Physical Sciences and Mathematics Commons^™

Attempted Rearrangement Of N-Nitrosolactams, Richard Albert Dybas

Honors Theses

This research was concerned with the preparation and subsequent atempted rearrangement of 5,8-dimenthyl-N-nitrosohydrocarbostyril (I).

Quiet-Mercury-Pool Voltammetry Of Copper In Aluminum Alloys, Winfield Scott Bigelow

Honors Theses

Several workers have demonstrated the analytical usefulness of the quiet-mercury-pool. Voltammetry at the QMP possesses a considerable advantage in sensitivity over "ordinary" polarography. Its demonstrated potentialities have prompted this study into the possibility of developing a technique, based on the quiet pool, for the routine determination of copper in aluminum alloys.

Tellurium (Vi): Polarography And Polyol Complexes, Peter T. Kissinger

Honors Theses

In 1782 the element tellurium was discovered by Baron Franz Joseph Miller Von Reichenstein. Muller first isolated the element from Transylvanian gold ore (2). Klaproth verified this work and in 1978 proposed that the substance be called tellurium. The etymology of the work begins with the Latin noun tellus, meaning earth. Students of Roman mythology will recall the ancient deity, Tellus, goddess of marriage and fertility. The history of the discovery of tellurium is a particularly interesting one. Serious students of the element will enjoy reading the account given by Mary Eliva Weeks (3, 4, 5). Telluric acid is a …

Basicity As A Function Of Water Concentration In Mixed Solvent, Dimethysulfoxide-Water Solution, Philip Mauro French

Honors Theses

The pH and pOH functions of, respectively, acid and base are meaningful measures of the acidity of dilute—i.e. up to about one Molar—solitons. Outside this range however, they are almost useless, and the establishment of other measure of acidity is necessary. Unfortunately, the results were far from conclusive, and, if anything opposed to the hypothesis. It seems safe to conclude that the use of aldehydes as an indicator series is prohibited in solution containing DMSO. Too many such indicators are totally barred from usage by its strong absorption below 260 mμ. Even those which were available for study yielded completely …

Cyclooctatrieneium Dicarbonium Ion, Carl George Seefried Jr.

Honors Theses

The peculiar group of chemical molecules termed aromatic have had particular significance in all fields of chemistry because of the unusual reactions they undergo. These reactions occur because of the additional stabilization energy that these molecules possess. This stability arises from the arrangement of delocalized π - electrons in the molecules.

A Study Of Sodium Phenylsiliconate, John Henry Daane

Honors Theses

The application of modern silicone chemistry knowledge and new analytical techniques to the elucidation of the structure of the hitherto uncharacterized, crystalline salt, sodium phenysiliconate, has been achieved. This salt, produced in 1914 by J. A. Meads and F. S. Kipping,. had been left structurally uncharacterized. This thesis builds upon the early work by applying to the problem the recent knowledge developed by J. F. Brown, Jr., and coworkers at the General Electric Research Laboratory.

Derivatives of the salt were made and characterized by a variety of analytical techniques. The silanols produced by the acidification of the sodium phenylsiliconate are …

A Donor Function For Methanolic Sodium Methanolic Sodium Methoxide Solutions, Edgar William Knaub

Honors Theses

A directly measured donor function was determined in .1 to 5 molar methanolic sodium methoxide solutions at 25 degree celsius using three of the substituted benzaldehyde indicators that were used by MacGregor to develop a donor function for aqueous alkalide hydroxide solutions.

Platinized Asbestos As A Fuel Cell Electrocatalyst, Howard Irwin Zeliger

Honors Theses

Platinized asbestos electrocatalysts were prepared by a variety of procedures. These catalysts were incorporated into test electrodes which were electrochemically evaluated in hydrogen - oxygen ambient temperature fuel cells. Catalysts were further scrutinized by the measurement of their specific platinum surface areas, and by the examination of electron micrographs of the materials. Fabrication procedure and composition of platinized asbestos containing electrodes were optimized, and fuel cell performances of electrodes containing the test catalysts were compared with the specific platinum surface areas of the catalysts.

The Kolbe Electrolysis Of Benzoic Acid, David Perry Beiter

Honors Theses

The synthesis of diphenyl from benzoic acid was accomplished by the Kolbe electrolysis. The complete inhibition, as found in aqueous solvents, was thus overcome by using the non-aqueous solvents, was thus overcome by using the non-aqueous mixture of pyridine and diethylamine. However, the yield was not sufficient to warrant consideration of the Kolbe electrolysis as a synthetic method, until improvements are made. Suggestions were offered for the possible increase in the yield of diphenyl. Should reasonably high yields be achieved, the method could be applied to the synthesis of substituted diphenyls.

