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Honors Theses

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Articles 1891 - 1920 of 2158

Full-Text Articles in Physical Sciences and Mathematics

Kinetic Study Of The Autocatalytic" Photodeboronation Of Benzeneboronic Acid In Phosphoric Acid Media, Bradley C. Bockrath Jun 1965

Kinetic Study Of The Autocatalytic" Photodeboronation Of Benzeneboronic Acid In Phosphoric Acid Media, Bradley C. Bockrath

Honors Theses

Kinetic studies are often valuable in the investigation of reaction mechanisms. They can reveal the molecularity of a reaction and perhaps give an indication of possible intermediate steps. Comparisons of rate studies, such as kinetic isotope effects, can indicate the rate determining step of a reaction. Finally, rate studies can reveal when changes in reaction mechanism accompany changes in one or more kinetically significant variables. This study investigates the possibility of a new or altered reaction mechanism as one kinetic variable is changed. The reaction of interest is the hydrolysis of benzeneboronic acid in concentrated phosphoric acid media.

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The Preparation Of 2-Aryl-3-Methyl-4-Metathiazanones And 2-Aryl-3-Methyl-4-Thiazolidones, John Charles Wilson Jun 1965

The Preparation Of 2-Aryl-3-Methyl-4-Metathiazanones And 2-Aryl-3-Methyl-4-Thiazolidones, John Charles Wilson

Honors Theses

It had been found that 3-mercaptopropanoic acid would react readily with ammonia or primary amines yielding Schiff bases which when reacted aryl aldehydes would give 2 and 2,3 disubstituted 4-metathiazanones. The report included a variety of substituted benzaldehydes, pyridyl and thienyl carboxaldehydes, ammonia, and alkyl and aralkylamines.

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Frederic Joliot-Curie And Atomic Energy By Pierre Biquard Pp. 109-211, Donald Printest Watkins Apr 1965

Frederic Joliot-Curie And Atomic Energy By Pierre Biquard Pp. 109-211, Donald Printest Watkins

Honors Theses

This is a translation of pages 109-211 of the biography Frederic Joliot-Curie Et L'energie Atomique by Pierre Biquard.

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Coordination Compounds And Complex Ions, Carole Nelson Jan 1965

Coordination Compounds And Complex Ions, Carole Nelson

Honors Theses

Coordination compounds and complex ions are an important and practical part of fundamental chemistry. Their composition and formation should be understood by a chemistry student.

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Aspects Of The Reactions Of Aliphatic Methoxydiazoketones, Francesco Gioacchino Belli Jun 1964

Aspects Of The Reactions Of Aliphatic Methoxydiazoketones, Francesco Gioacchino Belli

Honors Theses

It was the purpose of this research to investigate the cyclization of the aliphatic methoxydiazoketohe, 1-diazo-4-methoxy-4-penyl-2-butanone (I), when treated with BF3 in ether.

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Separation And Radiochemical Study Of Molybdic And Tungstic Oxides, John Hotchkiss Boles Jun 1964

Separation And Radiochemical Study Of Molybdic And Tungstic Oxides, John Hotchkiss Boles

Honors Theses

In the work presented here, tungsten and molybdenum are precipitated and chemically separated as much as is possible. The products are collected and irradiated with thermal neutrons and the concentration of tungsten determined. In this way only that tungsten forming a complex or dissolving into the molybdenum crystal will be measured.

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A Proposed Method Of Separation And Analysis Of The Au(Cn)2 And Au(Cn)4 Complexes, Richard Edward Beane Jun 1964

A Proposed Method Of Separation And Analysis Of The Au(Cn)2 And Au(Cn)4 Complexes, Richard Edward Beane

Honors Theses

Due to its relative scarcity, gold has always held a high value to civilizations compared to other metals which are more common and easier to obtain. Various methods of extraction of the metal have been used throughout history, the most successful of which are washing and dissolution. The most important method of recovery at the present time is dissolution by cyanidation. In order to study the electron exchange between the Au(CN)-2 and Au(CN)-4 complexes, it must be possible to obtain both separately, mix them together in solution, separate them once again, and distinguish between the two complexes to determine the …

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Synthesis Of The Bicyclo-(5,5,0)-Dodecane System, Anthony Angelo Gallo Jun 1964

Synthesis Of The Bicyclo-(5,5,0)-Dodecane System, Anthony Angelo Gallo

Honors Theses

The bicycle-(5, 5, 0)-dodecane system consists of two fused seven membered rings. (I) The numbers five, five and zero are arrived at by the fact that counting the number of carbon atoms from one bridgehead carbon to the other yields five, five and zero by the three possible routes. This system can exist in several states of unsaturation. One such state has been given the name heptalene. (II) The object of this project is to propose a new synthesis of the bicycle-(5, 5, 0)-dodecane system.

