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  • Synthetic Studies towards Highly Oxygenated Furanyl Diterpenoids

    Creator:
    Goswami, Subir
    Abstract:
    The furanyl diterpenoid family of natural products has drawn the attention of both synthetic organic chemists and pharmacologists due to their complex structural architectures and diverse biological activity. Among them, wortmannin has been most extensively studied for biological activities. All these furanyl diterpenoids consist of a highly strained naptha[1,8-bc]furan core,...
    Resource Type:
    Dissertation
    Full Text:
    dissertation_Pretext-Pages-SG-09.28.2018 AN ABSTRACT OF

  • Structure-property relationships of YbFe₂O₄-type layered transition metal oxides

    Creator:
    Grajczyk, Rosa
    Abstract:
    The structure–property relationships of solid solutions within the YbFe₂O₄ family of compounds have been studied in relation to their optical, dielectric and magnetic properties. This family of compounds is of recent interest because of the trigonal bipyramid coordination that is rarely observed in transition metal oxides. The systematic study of...
    Resource Type:
    Dissertation
    Full Text:
    .....................................................................................................63 TABLE OF CONTENTS (Continued) Page 3 Effects of substitutions

  • A new trigonal huntite material and subgroup relationships between crystallographic space groups

    Creator:
    Hruschka, Michael Archimedes and Hruschka, Michael A.
    Abstract:
    The use of an adjacency matrix to determine distant (not maximal or minimal) subgroup and supergroup relationships between crystallographic spacegroup types is described. Full lists of space-group types that are supergroups and subgroups for every space-group type were compiled. A list of the space-group types connected to each space-group type...
    Resource Type:
    Dissertation

  • Using Computational Methods to Elucidate Reaction Mechanisms for Copper Catalyzed Reactions

    Creator:
    Caspary, Katherine E.
    Abstract:
    In this report, two studies are presented that utilize computations to predict and elucidate the reaction mechanisms of two different copper catalyzed reactions. Each study provides insight into the various chemical transformations, as well as the how and why behind regioselectivity and isotopic selectivity. The importance of this research is...
    Resource Type:
    Masters Thesis
    Full Text:
    15N1) Tröger base 61 from 60, and from 62 mono, triple-isotope labelled 1,2,3-triazole Tröger base 63

  • Aryl acetylene substituent effects : the synthesis and application of biaryls

    Creator:
    Naffziger, Michael R.
    Abstract:
    The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
    Resource Type:
    Masters Thesis
    Full Text:
    •DMA, DMF, 140°C; HCl (1M):Et2O (1:1), 97% CHO NO2Cl OTf NaHMDS PhNTf2, THF 0°C, 63%, E:Z = 3:1

  • Analytical Platform to Study Bacterial Metabolism and their Interactions with Biomaterials using SECM

    Creator:
    Sheet, Partha S.
    Abstract:
    The microbial communities play a crucial role in maintaining human health and cause diseases through very complex microbial chemical interactions. Therefore, these microbial communities have drawn much attention to the scientific communities. To elucidate these complex microbial communities and the chemical interactions within it, one or more isolated species of...
    Resource Type:
    Dissertation
    Full Text:
    pH mapping using SECM …………….....................….....…………..………………...63 4.4 Results and

  • Single crystal growth, powder synthesis and characterization of layered chalcogenide semiconductors

    Creator:
    Richard, Annette Pauline
    Abstract:
    This thesis presents basic studies, including structural, optical and transport measurements, on novel chalcogenide powders and single crystals. BiCuOSe crystals have been synthesized for the first time. The crystal structure of BiCuOSe has been refined and the optical band gap has been measured to be 0.83eV. Crystal structure refinements of...
    Resource Type:
    Dissertation
    Full Text:
    Functional Theory ................................ 63 Seebeck Coefficient

  • Mass spectrometry-based identification and characterization of protein and peptide adducts of lipoxidation-derived aldehydes

    Creator:
    Chavez, Juan D.
    Abstract:
    Oxidative stress is recognized as an important underlying factor in the pathogenesis of many degenerative diseases as well as normal senescence. The free radicals, reactive oxygen species (ROS) and electrophiles produced during oxidative stress are capable of modifying nucleic acids, lipids and proteins. There are a variety of oxidative modifications...
    Resource Type:
    Dissertation

  • Chemical labeling methods and mass spectrometry of mitochondrial thiol proteomes

    Creator:
    Wang, Jing
    Abstract:
    Dysfunction of mitochondria has been linked to aging and the pathogenesis of many degenerative diseases. Aside from their primary function in energy production, mitochondria are considered as a major source and target of reactive oxygen and nitrogen species (ROS/RNS) in cells as well. The mitochondrial thiol proteome is a subset...
    Resource Type:
    Dissertation
    Full Text:
    ……..…………….. 63 3.4 Proton affinities of thiol peptides ………………………….……. 64 4.1 Subcellular locations of

  • Application of Density Functional Theory to Exploration of Reactions

    Creator:
    Feoktistova, Taisiia
    Abstract:
    My work has focused on using density functional theory to elucidate mechanisms of organocatalytic and transition metal catalyzed reactions by considering competing mechanisms. In each of the three presented studies computational investigation complemented experimental work by predicting stereoselectivity or revealing origins of stereo, regio, or chemoselectivity. A study on the...
    Resource Type:
    Dissertation
    Full Text:
    ............................................................................................. 63 PBE/6-31G(d)/SMD(toluene