Rapid Quantitative Analysis Of Basic Amino Acids By Ion Exchange Resin Paper Chromatography, John Ennis Coutant

Honors Theses

In partition chromatography a solid is used to hold a film of liquid and the distribution of a substance is between the liquid phase and another immiscible liquid phase. Because most substances have slightly different distribution coefficient between two immiscible solvents, a series of successive extractions will cause a separation. This is the predominant factor in the paper chromatography. The paper itself is an inert support holding a stationary aqueous phase. As the immiscible solvent flows past an area containing the solute, by capillary flow, partition occurs. When the immiscible solvent reaches an area not containing any solute, partition again …

Electrophoretic Analysis Of The Interaction Of Adenosinetriphosphate With Actomyosin, William Gordon Hunt

Honors Theses

The phenomenon of muscular contraction has long been of particular interest to physiologists, biochemists and pharmacologists. Much work has been done in an effort to elucidate the chemical interactions and the mechanisms of converting chemical energy to mechanical work in muscle. The application of electrophoresis to biological problems evolved rapidly after Tiselius adapted the electrophoretic apparatus in 1937. The modern apparatus for free flowing moving boundary work with its low temperature bath, U-tubes with precision ground optical faces and the ingenious schlieren optical system constitutes a powerful method for molecular-level research.

Nuclear Magnetic Resonance Analysis Of Benzimidazole, Frank Willmott Williams

Honors Theses

The original project was concerned with the determination of the product of the reaction of an alcohol and vanadium 8-hydroxyquinolae. Because of the low solubility of the vanadium compound, this project had to be abandoned. It was then decided to make a detailed NMR spectra study on a single compound.

A Study Of The Dichlorobis [1,10 Phenathroline] Complex Of Cobalt (Iii), John Orville Ruid

Honors Theses

One of the major fields of inorganic chemistry deals with complex ions or molecules and is called coordination chemistry. A complex ion is merely a central ion, usually a metal, surrounded by a cluster or atoms, ions, or molecules of another species, covalently bound to the central ion.The significance of these compounds can be sensed when one realizes that the hemoglobin of blood and the chlorophyll of the green of plants are both complex ions. Chlorophyll has.magnesium as a central ion while the central ion of hemoglobin is iron.

Polarographic Investigation Of Several Tetrakis 1, 3-Diketone Europium Chelates In Acetonitrile, Samuel Lee Jeanjaquet

Chemistry and Chemical Biology ETDs

This study is concerned with the polarographic behavior of several tetrakis 1, 3-diketone chelates of europium and of the 1, 3-diketone ligands in acetonitrile. Such a study should reveal the following: (a) whether the europium (III) in the complexes is reduced directly to the metal, or if reduction to europium (II) takes place followed by reduction to the metal; (b) whether ligands are released during the reduction step(s) and if so, how many; (c) whether the polarographic behavior is such that dissociation constants of the complexes or complex ions can be determined by measuring the shift in half-wave potential as …

Scaling In Carbon Monoxide And Nitrogen, Jerry Goodisman

Chemistry - All Scholarship

No abstract provided.

Aryl Pseudohypochlorites - Some Reactions With Lewis Acids, Frederick Charles Schwab

Honors Theses

Several aryl hypochlorites were prepared by the action of chlorine on the sodium salts of substituted phenols. Infrared and ultraviolet spectral data confirmed a rearrangement of the resulting hypochlorites into ortho and para quinoid forms

Frledel-Crafts reactions were carried out with the pseudohypochlorites with either benzene or benzene or anisole. Aluminum chloride was used as the catalyst. Analysts of these reactions showed two concurrent but distinctly different reactions taking place. In one case, the pseudohypochlorites acted as a source of chloronium ions, causing chlorination of the solvent and regenerating the original substituted phenol. In the other reaction, it appeared that …

Multiple Trace Element Assay By X-Ray Fluorescence, Richard Pierre Koshakji

Archived Theses and Dissertations

No abstract provided.

Nature Of Non-Biological Decomposition Of Nitrite In Acid Media, Mukkatira Kariappa Mahendrappa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Curiosity is the cause of investigations, and the thirst for knowledge originates from it. Many times at the end of investigations, the number of questions raised are greater than those for which answers are sought. Therefore, all the information gathered through scientific investigations may not be of value for immediate application in practical life. Nevertheless, no research can be considered less important than the other because the integration of several scientific findings considered less less important at the time of investigation may reveal something of very high significance. Similarly, the study of various transformation reactions that the added fertilizers undergo …

Refinements In The Isomer Distribution And Relative Rate Of Sulfonation Of Toluene And Hydrochlorination Of Olefins With Stannic Chloride Catalyst, David George Guillot