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On The Recovery Of The Nitrates Of Uranyl Ion And Silver (I) Ion From Laboratory Residua, Bruce Bertolette Hardman Jun 1964

On The Recovery Of The Nitrates Of Uranyl Ion And Silver (I) Ion From Laboratory Residua, Bruce Bertolette Hardman

Honors Theses

Uranium became known in the same epoch of history that saw the discovery of the planet Uranus. It was so named. Uranium is a rather active element and never occurs free in nature. Its ores include uraninite is by far the most important. This ore is sometimes called pitchblende and has a simplest empirical formula of UO2. Due to the fact that it is always found partially oxidized its composition may range between that of UO2 and U3O8. This latter form contains both tetra and hexavalent uranium. An illustrative structure is given below. It is sometimes regarded as uranyl uranate, …

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An Examination Of Basicity Functions, Lewis Morton Gedansky Jun 1964

An Examination Of Basicity Functions, Lewis Morton Gedansky

Honors Theses

Acids and bases have long been subjects of interest to the chemist. These two classes of chemical compounds play an important role in the chemical world in regards to their reaction with each other and their use as catalytic agents. They are known to react with each other in either of two ways. The reaction which is most familiar is the standard neutralization reaction which results in the formation of a salt and water. It can be illustrated by the reaction of an acidic substrate, HA, reacting with the base, sodium hydroxide. Such a reaction conforms with the Bronsted-Lowry definition …

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The Determination Of The Ratios U234/U238 And Th228/Th232 As Leached From Storm King Granite, James Robert Lawrence Jun 1964

The Determination Of The Ratios U234/U238 And Th228/Th232 As Leached From Storm King Granite, James Robert Lawrence

Honors Theses

In nature there are three major decay series that involve naturally occurring uranium and thorium as parent nuclides. Two of the three series; U-238, TH-232 and U-235; are shown in figure I. Of the three series two, U-238 and the Th-232 series, are examined in the study. This is because the amount of U-235 in nature is very small relative to the amount of U-238 and Th-232. This study is concerned with the presence of U-238 and Th-232 and their uranium, thorium and radium daughter products in the silicic intrusive rock, Storm King Granite. Uranium and thorium have large iconic …

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Heats Of Solution Of Saturated Mixed Electrolytes, Stephen Alan Rudolph Jun 1964

Heats Of Solution Of Saturated Mixed Electrolytes, Stephen Alan Rudolph

Honors Theses

Reliable data on heats of solution of concentrated mixed electrolytes is a rather scarce. This work purports to give formulas for the heat of solution at saturation of an electrolyte in a solution saturated with respect to still another electrolyte. These formulas are in terms of solubility data and non-calorimetric thermodynamic data and are as follows.

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Phosphoric Acid - Catalyzed Hydrolysis Of Benzeneboronic Acid, Kenneth Sumner Jun 1964

Phosphoric Acid - Catalyzed Hydrolysis Of Benzeneboronic Acid, Kenneth Sumner

Honors Theses

At a phosphoric acid concentration of over 80%, the kinetics are not first - order, but instead, the reaction appears to be autocatalytic. Is it the purpose of this research to determine if this phenomenon is real, and if so, to elucidate the cause of the autocatalysis.

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Attempted Preparation Of 1-Diazo-6-Methoxy-2-Hexanone, Edmund Joseph Zalewski Jun 1964

Attempted Preparation Of 1-Diazo-6-Methoxy-2-Hexanone, Edmund Joseph Zalewski

Honors Theses

To show the appreciable yield of cyclic compounds upon treating the methoxydiazokotones with boron trifluoride etherate.

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The Catalytic Decomposition Of Sucrose, Richard Wells Bishop Jun 1964

The Catalytic Decomposition Of Sucrose, Richard Wells Bishop

Honors Theses

The object of this research was to gain enough information from the products of sugar decompositions to allow the proposal of a mechanism for these decompositions. The information on sucrose would be combined with that for glucose and fructose to make this proposal.

