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Ion-pair high pressure liquid chromatography techniques for the determination of quaternary ammonium compounds

Creator:: Starbuck, Brian J.
Abstract:: Quaternary Ammonium Compounds, Qams, are an important class of chemicals which present interesting challenges to analysts. This thesis reports results of investigations on uses of ion-pairing techniques for separations and detection of Qams. Special apparatus for post-column solvent extraction of liquid chromatographic eluates was developed as part of this work....
Resource Type:: Masters Thesis
Full Text:: the determination of quaternary ammonium compounds AN ABSTRACT OF THE THESIS OF Brian J. Starbuck

Heats of immersion and swelling of quaternary ammonium complexes of montmorillonites

Creator:: St. Clair, Akos Dominic
Abstract:: Heats of immersion were obtained for four different organophilic clay complexes in a series of normal alcohol-heptane mixtures with alcohols of increasing chain length. The immersion calorimeter employed was the Dewar type with a sensitivity of approximately 5 x 10⁻⁵°C. Gel volumes were determined for two of the clay complexes...
Resource Type:: Masters Thesis
Full Text:: Heats of Immersion and Swelling of Quaternary Ammonium

Proline sulphonamide-catalysed Yamada–Otani condensation: reaction development, substrate scope and scaffold reactivity

Creator:: Yang, Hua, Banerjee, Somdev, and Carter, Rich G.
Abstract:: The development of a proline sulphonamide-catalysed method for enantioselective and diastereoselective construction of functionalized cyclohexenones is described. Impact of catalyst structure as well as solvent effects and additives are explored. A significant substrate scope is demonstrated by variation of both the aldehyde and the enone components. Diastereoselective derivatization of the...
Resource Type:: Article
Full Text:: quaternary centres are widely present in natural pro- ducts and new methods for their construction continue

Advanced Mass Spectrometry Techniques for Characterizations of Proteome and Lipidome Profiles of Osteosarcoma Cells

Creator:: Song, Zifeng
Abstract:: Mass Spectrometry has emerged as an analytical core technique in omics sciences, in particularly mass spectrometry has advanced the fields of proteomics, metabolomics and lipidomics in recent years. Mass spectrometric techniques have enabled the characterization and determination of abundance levels of a wide range of biomolecules at molecular and system-wide...
Resource Type:: Dissertation

Novel ternary graphite intercalation compounds of alkali metal cations and amines

Creator:: Maluangont, Tosapol
Abstract:: Novel ternary graphite intercalation compounds (GICs) of alkali metal cations and a wide variety of amines have been synthesized by one-pot chemical syntheses. Alkali metals studied includes Li, Na and K. The families of amines employed are nalkylamines, branched alkylamines, and different structural isomers of diamines and polyamines. Intragallery structures...
Resource Type:: Dissertation
Full Text:: analog, Na-EN-GIC, is also prepared and described. We also report quaternary compounds of mixed cations

Rationalization and innovative design of asymmetric organocatalysts through computational investigation

Creator:: Johnston, Ryne Connell
Abstract:: My work on computing complex catalyzed organic transformations reveals that only a few subtle chemical factors, e.g. non-classical hydrogen bonding, (hyper)conjugation and steric effects, common across different catalyst manifolds are critical for catalysis and selectivity. Rational manipulation and exploitation of these factors has led to improved catalyst designs, which has...
Resource Type:: Dissertation
Full Text:: developed for the Michael addition of acrylates to α-ketones to generate asymmetric all-carbon quaternary

Towards the Perfect Marriage Between Theory and Experiments in Drug Discovery and Synthesis : Insights into Structure Determination of Complex Natural Products and Mechanistic Understandings of Lactam Synthesis

Creator:: Snyder, Kevin M.
Abstract:: In this report, three studies are presented that aid in the development of drug discovery and their synthesis. In each, the importance of the marriage between computations and experiments is highlighted. Continued efforts in this vein are essential for future efforts towards improving human health. The first case study investigated...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Kevin M. Snyder for the degree of Master of Science in Chemistry presented on May 17, 2016

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

Creator:: Vellucci, Jessica K.
Abstract:: Aminal radical intermediates were generated by the method of radical translocation and reacted in C-C bond forming reactions with electronically deficient alkenes (Schiedler et al. Org. Lett. 2012, 14, 6092). Aminal radical intermediates can participate in inter- and intra-molecular reactions using both Bu3SnH and (TMS)₃SiH as hydride donors. Carbon–carbon bonds...
Resource Type:: Dissertation
Full Text:: quaternary stereocenter of the natural product. Bromination followed by elimination provided the vinyl

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Creator:: Mansergh, Ryan H.
Abstract:: Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Chemistry and Materials Science presented on June 19, 2017

A comprehensive comparison of transition-metal and actinyl polyoxometalates

Creator:: Nyman, May and Burns, Peter C.
Abstract:: While the d⁰ transition-metal POMs of Group V (V⁵⁺, Nb⁵⁺, Ta⁵⁺) and Group VI (Mo⁶⁺, W⁶⁺) have been known for more than a century, the actinyl peroxide POMs, specifically those built of uranyl triperoxide or uranyl dihydroxidediperoxide polyhedra, were only realized within the last decade. While virtually every metal on...
Resource Type:: Article
Full Text:: Ta; and the acidic POMs of V, Mo and W. This more indepth literature review and discussion reveals

ScholarsArchive@OSU

Ion-pair high pressure liquid chromatography techniques for the determination of quaternary ammonium compounds

Heats of immersion and swelling of quaternary ammonium complexes of montmorillonites

Proline sulphonamide-catalysed Yamada–Otani condensation: reaction development, substrate scope and scaffold reactivity

Advanced Mass Spectrometry Techniques for Characterizations of Proteome and Lipidome Profiles of Osteosarcoma Cells

Novel ternary graphite intercalation compounds of alkali metal cations and amines

Rationalization and innovative design of asymmetric organocatalysts through computational investigation

Towards the Perfect Marriage Between Theory and Experiments in Drug Discovery and Synthesis : Insights into Structure Determination of Complex Natural Products and Mechanistic Understandings of Lactam Synthesis

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

A comprehensive comparison of transition-metal and actinyl polyoxometalates

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