Index Catalog // ScholarsArchive@OSU

Hydrogen abstraction from substituted t-butylbenzenes

Creator:: Harvey, Robert Louis
Abstract:: A study of the relative rates of the alkyl hydrogen abstraction from a series of meta and para substituted t-butylbenzenes by the chlorine atom at 70°C has been carried out. Application of the Hammett equation yielded a ρ value of -0.44 for the para compounds. Possible explanations for the non-linearity...
Resource Type:: Masters Thesis
Full Text:: ", , -2 Typed by Carolyn Irving for Robert Louis Harvey ( j /W ?C('t ACKNOWLEDGEMENTS The author

The photodecomposition of t-butyl bicyclo [7.1.0] decane-2-percarboxylate

Creator:: McRitchie, Donna Louise
Abstract:: This paper describes the synthesis of t-butyl bicyclo[7.1.0] decane-2-percarboxylate and its photolytic decomposition. The title compound was found to undergo simple homolytic cleavage when exposed to light of 2537 A; producing the cyclodecyl radical, carbon dioxide, and t-butoxy radical. The largest percentage of products arose from an intimate radical pair...
Resource Type:: Masters Thesis
Full Text:: department) (Date) Title: The Photodecomposition of t-butyl Bicyclo[7.1.0]decane-2- percarboxylate

Comprehensive, Low-Cost Wicking Microfluidic Analytical Devices for Clinical Diagnostics and Environmental Analysis

Creator:: Bandara, Gayan C.
Abstract:: Analytical techniques are utilized in a wide variety of applications. Traditionally, analytical measurements are achieved by trained personnel in a laboratory setting using expensive scientific instruments, which limits their applicability in resource-limited areas and point-of-care applications. Therefore, the concept of enabling these laboratory-based qualitative and quantitative assays in microfluidic device...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Vincent T. Remcho Analytical techniques are utilized in a wide variety

Simple models for the structure and dynamics of polyatomic fluids

Creator:: James, Corinne Patricia
Abstract:: Three areas of liquid state theory are considered. First, Monte Carlo computer simulation of a two-dimensional hard disk fluid with an imbedded ellipse was undertaken to determine how a non-spherical molecule affects intermolecular ordering. The elliptical molecule (with axial ratios of 2, 5 and 10) altered the isotropic distribution of...
Resource Type:: Dissertation
Full Text:: (1905). 9 4. P. E. Rouse, J. Chem. Phys. 21, 1272 (1953); B. H. Zimm, ibid 24, 269 (1954). 5. G. T

An evaluation of charge generation in hydrogen atom abstraction processes: the reaction of homoaryl and heteroarylmethanes with t-butoxy radical

Creator:: Mahiou, Belaid
Abstract:: The relative rates of hydrogen atom abstraction from a series of 13 homoaryl and heteroarylmethanes by t-butoxy radical were determined at 70°C. The attacking radical was photochemically generated from di-t-butyl peroxide. A relatively small range of relative rates (factor of seven) has been found among the compounds studied. The relative...
Resource Type:: Masters Thesis
Full Text:: abstraction processes: the reaction of homoaryl and heteroarylmethanes with t-butoxy radical AN ABSTRACT OF

Advanced studies on the biosynthesis of the streptolidine moiety of streptothricin F

Creator:: Jackson, Michael D.
Resource Type:: Dissertation
Full Text:: HOCO2H CO2H OH NH2 HN<J, N co HHH 2 15 CO2H HO} t COH H CO2H HNN H2N CO2H LO H2Nco2H CO2H CO2H

Gas phase x-ray photoelectron spectroscopy of some ketone compounds

Creator:: Situmeang, Rudy T. M.
Abstract:: The photoelectron spectra of a series of ketone compounds have been investigated in the gas phase. Core ionization energies were measured to probe the effects of molecular size and connectivity number on core ionization energies. It was found that core ionization energies roughly decrease with increasing connectivity number as expected....
Resource Type:: Masters Thesis
Full Text:: would like to express my sincerest appreciation and gratitude to Distinguished Professor T. Darrah

