Search Constraints

Start Over
Filtering by: Creator Coakley, J. A., Jr. Remove constraint Creator: Coakley, J. A., Jr. Academic Affiliation Chemistry Remove constraint Academic Affiliation: Chemistry License All rights reserved Remove constraint License: All rights reserved

Search Results

  • 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:
    1.5 References 1(a) Bringmann, G.; Mrtimer, A. J. P.; Keller, P. A.; Gresser, M. J.; Garner, J

  • Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

    Creator:
    Ruiz-Haas, Peter A.
    Abstract:
    New methods, sensors, and devices based on redox indicators were developed to monitor redox conditions in anoxic and anaerobic laboratory systems and the subsurface environment. The primary application was monitoring redox conditions during the dechlorination of tetrachioroethene (PCE) to ethene (ETH) in packed columns and microcosm bottles containing an enriched...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Peter A. Ruiz-Haas for the

  • Beginning the search for the inverse fission of uranium

    Creator:
    Beckerman, John R.
    Abstract:
    The nuclear reaction ¹⁰⁰Mo(¹²⁴Sn,xn)[superscript 224-x]U has been carried out at E[subscript cot] of 578 MeV and 634 MeV using the facilities and equipment at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL) in order to initiate the search for the inverse fission of uranium. Reference...
    Resource Type:
    Masters Thesis
    Full Text:
    for possible evaporation residues. A bismuth target was employed to attempt to obtain a background

  • Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

    Creator:
    Surta, Todd Wesley, Jr.
    Abstract:
    Two perovskite materials (Bi0.5(A)0.5)(Sc0.5Nb0.5)O3, where A = K+ and Na+ were synthesized phase pure for the first time. Their structures were determined by indexing synchrotron X-ray diffraction data and subsequent combined Rietveld refinement on neutron and synchrotron X-ray diffraction data revealing significant disorder on the A-sites of these materials. A...
    Resource Type:
    Dissertation
    Full Text:
    Jr. A DISSERTATION submitted to Oregon State University

  • High quantum-yield phosphors via quantum splitting and upconversion

    Creator:
    Jeong, Joayoung
    Abstract:
    The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
    Resource Type:
    Dissertation
    Full Text:
    pathways labeled a through j. Processes a through d are shown displaced downward by 2500 cm-1 reflecting

  • Measuring in situ reductive dechlorination rates in trichloroethene-contaminated groundwater

    Creator:
    Hageman, Kimberly J.
    Abstract:
    Trichloroethene (TCE) is the most frequently detected organic contaminant in groundwater, is classified as a probable human carcinogen, and exhibits toxicological effects on the human endocrine, immune, developmental, and reproductive systems. While significant research efforts have been devoted to the development of strategies for remediating TCE-contaminated groundwater, their advancement is...
    Resource Type:
    Dissertation
    Full Text:
    DECHLORINATION RATES IN TRICHLOROETI{ENE-CONTAMINATED GROUNDWATER by Kimberly J. Hageman A DISSERTATION

  • Natural and semi-synthetic compounds with biocidal activity against arthropods of public health importance

    Creator:
    Khasawneh, Mohammad A.
    Abstract:
    This study identified new compounds with pest control activities. The two sources of candidates that were followed here were the main heartwood extract of Alaska Yellow Cedar (AYC) constituents and several semi-synthetic counterparts. Five compounds were isolated and identified for the first time in AYC heartwood in this research: two...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Mohammad A. Khasawneh for

  • Aqueous niobium chemistry at low pH : new precursors for oxide thin films

    Creator:
    Park, Deok-Hie
    Abstract:
    Phosphate and peroxide stabilize new oxo-hydroxo niobium clusters in water at low pH. The clusters open a new chapter in aqueous niobium chemistry under acidic conditions. The clusters also produce atomically smooth, amorphous niobium oxide phosphate (NbPOx) thin films. Reaction pathways from cluster solutions to amorphous niobium oxide phosphate solids...
    Resource Type:
    Dissertation
    Full Text:
    interpretation of FT-IR data in Chapter 5. Melanie A. Jenkins and Prof. John F. Conley Jr. contributed to the

  • Synthesis and investigation of layered oxides with honeycomb ordering

    Creator:
    Schmidt, Whitney L.
    Abstract:
    Synthesis and discovery lies at the core of every field in chemistry. The investigation of the structure-property relationships in compounds known or new is the fundamental purpose of solid state chemistry. Mixing related solid state compounds to form solid solutions can lead to exciting new and/or unexpected properties. Layered compounds...
    Resource Type:
    Dissertation
    Full Text:
    direction of the lattice parameter shifting is a result of the distortion from J-T Cu2+ and is opposite of

  • Synthesis and study of oxides and chalcogenides : thin films and crystals

    Creator:
    Park, Sangmoon
    Abstract:
    Several types of solid-state inorganic materials are prepared and characterized. By using the SILAR (Successive Ionic Layer Adsorption and Reaction) deposition method in conjunction with hydrothermal dehydration both low-temperature deposition and crystallization of oxide thin films are achieved. Various aspects of new transparent p-type materials are studied by examining both...
    Resource Type:
    Dissertation
    Full Text:
    Chalcogenides: Thin Films and Crystals. Abstract approved: Douglas A. Keszler Several types of solid-state