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A Hydrogen Electrode Via Ferrous Ion And Ultraviolet Light, Richard Leslie Harlow Jun 1964

A Hydrogen Electrode Via Ferrous Ion And Ultraviolet Light, Richard Leslie Harlow

Honors Theses

The purpose of this research is to investigate the photoelectric properties of an acidified ferrous-sulfate solution. It is known that in the presence of ultraviolet light, the equilibrium is shifted to the right. The idea is proposed that the hydrogen gas produced by this reaction might be absorbed on a platinum grid, thereby creating a hydrogen electrode. A cell is thus proposed in which two platinum electrodes are immersed in the same solution of ferrous sulfate and sulfuric acid. The area surrounding one electrode is to be illuminated with ultraviolet light. Some of the hydrogen gas produced in that area …

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An Investigation Of The Ternary System: Magnesium Sulfate - Urea - Water, David Brian Holland Jun 1964

An Investigation Of The Ternary System: Magnesium Sulfate - Urea - Water, David Brian Holland

Honors Theses

Magnesium sulfate hydrate and urea are common constituents of many commercial fertilizers. It is the purpose of this investigation into the ternary system: magnesium sulfate – urea – water to try to resolve these discrepancies and also to further investigate the ternary system.

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Synthesis Of 1-Diazo-3-Methoxy-3-Phenyl-2-Propanone And Reaction With Boron Trifluoride Etherate, Harvey Harris Kagan Jun 1964

Synthesis Of 1-Diazo-3-Methoxy-3-Phenyl-2-Propanone And Reaction With Boron Trifluoride Etherate, Harvey Harris Kagan

Honors Theses

It has been found that the normal reaction of diazoketones with an acid to form substituted methyl ketones is often subverted by cyclization to form closed chain cyclic ketones. Some work has been done with aromatic diazoketones but very little has been done with the aliphatic diazoketones. The object of this research was to bring about ring closure of a four membered ring from an aliphatic diazoketone. It was decided to put a phenyl group on the aliphatic chain in order to obtain crystalline derivatives. Specifically, the object of this work was to bring about the cyclization of 1-diazo-3-methoxy-3-phenyl-2-propane. The …

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Synthesis Of Some Polymers From Benzyl Alcohol Or Its Derivatives, John Oliver Rosser Jun 1964

Synthesis Of Some Polymers From Benzyl Alcohol Or Its Derivatives, John Oliver Rosser

Honors Theses

The original project was concerned with the production of ortho-nitro-para-[w-(β-napthyl)]-ethyl-benzyl alcohol or its alkyl-ether. This was to be accomplished by following a five step synthesis, the first step of which was a Friedel Crafts acylation of methyl-benzyl ether according to reaction (1).

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Synthesis Of 3-(P-Methyl-M-Nitro-Phenyl)-Butyric Acid, Beverly Thomas Adams Jun 1964

Synthesis Of 3-(P-Methyl-M-Nitro-Phenyl)-Butyric Acid, Beverly Thomas Adams

Honors Theses

The purpose of the research reported in this thesis was the synthesis of one of a class of compounds, ω-napthyl-alkyl-substituted nitro benzaldehydes, for use in later work involving photochemistry. The compound chosen was p-(ω-naphthyl-propyl-)-2-nitro-banzaldehyde.

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A Polarographic Analysis Of The Tetracyanoaurate (Iii) And The Dicyanoaurate (I) Complexes, David Jefferson Mcclemens Jun 1964

A Polarographic Analysis Of The Tetracyanoaurate (Iii) And The Dicyanoaurate (I) Complexes, David Jefferson Mcclemens

Honors Theses

A polarographic analysis of the two gold complexes, dicyanoaurate (I) and tetracyanoaurate (III), was undertaken. Both complexes were shown to have distinguishable current-voltage curves. Previous work on the dicyanoaurate (I) was confirmed, and new data was added for the low concentrations. The tetracyanoaurate (III) was investigated, and the half-wave potential was found to be -0.32 volts. Maxima problems with the complex were encountered and resolved.

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Edta Titrations With Mercury Amalgam Indicator Electrodes, Kenneth Deardorff Legg Jun 1964

Edta Titrations With Mercury Amalgam Indicator Electrodes, Kenneth Deardorff Legg

Honors Theses

A study of the characteristics of certain mercury amalgam electrodes as used in these types of analysis has been made. The overall applicability and usefullness of a bismuth-mercury slurry electrode is studied. The effect of several solution conditions on the electrode characteristics has been observed.

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Investigations Into The Diazoketone Synthesis Of 3-Methyl-2-Cyclopentenone, Robert Alan English Jun 1963

Investigations Into The Diazoketone Synthesis Of 3-Methyl-2-Cyclopentenone, Robert Alan English

Honors Theses

This research was carried out in order to determine the effects of both the etherate and anhydrous forms of RF3 catalyst upon l-diazo-4-methyl-4-penten-2-one (I). It was hoped that cyclization could be induced to occur due to the presence of the neighboring olefinic bond. 3-Methyl-2-cyclopentenone, itself had been synthesized by a much more direct method than proposed here. (1)

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The Preparation Of 1, 1'Tetramethylene Ferrocene, Arthur F. Grand Jun 1963