Novel approaches to enhancing selectivity and efficiency in microscale liquid chromatography

Creator:: Vallano, Patrick T.
Abstract:: For a number of reasons, miniaturization of chromatographic columns has been a general trend over the past three decades. Methods designed to enhance selectivity and efficiency can offer improved separation power and speed, expanding on the advantages of miniaturized columns. This dissertation describes novel approaches in this direction, focusing on...
Resource Type:: Dissertation
Full Text:: quantified by the following equation, which assumes Gaussian peaks: 2 fN=-16I--J (1.2) a2 Wb) where t,. is

Functionalization of carbon nanotubes for effective biosensing and potential biomedical applications

Creator:: Adenuga, Adeniyi A.
Abstract:: Since their discovery in the 1990s, the great potential of carbon nanotubes (CNTs) has made them a focus of many research endeavors, including their application as components of biosensors. The inherent chemical "inertness" of CNTs makes their application to biosensing a challenge. It is necessary to "decorate" their surfaces to...
Resource Type:: Dissertation
Full Text:: Applications Abstract approved: Vincent T. Remcho Since their discovery in the 1990s, the great

Design, fabrication and application of a microfluidic nanofiltration module for separation and purification of macromolecules and nanoparticles

Creator:: Rundel, Jack T.
Abstract:: A microfluidic nanofiltration module has been designed, fabricated and applied to the continuous-flow, pressure-driven, post-synthetic purification of macromolecules and nanoparticles via diafiltration using a commercially available organic solvent resistant nanofiltration membrane, STARMEM 122. This module will readily interface with other microscale components within a "nanofactory" for the rapid synthesis, purification...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Jack T. Rundel for the degree of Doctor of Philosophy in Chemistry

Laser patterned porous-media microfluidic analytical devices : fabrication methods and applications in bioassays

Creator:: Sumantakul, Saichon
Abstract:: The concept of reducing laboratory operations into microfluidic devices has been an attractive area of research for several decades. Due to several advantages of porous-media microfluidic devices including low mass, portability, power-free fluid transport, and the ability to store dried reagents in the porous structures, these devices show great promise...
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ Vincent T. Remcho

Organic-solvent resistant ultrafiltration and nanofiltration membrane modules for separation and purification of nanoparticles

Creator:: Kim, Taehyeong
Abstract:: The intriguing size- and shape dependent properties of nanoparticles have garnered recent attention in many science and engineering areas. When the particle size is in the nanometer size range, the material exhibits very different properties such as surface plasmon resonance (of gold nanoparticles) and superparamagnetism (of iron oxide nanoparticles). The...
Resource Type:: Dissertation
Full Text:: , Adv. Colloid Interface Sci. 145 (2009) 1-22. [14] W. J. Koros, Y. H. Ma, T. Shimidzu, J. Membr

Carbon Nanodots as Biolabels for Fluorescence Immunoassays

Creator:: Wu, Yuanyuan
Abstract:: There has been a tremendous growth in interest in carbon nanodots (C-dots) in the past several years. As a nascent nanomaterial, C-dots have shown great promise in applications that benefit from their superior water dispersibility, low toxicity, non-blinking fluorescent output, chemical and biological compatibility, ease of functionalization and resistance to...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Vincent T. Remcho There has been a tremendous growth in interest in carbon nanodots (C

Semiconductor Nanocrystals as Detection Components in Microfluidic Analytical Systems

Creator:: Pengpumkiat, Sumate
Abstract:: Miniaturized and portable microfluidic analytical platforms have been widely explored in the broad field of chemical analysis. The concept of microfluidics offer a number of important advantages, including low reagent consumption, low-cost detection, high sample throughput, and shorter analysis time. Semiconductor nanocrystals or quantum dots have been extensively utilized in...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ Vincent T. Remcho

Satellite structure in the gas-phase X-ray photoelectron spectra of planar unsaturated molecules