Theses and Dissertations

The sulfonation of toluene at -12.5° C. with sulfur trioxide in liquid sulfur dioxide was found to give 10.03 ± 0.20 % ortho, 0.73 ± 0.20 % meta and 89.24 ± 0.20 % para isomers. This isomer distribution was determined by isotope dilution analysis using sulfur-35 enriched sulfur trioxide. After dilution of aliquots of the neutralized sulfonation mixture with pure sodium salts of each of the isomers prepared from the corresponding toluidines, the isomers were converted to the p-toluidine salts, purified by recrystallization, and counted by liquid scintillation counting. The relative rate of sulfonation of toluene compared to benzene was …

Studies On The Ribosomal Ribonucleic Acids From Mesophilic And Thermophilic Bacteria, Alice A. Holazo

Masters Theses

Introduction

Certain organisms have been known to live at temperatures at which cellular constituents ordinarily sensitive to heat are destroyed. These organisms. called thermophiles (heat-loving), normally live at higher temperature range of the biokinetic zone (10^o-45^oC).

Hydrolysis Of Benzohydroxamic Acid, Robert L. Fuller

Masters Theses

Introduction

The hydroxamic acids were discovered in 1869 by H. Lossen¹. The nomenclature, structure, and chemistry of these compounds have been summarized in an excellent review article by Yale².

A Method For The Determination Of Solanesol In Tobacco, Ludwig Weissbecker

Master's Theses

The object or this work was to develop a procedure for the quantitative determination of solanesol in the petroleum ether extract of tobacco. The amount of tobacco extracted into petroleum ether is routinely used to differentiate tobacco types. The extraction procedures have been extensively studied by the Association of Official Agricultural Chemists (AOAC) and reported in the United States Department of Agriculture (USDA) Technical Bulletin # 1186.

There is at present no method for the quantitative determination of solanesol. One procedure which comes closest, involves an infrared measurement of the tobacco extract. Because of the presence of other bands, the …

Spin-Resonance Transitions Of Free Radicals In The Zeeman Region, Juana Vivó Acrivos

Juana Vivó Acrivos

No abstract provided.

Egg Shell Quality, R J. Bishop

Journal of the Department of Agriculture, Western Australia, Series 4

Recent overseas work and local industry developments indicate that the calcium content of feed for laying hens in Western Australia should be increased to achieve satisfactory egg shell strength.

Age, temperature and breeding are other important influences on egg shell quality.

Some Properties Of Cerium Borate And Phosphate Glasses In Relation To Structure, M Osama El-Bayoumi

Archived Theses and Dissertations

No abstract provided.

A Study Of Some Properties Of As2S3 Glass And The Test Of A New Theory Of Glass Formation, Edward Nashed Bolous

Archived Theses and Dissertations

No abstract provided.

The Synthesis Of Benzyl N-Carbobenzoxy Beta-D-Glucosaminid Uronic Acid Derivatives, Stuart Martin Block

University of the Pacific Theses and Dissertations

The purpose of this research is the preparation and characterization of derivatives of benzyl N-carbobenzoxy-β-D-glucosaminiduronic acid. Previously the derivatives of benzyl N-carbobenzoxy-α-D-glucosaminid-uronic acid have been prepared by H. Weidmann and H. K. Zimmerman (32). The procedure upon which both these uronic acid syntheses is based has been developed with the utilization of platinum in the selective catalytic oxidation of both the benzyl α- and β-D-glucuronosides. The applicability of this research is in the development of new intermediates for the preparation of new diamino sugars or other natural products.

Capillary Behavior Of Viscous Liquids, Marvin De Young

University of the Pacific Theses and Dissertations

A major problem confronting every investigator who works with synthetic organic chemistry is that of the crystallization of the products obtained. This problem necessitates extensive attention both on the experimental and on the theoretical level. In order to gain an understanding of the behavior of substances in the liquid state, so as to be better able to manipulate them in procedures intended to induce crystallization from complex mixtures, considerable attention has been given to various models of the liquid state. An understanding of the nature of pure liquids would seem to be an essential prelude to any attempt to understand …

The Synthesis Of 4-Spiro-2-Aryloxazolines Of Potential Pharmacological Interest, Paul Waddell Collins

Theses and Dissertations

Numerous and diverse physiological actions are found among 2-oxazoline compounds. No reports of the synthesis or biological testing of 4-spiro-2-aryl-2-oxazolines were found in the literature. On the basis of the known pharmacological activities of certain aza- and diazaspirans, it was felt that 4-spiro-2-aryl-2-oxazolines should possess medicinal activity. In particular, it was reasoned that the combination in a bicyclic spiro structure of the 2-oxazoline ring with rings systems commonly found in synthetic antitussive compounds might result in active antitussive agents.

The aim of this research was the synthesis of a series· of 2-aryl-2-oxazoline-4-spirocyclopentanes and a series of 1'-methyl-2-aryl-2-oxazoline-4-spiro-4’-piperidines. Six members were …

Spin-Resonance Transitions Of Free Radicals In The Zeeman Region, Juana Vivó Acrivos

Faculty Publications, Chemistry

No abstract provided.