The Preparation Of 1, 1'Tetramethylene Ferrocene, Arthur F. Grand

Honors Theses

The discovery of ferrocene, bis-cyclopentadienyl iron, in 1951 stimulated further research into a relatively new field of Organic Chemistry, organometallies. Ferrocene is the first of a series of transition metal-organic ring compounds in which the metallic atom is bound covalently to two cyclopentadiene rings (Fig III). The rings are superimposed over one another with the single atom inbetween; thus, they are often referred to as “sandwich compounds.” The following procedure is that which Rinehart (11) used to prepare the acid derivative β-ferrocenoylpropionic acid (VII). The preparation consists of adding 7.4 g. of ferrocene and 2.0 g. of succinic anhydride in …

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Addition Reactions Of Quinones, Herman Helber Jun 1963

Addition Reactions Of Quinones, Herman Helber

Honors Theses

The general purpose of this project has been to obtain a knowledge about the reaction of para-benzoquinone when irradiated with ultraviolet light in water or ethanol. The 1, 4, benzoquinone, often called simply quinone, is a yellow crystalline solid melting at 116°C and having a sharp penetrating odor. Quinone shows a marked increase in reactivity when it is irradiated with U.V. A possible explanation for this could be that the electrons in central carbon atoms of the quinone absorb quanta of energy. The resulting excited state could then leas to a free radical formation. This could account for the increased …

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Polarographic Studies Of The Dicyanoaurate And Tetracyanoaurate Complexes, Peter Neddermeyer Jun 1963

Polarographic Studies Of The Dicyanoaurate And Tetracyanoaurate Complexes, Peter Neddermeyer

Honors Theses

A polarographic study of the dicyanoaurate and the tetracyanoaurate complexes has been made. Distinct current-voltage curves were obtained for both complexes with and without supporting electrolyte.Polarography has been shown to be a good quantitative method of analysis for the two gold-cyanide complexes.

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The Effects Of Ph And Salts On The Viscosity Of Protein Solutions, John H. Smith Jun 1963

The Effects Of Ph And Salts On The Viscosity Of Protein Solutions, John H. Smith

Honors Theses

The purpose of this work was to determine, as a function of pH, the viscosity of gelatin solutions containing various monovalent anions. The sequence of these anions in their ability to depress viscosity, that is, the Hofmeister or Lyotropic series of anions, will be validated for the following salts: Sodium bromide, sodium iodate, sodium formate, sodium chloride and sodium nitrate.

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A Preliminary Investigation Of The Photo-Induced Rearrangement Of Phenylnitromethane And Problems In Its Synthesis, Peter Barry Fleming Jun 1963

A Preliminary Investigation Of The Photo-Induced Rearrangement Of Phenylnitromethane And Problems In Its Synthesis, Peter Barry Fleming

Honors Theses

As originally envisioned, this project was to involve the synthesis of phenylnitromethane and the subsequent photolysis of that compound. It was hoped that identification and separation of the photochemical products would lead to some basic conclusions regarding inter- and intra- molecular photo-induced rearrangements. Some light might also be thrown on energy transfer in a system of non-conjugated double bonds. Comparison of the products obtained from phenylnitromethane and higher homologs of the series, where n = 2,3,4 with the known reaction nitrobenzene could lead to conclusion on structure versus products and structure versus efficiency of energy transfer along an alkyl chain. …

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Investigation Into The Reactions Of Aliphatic Methoxydiazo-Ketones Upon Treatment With Boron Trifluoride Etherate, Donald Paul Hoster Jun 1963

Investigation Into The Reactions Of Aliphatic Methoxydiazo-Ketones Upon Treatment With Boron Trifluoride Etherate, Donald Paul Hoster

Honors Theses

This research was a study of the possible cyclization reactions of the aliphatic methoxydiazoketones (I) and (II) upon treatment with BF3 etherate. Previous work in this area had dealt with aromatic systems. J. Moore and H. Shaffer (10) showed that 1-diazo-3-(o-anisyl)-2-propanone (III) is converted in about 35% yield to chromanone (IV) upon treatment with BF3. They obtained lesser amounts of chromanone and larger amounts of open chain products when mineral acids were employed. Diazoketones such as (V) and (VI) have shown a pronounced tendency to form four-membered rings upon treatment with mineral acids. (8) No open chain products were isolated …

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The Thermal, Catalytic Decomposition Of Sugar, Herman Carl Kluge Jun 1963

The Thermal, Catalytic Decomposition Of Sugar, Herman Carl Kluge

Honors Theses

During the past year, an attempt was made to determine the products of a thermal decomposition of both glucose and fructose and also, the effects of certain catalysts upon this decomposition. From these data, an attempt was also made to devise a mechanism for this decomposition.

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