Creator:: Chambers, Scott Alexander
Abstract:: The satellite structure ("shake-up") present in the X-ray photoelectron spectra of several planar molecules containing double bonds has been investigated in the gas phase. This set consists of three five-membered heterocyclic molecules, ethylene and two of its fluorinated analogs, and benzene with three of its fluorinated analogs. In addition, core...
Resource Type:: Dissertation
Full Text:: Abstract approved: T. Darrah Thomas The satellite structure ("shake-up") present in the X- ray

Gas phase x-ray photoelectron spectroscopy of compounds containing multiply-bonded oxygen

Creator:: Smith, Steven Reid
Abstract:: A new x-ray source capable of operating at up to 80 watts has been designed and developed, and put to use with the Oregon State University Cylindrical Electrostatic Analyzer. The new source produces over four times the photoelectron intensity of its predecessor, from gaseous samples, and accommodates a wider selection...
Resource Type:: Dissertation
Full Text:: Privacy T. Darrah Thomas A new x-ray source capable of operating at up to 80 watts has been designed

Photoelectron spectroscopy of small molecules

Creator:: Bomben, Kenneth D.
Abstract:: The photoelectron spectra of a series of halogenated molecules have been investigated in the gas phase. Both core-ionization energies and Auger kinetic energies were measured to probe the nature of the interaction that holds a core electron to the molecule. It was found that satellite structure (shake) could be used...
Resource Type:: Dissertation
Full Text:: (T. Darrah Thomas) The photoelectron spectra of a series of halogenated molecules have been

The oxidation of trimethylamine by copper (II) chloride

Creator:: Lane, Thomas Alfred
Abstract:: This research was on the irreversible oxidation of trimethylamine by copper(II) chloride, which takes place at temperatures of about 75° and higher. The coordination of trimethylamine by copper(II) chloride, which is a preliminary reaction to the oxidation, was studied at 0°. The coordination of trimethylamine by the potential reduction product,...
Resource Type:: Masters Thesis
Full Text:: ., B.W. Good, W.W. Porterfield, and J. T. Yoke, J. Amer. Chem. Soc., 95, 4555 (1973) 3. Biltz, W., Z

Synthesis and characterization of novel stationary phases for small scale liquid chromatographic separations of proteins and nanoparticles

Creator:: Hutanu, Daniela
Abstract:: The emerging field of nanotechnology strictly requires the micro-scaling of the available separation technology and the design of novel devices for separations of molecules of interest. The separation of proteins and nanoparticles is challenging due to their relatively large size, non-specific adherence to surfaces and instability in many solvents. This...
Resource Type:: Dissertation
Full Text:: approved: Vincent T. Remcho The emerging field of nanotechnology strictly requires the micro

The oxidation of triethylamine by thallium(III) chloride

Creator:: Arneson, Robert Lawrence
Abstract:: The oxidation of triethylamine by the two electron oxidant thallium(III) chloride was studied and the results compared to those when triethylamine is oxidized by copper(II) halides. This study requires anhydrous conditions since in an aqueous system thallium(III) chloride is extensively hydrolyzed and triethylamine causes precipitation of thallium(III) oxide. Most of...
Resource Type:: Masters Thesis
Full Text:: advisor, Dr. John T. Yoke, whose guidance was always available when it was needed. I also acknowledge my

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Creator:: Chatterjee, Esha
Abstract:: Continued interest in the development of miniaturized and portable analytical platforms necessitates the exploration of sensitive methods for the detection of trace analytes. Nanomaterials, on account of their unique physical and chemical properties, are not only able to overcome many limitations of traditional detection reagents but also enable the exploration...
Resource Type:: Dissertation
Full Text:: Nanocrystals and Magnetic Beads as Labels Abstract approved: Vincent T. Remcho Continued

High-resolution X-ray photoelectron spectroscopy of CO₂ and other small molecules

