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Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
The Photolysis Of Phenylglycine And The Synthesis Of Α-Deuterated M-Anisaldehyde, Alan Nathan Meisel
The Photolysis Of Phenylglycine And The Synthesis Of Α-Deuterated M-Anisaldehyde, Alan Nathan Meisel
Honors Theses
Attempts were made to produce mandelic acid by irradiating phenylglycine in both acidic and basic aqueous solutions but no mandelic acid was detected.
Critical Examination Of The Uniform Charge Cloud Method, Frederick R. Maxfield
Critical Examination Of The Uniform Charge Cloud Method, Frederick R. Maxfield
Honors Theses
The Uniform Charge Cloud Method, a model used to describe atoms and molecules, has been investigated. In the model, electrons are viewed as spheres with a constant charge density throughout their volume. In previous studies, it was found that the interelectron repulsion energies calculated for helium were too high, bond distances calculated for molecules were too short, and the model was unable to predict term values in accordance with Hund's Rules. In order to reduce these errors, electron correlation was introduced into the model. It was found that the errors were too large to be corrected by electron correlation. The …
Glycine Carbamate Derivatives, David Clark Cable
Glycine Carbamate Derivatives, David Clark Cable
Honors Theses
The formation of a carbamate on hemoglobin is one method proposed for carbon dioxide transport in the blood. As of yet, no direct method has been reported for quantitatively determining to what extent carbamate formation occurs. The phosphorescence of glycine carbamate is of interest in this problem. Glycine is structurally similar to the globin endings, so that it presents a model that is simpler and more easily studied but still contains a sufficient degree of similarity to hemoglobin for the purpose of studying this reaction. Phosphorescence spectroscopy has been proposed a possible method for direct quantitative analysis of glycine carbamate. …
The Fluorescence And Phosphorescence Of Glycine -- A First Step In The Determination Of Glycine Carbamate, Henry George Fein
The Fluorescence And Phosphorescence Of Glycine -- A First Step In The Determination Of Glycine Carbamate, Henry George Fein
Honors Theses
Cassidy (1) fully outlines the historical progress of research to 1968 about the carbamate reaction; this paper will simply summarize that effort. It is presently believed that carbon dioxide is transported by the blood in three ways: 1) dissolved CO2 and carbonic acid, 2) bicarbonate ions, and 3) carbamate. Roughton and Rossi-Bernardi (10) have proposed the use of a glycylglycine and CO2 model for the carbamate reaction. Instead of the barium precipitate method, they have used a pH and pCO2 electrode system to measure the uptake of CO2. Since the dissolved CO2 and HCO3 can be calculated from the pCO2 …
The Radiolysis Of Aqueous Solutions Of Dichloromethane, Steven Michael Odre
The Radiolysis Of Aqueous Solutions Of Dichloromethane, Steven Michael Odre
Honors Theses
Aqueous solutions of dichloromethane have been irradiated with a cobalt-60 gaama source. Products of the radiolysis have been determined in order to formulate the emchanism of the radiation induced decomposition. Chemical studies have shown that hydrocholoric acid and hydrogen peroxide are two of the major products of the radiolysis. Traces of formaldehyde have also been found. The effect of oxygen and dichloromethane concentrations on product yields was determined. It has been found that the product yields are independent of dose rate. The Proposed mechanism is initiatied by the hydrated electron and the hydroxyl radical - both products of the radiolysis …
Photochemical Reactions Of Some Benzyl Compounds, Thomas Wesley Lesniak
Photochemical Reactions Of Some Benzyl Compounds, Thomas Wesley Lesniak
Honors Theses
Zimmerman and Sandel have investigated many photolytic reactions involving benzyl compounds and have hypothesized the intermediate to be a carbonium ion. The addition of a meta-electron donating group has been used to increase the stability of the carbonium ion intermediate. 3, 5- Disubstituted benzyl carbonium ions have added stability.
Approaches To The Synthesis Of Bis-Acenaphth [1,2-A] Acenaphthene, Kenneth Neal Boudette
Approaches To The Synthesis Of Bis-Acenaphth [1,2-A] Acenaphthene, Kenneth Neal Boudette
Honors Theses
The purpose of this project was the synthesis of bis-acenaphth[l,2-a] acenaphthene. The synthetic route attempted was the preparation of 1,8-naphthalylnaphthalene by reacting 1,8-dilithionaphthalene with acenaphthene- quinone followed by oxidation with lead tetracetate and treatment of the diketone with 1,8-dilithionaphthalene to give the product.
Study Of The Radiolysis Of Aqueous Dichloromethane, Joseph Herbert Dal Pian
Study Of The Radiolysis Of Aqueous Dichloromethane, Joseph Herbert Dal Pian
Honors Theses
Aqueous solutions of dichloromethane have been irradiated with a cobalt-60 gamma source. Products of the radiolysis have been determined in order to formulate the mechanism of the radiation induced decomposition. Chemical analysis of irradiated solutions has shown that hydrochloric acid and formic acid are among the products of the decomposition. The effect of oxygen and dichloromethane concentrations on the production and yield of chloride ion has been determined. From the results, a mechanism for the radiolysis of aqueous dichloromethane in the presence of oxygen has been deduced.
Preparation Of Some Alkynes And Alkenynes, Edward John Lamby
Preparation Of Some Alkynes And Alkenynes, Edward John Lamby
Honors Theses
The following thesis concerns the preparation of several alkynes and their conversion to alkenynes. Alkynes are of interest because of their potential biological activity (1), general reactivity to boranes (2), complexing ability with some transition metals (3), as well as other general reactions of π bonds (4). It was the intention of this investigation to prepare several alkynes with varying degrees of steric hindrance and evaluate the effect of this property. Double bonds were incorporated in several of these compounds to aid in the assessment.