-component anhydride- Manniach reactions, and the site-selective desymmetrization of meso-1,2-diol, are remarkable synthetic reactions that provide high yield and high selectivity. However, the exact mechanism and origins of stereocontrol for theses synthetic organic...
    Resource Type:
    Dissertation
    Full Text:
    reveal that the local symmetry of ring B and the stereochemistry of vinylogous acid/ester determine the

  • Development, validation and the application of a congener specific photodegradation model for PBDEs

    Creator:
    Zeng, Xia
    Abstract:
    The thermodynamic properties of 39 PBDEs have been calculated using Gaussian 03 on the B3LYP/6-31G(d)//B3LYP/6-31G(d) level. The PBDE congeners' enthalpies of formation increase with increasing number of bromines and show a strong dependence on the bromine substitution pattern. The effects of bromine substitution pattern have been quantitatively studied by GAM...
    Resource Type:
    Dissertation
    Full Text:
    committee members as well as Dr. Max Deinzer, Kristin R. Robrock, Dr. Lisa Alvarez-Cohen and Dr. Peter

  • Photochemistry of 6-alkenyl-2-cyclohexenones : synthetic studies towards precursors of ryanodol

    Creator:
    Wang, Bingbing
    Abstract:
    Regiochemistry of intramolecular [2+2] photocycloadditions of oxygenated 6-alkenyl-3-alkoxy-2-cyclohexenones is studied. Application of this methodology to construct a key intermediate [3.3.2] bicyclic skeleton of ryanodol is described as well. Irradiation of (3-butenyl)compounds 3, 11, 14 and of (4-pentenyl)compound 6 afforded exclusively the linear photoadducts 4, 12, 15 and 7 respectively. Irradiation...
    Resource Type:
    Masters Thesis
    Full Text:
    , Chanokporn Phaosiri, Mari Martin, Kristin Ziebar for their friendship. To the past and present members of

  • Poly- and perfluorinated alkyl substance release from landfills and landfill model reactors

    Creator:
    Allred, Brent McKay
    Abstract:
    Research and public concern of poly and perfluoroalkyl substances (PFASs) as environmental contaminants has increased significantly due to the increasing number of reports of their detection in humans and wildlife. PFASs have a number of commercial applications including surfactants, coatings, polymers, and levelers, which are used on consumer products like...
    Resource Type:
    Dissertation
    Full Text:
    focused and extraordinary efforts: Monica Best, Alix Robel, and Kristin Marshall. Ancillary to this work

  • 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:
    design. Additionally, Dylan B. Fast aided in collecting and analyzing Pair Distribution Functions (PDF

  • Development of novel analytical methods to detect emerging contaminants in aqueous environmental matrices using large-volume injection

    Creator:
    Backe, Will J.
    Abstract:
    It is the responsibility of humans, as environmental stewards, to monitor our impact on the environment so that efforts can be made to remediate the effects of our actions and change behaviors. To better understand our environmental footprint, sensitive and simple analytical methods are needed to quantify the contaminants that...
    Resource Type:
    Dissertation
    Full Text:
    ; Garrett; Jared and Lindsey; Heather; Aaron; Amanda; Maicie; Norm, Steve, and Kevin; Kristin; Coe; Ashley

  • 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:
    ............................................................. 64 APPENDIX B Supporting Information for Chapter 5

  • 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:
    ............................................... 110 APPENDIX B Supporting Information for Chapter 4

  • Venturing Beyond Crystallinity and Into Amorphous Space : A Na-ion Battery Perspective

    Creator:
    Bommier, Clement
    Abstract:
    As scientists, we have an affinity for order: repeating crystal structures, Euclidean space, continuous functions… Even concepts such as defects are discussed in the context of distracting from order. Things are most logical and best described in straightforward, taxonomical fashion. But what happens when the very application desired is dependent...
    Resource Type:
    Dissertation
    Full Text:
    built on. Lastly, and most of all, I would like to thank Kristin, for all your support, and always