Creator:: Hahne, Jeffrey A.
Abstract:: The carbon is photoelectron spectrum of CO₂ has been measured with very high photon energy resolution. The natural lifetime of the carbon is hole state has been determined from a series of spectra taken at photon energies of 308, 320, and 330 eV. The measured values of the lifetimes show...
Resource Type:: Masters Thesis
Full Text:: the method outlined by J. Jauhiainen et al. [19], we determined that 1 .trans a t., (2 7

Electrochemical studies of liquid chlorocuprates(I)

Creator:: Silkey, James R.
Abstract:: This research emphasized fundamental physical and electrochemical studies of systems based on the room temperature fused salt, triethyl-ammonium dichlorocuprate(I). Such systems, which must be maintained under a protective atmosphere, were also used in some preliminary battery studies. Spectra of dark green solutions of copper (II) chloride in triethylammonium dichlorocuprate(I) obey...
Resource Type:: Masters Thesis
Full Text:: ) chloride. ACS Reagent Grade copper(II) chloride dihy- drate (J. T. Baker or Mallinckrodt) was used without

Some transition metal complexes of trivalent phosphorus esters

Creator:: Studer, Harry Vaughn
Resource Type:: Masters Thesis
Full Text:: OF TRIVALENT PHOSPHORUS ESTERS Redacted for Privacy Abstract approved: Dr. In T. Yoke r The

The autoxidation of dichlorobis(triethylphosphine)cobalt(II)

Creator:: Schmidt, Donald Dean
Resource Type:: Dissertation
Full Text:: of triethyl phosphate (Eastman Kodak) and diethyl ethylphosphonate (J. T. Baker) were distilled at

From electrophoresis to dielectrophoresis: designing, fabricating, and evaluating an electroformed ratchet type microfluidic dielectrophoresis device

Creator:: Gonzalez, Carlos F.
Abstract:: Dielectrophoresis (DEP) is a separation method in which a non-uniform electric field is used to induce a dipole moment in a suspended particle. If the polarization of the particle is greater than that of the suspending medium, the particle will move towards the region of higher field strength (positive DEP);...
Resource Type:: Dissertation
Full Text:: : Vincent T. Remcho Dielectrophoresis (DEP) is a separation method in which a non-uniform electric

Reactions of triethylphosphine and relatecd phosphonium chlorides with copper (I) and copper (II) chloride

Creator:: Axtell, Darrell Dean
Resource Type:: Dissertation
Full Text:: his research advisor, Dr. John T. Yoke, for his expert guidance of this research. Special thanks are

Magnetic particles for selective extraction of trace analytes in microfluidic devices

Creator:: Tennico, Yolanda H.
Abstract:: The development of micro total analysis systems (µTAS), also called “lab-on-a-chip”, or microfluidic analysis systems, is presented in this dissertation. Various research areas, covering subjects from magnetic particles synthesis to novel microchip fabrication techniques, are explored to develop a lab-on-a-chip system capable of performing magnetic bead-based bioassays. These devices are...
Resource Type:: Dissertation
Full Text:: Analytes in Microfluidic Devices Abstract approved: Vincent T. Remcho The development of

Preparation and characterization of n-octadecylcycloazadiboron

Creator:: Heusser, Roger Karvel
Abstract:: A preparative method for a new compound n-octadecylcycloazadi-boron (CAB), in high yield has been developed. CAB was isolated as an intermediate in the octadecylamine-catalyzed hydrolysis of pentaborane. The most probable structure of CAB can be regarded as a derivative of the three membered ring cycloazadiboron with a n-octadecyl group substituted...
Resource Type:: Masters Thesis
Full Text:: gratitude to Dr. T. D. Parsons for the direction and inspiration bestowed during the pursuit of this work

Tertiary phosphorus esters : their reaction with dioxygen, their complexes with cobalt(II) chloride, and the catalysis of their autoxication by cobalt(II)

Creator:: Hwang, Wen-shu
Resource Type:: Dissertation
Full Text:: CoC12.3EtP(OEt)2 at -46 o in t-butylbenzene and is not lost at -23° after vacuum line freeze - pump - thaw

