Index Catalog // ScholarsArchive@OSU

Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

Creator:: Flynn, Joshua
Abstract:: Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
Resource Type:: Dissertation
Full Text:: Joshua Flynn for the degree of Doctor of Philosophy in Chemistry presented on March 7, 2017. Title

Total synthesis of (-)-7-epicylindrospermopsin

Creator:: Hansen, Joshua D.
Abstract:: The first asymmetric synthesis of (-)-7-epicylindrospermopsin via intramolecular nitrone cycloaddition is described. The synthesis utilized a convergent approach to prepare the cycloaddition precursor 176, which was assembled by condensation of hydroxylamine 175 with aldehyde 145. Hydroxylamine 175 was synthesized from ethylene glycol (166) in seven steps. Aldehyde 145 was completed...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Joshua D. Hansen for the degree of Doctor of Philosophy in Chemistry

A fused salt electrochemical method for the separation of cobalt and nickel

Creator:: Nissen, Donald Andrew
Resource Type:: Dissertation
Full Text:: t'rewritor. TABLE OF CONTENTS Chapter P3ge I. INTRODUCTION i A. Eleotroreí'trithg il B

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

Creator:: Aspitarte, Lee, McCulley, Daniel R., Bertoni, Andrea, Island, Joshua O., Ostermann, Marvin, Rontani, Massimo, Steele, Gary A., and Minot, Ethan D.
Abstract:: Ion pairs and solubility related to ion-pairing in water influence many processes in nature and in synthesis including efficient drug delivery, contaminant transport in the environment, and self-assembly of materials in water. Ion pairs are difficult to observe spectroscopically because they generally do not persist unless extreme solution conditions are...
Resource Type:: Article
Full Text:: . McCulley1, Andrea Bertoni2, Joshua O. Island3, Marvin Ostermann3, Massimo Rontani2, Gary A. Steele3 and

Intensity oscillations in the carbon 1s ionization cross sections of 2-butyne

Creator:: Carroll, Thomas X., Zahl, Maria G., Børve, Knut J., Sæthre, Leif J., Decleva, Piero, Ponzi, Aurora, Kas, Joshua J., Vila, Fernando D., Rehr, John J., and Thomas, T. Darrah
Abstract:: Carbon 1s photoelectron spectra for 2-butyne (CH3C CCH3) measured in the photon energy range from threshold to 150 eV above threshold show oscillations in the intensity ratio C2,3/C1,4. Similar oscillations have been seen in chloroethanes, where the effect has been attributed to EXAFS-type scattering from the substituent chlorine atoms. In...
Resource Type:: Article
Full Text:: . Børve,2 Leif J. Sæthre,2 Piero Decleva,3 Aurora Ponzi,3 Joshua J. Kas,4 Fernando D. Vila,4 John J. Rehr

Part I: Total Syntheses of Mandelalide A and Isomandelalide A. Part II: Role of π-Stacking on Sharpless Dihydroxylation of cis-Enynes: Synthetic Studies Toward All Carbon Macrocyclic Mandelalide B

Creator:: Ghosh, Ankan
Abstract:: Part I of this dissertation includes the chronological synthetic background of mandelalide A as well as the synthesis of the C1-C14 glycosylated southern subunit of mandelalide. A key aspect of the synthesis includes a novel silver-catalyzed cyclization (AgCC) of a propargylic benzoate to construct the substituted cis-pyran ring system present...
Resource Type:: Dissertation
Full Text:: Dihydroxylation of cis-Enynes: Synthetic Studies Toward All Carbon Macrocyclic Mandelalide B. Abstract

CO₂ capture from wet flue gas using a water-stable and cost-effective metal-organic framework

Creator:: Loughran, Ryan P.
Abstract:: We report the use of MIL-120 as a water-stable and cost-effective metal-organic framework (MOF) for selectively capturing CO₂ from wet flue gas. Synthesized using inexpensive and environmentally benign reagents in water, MIL-120 possesses one-dimensional pores decorated with hydroxyl-bridged Al(III) ions and benzene rings with an interstitial spacing of 4.78 Å....
Resource Type:: Masters Thesis
Full Text:: experiments and interpreted the data. Dylan B. Fast performed the Le Bail fitting for the VP-PXRD study

Synthesis of two subunits of avermectin B1a

Creator:: Dantanarayana, Anura Pathmasiri
Abstract:: Avermectins are a group of potent anthelmintic agents produced by Streptomyces avermitilis. They are active at extremely low dosages and are now in commercial use. In this study, the synthesis of two segments of avermectin B[subscript 1a] are described. The synthesis of the hexahydrobenzofuran subunit (segment A) began with the...
Resource Type:: Dissertation
Full Text:: before was unsuccessful in this case. The synthesis of segment B was initiated with the enantio

Studies towards the total synthesis of (-)-gymnodimine

Creator:: Wang, Guoqiang
Abstract:: Studies towards the total synthesis of (-)-gymnodimine (1), a marine neurotoxin with a unique molecular architecture and pronounced biological activity, are described. These studies resulted in a convergent approach to the advanced intermediate 315, containing the C3-C32 section of 1. Two synthetic routes were developed to construct the tetrahydrofuran subunit...
Resource Type:: Dissertation
Full Text:: Chow, Juris Fotins, Uwe Grether, Joshua D. Hansen, Bryan B. Hauser, David Ihie, Jungchul Kim, Eric A

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Creator:: Neuhaus, George F.
Abstract:: The study of natural products (NPs) and their application has shaped humanity. Starting with the idea of using plants as medicine, it has now grown into the science of purifying and identifying organic molecules from nature to study their inherent biological activities. Understanding the molecular structures of NPs is the...
Resource Type:: Dissertation
Full Text:: newly discovered metabolite named ustusoic acid B (3.5) and stromemycin (3.6). Chapter four highlights

ScholarsArchive@OSU

Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

Total synthesis of (-)-7-epicylindrospermopsin

A fused salt electrochemical method for the separation of cobalt and nickel

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

Intensity oscillations in the carbon 1s ionization cross sections of 2-butyne

Part I: Total Syntheses of Mandelalide A and Isomandelalide A. Part II: Role of π-Stacking on Sharpless Dihydroxylation of cis-Enynes: Synthetic Studies Toward All Carbon Macrocyclic Mandelalide B

CO₂ capture from wet flue gas using a water-stable and cost-effective metal-organic framework

Synthesis of two subunits of avermectin B1a

Studies towards the total synthesis of (-)-gymnodimine

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search