Polylcaprolactone-Based Microfluidic Devices : Fabrication Methods and Applications in Low-Cost Analytical Devices

Creator:: Heist, Christopher A.
Abstract:: The overall concept of reducing laboratory operations to a scale that fits on a single microfluidic chip has been an attractive area of research over the last several decades. Despite a surge in research, few commercial success stories have been written. Lab-on-a-chip technologies have the capability to be cost effective...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Vincent T. Remcho The overall concept of reducing laboratory operations to a scale that

X-ray photoelectron spectroscopy of trifluoromethylbenzenes and chlorofluoromethanes

Creator:: Holmes, Steven Allen
Abstract:: The core-electron ionization potentials for mono- and di(trifluoromethyl)benzene, for chlorofluoromethanes and for chlorine have been measured in order to give information on the electron distribution in these molecules and to investigate differences between the inductive effect of fluorine and that of CF3. For trifluoromethylbenzene the measured ionization potentials in eV...
Resource Type:: Masters Thesis
Full Text:: particular, T. X. Carroll, R. W. Shaw, Jr., and J. S. Jen, have not only added to my understanding of the

RNA and DNA aptamers as affinity stationary phases for liquid chromatography and capillary electrochromatography

Creator:: Clark, Stacey L.
Abstract:: Due to a number of disadvantages associated with the use of antibodies as affinity stationary phases, researchers have recently began to explore the use of RNA and DNA aptamers for use as affinity stationary phases. These molecules have been shown to be a viable choice for applications in many methods...
Resource Type:: Dissertation
Full Text:: : Vincent T. Remcho Due to a number of disadvantages associated with the use of antibodies as affinity

Centrifugal Partition Chromatography, Microfabrication, and a Smartphone-based Detection Platform : Analytical Chemistry from Preparative-scale Separation to Micro-scale Analysis

Creator:: Boonloed, Anukul
Abstract:: Analytical chemistry is an area of chemistry primarily focused on the study and use of instruments for separation, identification, and quantification of an analyte of interest. Specifically, separation science within analytical chemistry often refers to the process of dividing mixtures into their small component parts based on differences in their...
Resource Type:: Dissertation
Full Text:: Analysis Abstract approved: ______________________________________________________ Vincent T

Inner-shell lifetimes of small gas-phase molecules

Creator:: Coville, Mary
Resource Type:: Dissertation
Full Text:: Gas-Phase Molecules. Abstract approved: T. Darrah Thomas Theoretical calculations and scattered

Cobalt (II) complexes of Tertiary phosphorus esters : studies of spin state and coordination number equilibria, and of the autoxidation reaction

Creator:: Joedicke, Ingo Bernd
Resource Type:: Dissertation
Full Text:: ) Chemical shift, ppm from H3PO4. (e) Axtell and Yoke (1973). (f) H. V. Studer and J. T. Yoke, unpublished

Studies of low melting 1-methyl-3-ethylimidazolium chlorocuprate(I) fused salts

Creator:: Bolkan, Steven A.
Resource Type:: Dissertation
Full Text:: conductivity Ka maximum at T(= 0.50. The temper- ature variations of viscosity and conductivity obey the

Exchange reactions in liquid sulfur dioxide

Creator:: Johnson, Rowland Edward
Resource Type:: Dissertation
Full Text:: bringing it to a successful co.mple'tion. Also we would like to acknowledge the help given by Dr. J

Catalysis of the isotopic exchange reaction between thionyl chloride and liquid sulfur dioxide

Creator:: Burge, David Edwin
Resource Type:: Dissertation
Full Text:: studies, t author expresses his thanks to Professor T. h. Norris. Thanks are z1so expressed to J. C

Novel monolithic columns for microscale liquid chromatography and capillary electrochromatography

Creator:: Chirica, Gabriela S.
Abstract:: The challenges prompted by miniaturization of chromatographic systems have led scientists to explore new avenues in the synthesis of stationary phases. Packed capillary columns have found limited application in routine analysis due to a number of technical difficulties, most of which are attributable to the frits. New column designs insure...
Resource Type:: Dissertation
Full Text:: T. Remcho The challenges prompted by miniaturization of chromatographic systems have led

Monolithic sorbents for microscale separations

Creator:: Doneanu, Angela
Abstract:: Over the last decade, the miniaturization of analytical systems has become an increasingly important and interesting research area. Miniaturized systems offer many advantages, including reduced reagent and sample consumption, shorter analysis times, portability and disposability. This dissertation describes novel approaches in this direction, focusing on two areas: the miniaturization of...
Resource Type:: Dissertation
Full Text:: . Chromatogr. A, 1998, 806, 251. 12. Adam, T.; Unger, K.K.; Dittmann, M.M.; Rozing, G.P. J Chromatogr. A, 2000

High temperature solubility of sulfur dioxide in concentrated sulfuric acid

Creator:: Doherty, Patrick Earl
Resource Type:: Masters Thesis
Full Text:: ipplications might exist. a Norris, T. H. and 13. J. W'asters. Kinetics of Isotopic 1xchange 1enction

Experimental and theoretical investigation of the ability of oxygen-containing molecules to accept charge

Creator:: Siggel, Michele Ruth Fisher
Abstract:: The question of why carboxylic acids and phenols are stronger acids than alcohols has been investigated experimentally and theoretically. The experimental approach involves comparison of gas-phase acidities and core-ionization energies. The theoretical treatment uses calculated point potentials and acidities. The ease of proton removal is related to two factors known...
Resource Type:: Dissertation
Full Text:: given by dE = t(X)edqx = [ I.(X) a'qxe J edqx (2) The gas-phase acidity, A, will be given by

Isotopic exchange reactions between thionyl chloride and sulfuryl chloride

Creator:: Bain, Ralph Lee
Resource Type:: Dissertation
Full Text:: (Name) (Degree) (Major) Date thesis is presented ," L: I5 j(,i(y' / Title ISOTOPIC EXCHANGE

Radiosulfur exchange studies in the liquid sulfur dioxide--thionyl fluoride system

Creator:: DeGroot, Peter Bernard
Resource Type:: Dissertation
Full Text:: Privacy I T. H. Norris A system of gas chromatographic separation of the components of the radio

Synthesis of the boron-boron bond

Creator:: Schaad, Lewis Hyde
Resource Type:: Masters Thesis
Full Text:: Jr:ne 1954 ACKNOWLEDGEMEN T The author extends to Dr. T.D. Parsons his appreciation for the

The kinetics of the sulfur (IV) - sulfur (VI) isotopic exchange reaction in aqueous and concentrated acid solutions

Creator:: McDonald, Ray Locke
Resource Type:: Dissertation
Full Text:: . Sulfur(J) - Sulfur(IV) Exchange . . . . . . . .57 C. Volume Corrections . . s . . I s ..... 57 D

Employing capillary electrophoresis as a separation method for pharmaceutical analysis

Creator:: Lessard, Laura L.
Abstract:: Capillary electrophoresis as a technique has many applications in a broad range of fields including forensics, environmental analysis, and biological analysis and as a separation method for samples such as oligonucleotides, peptides, proteins, and pharmaceuticals. The research conducted herein is for the antibiotic pharmaceutical ciprofloxacin HCl and three impurities. Sample...
Resource Type:: Masters Thesis
Full Text:: Separation Method for Pharmaceutical Analyses Abstract approved: Vincent T. Remcho Capillary

Isotopic exchange reactions in sulfur monochloride

Creator:: Wiggle, Ronald Rene
Resource Type:: Masters Thesis
Full Text:: valuable suggestions. Dr. T. H. He also and many il General ..... ...1I Radioactive Assay and

Isotopic exchange reactions in sulfur oxyhalides

Creator:: Johnson, Leroy Franklin
Resource Type:: Masters Thesis
Full Text:: beginning of the exchange. -iu.80 loo I T J J I >-0 z i o -o ZW I--'60 i L04O I- 9

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