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Full-Text Articles in Physical Sciences and Mathematics
Determination Of The Rate Of Formation Of Hcn, Mitchell Hull
Determination Of The Rate Of Formation Of Hcn, Mitchell Hull
Honors Theses
Nitric oxide is a major air pollutant arising from fossil fuel combustion, yet the fuel contribution to its formulation is uncertain. Since, in combustion, fossil fuels undergo disintegration before oxidation takes place, the study of the pyrolsis of a model constituent of fossil fuels can shed light on NO formation. The rate of inert pyrolytic disappearance of pyridine and the rate of formation of the principal Nitrogen-containing pyrolytic product, HCN, was studied in an inert atmosphere. The rate constant for the formation of HCN and its temperature dependence were determined.
The Effect Of Solvent Polarity On The S1-T2 Energy Gap In 9- And 2-Substituted Anthracene Derivatives In Aromatic And Non-Aromatic Solvents, John S. Facci
Honors Theses
Fluorescence quantum yields, fluorescence lifetimes, energies and intersystem crossing activation energies were measured for methyl-2-anthroate and methyl-9-anthroate in various polar, non-polar and aromatic solvents.
The Decomposition Of Phenyl-Benzoyl-Diazamethane And Its Relevance To Alkyne Ozonolysis, Joy A . Sawyer
The Decomposition Of Phenyl-Benzoyl-Diazamethane And Its Relevance To Alkyne Ozonolysis, Joy A . Sawyer
Honors Theses
The thermal or photolytic decomposition of diazo compounds is known to produce a carbonyloxide in the presence of oxygen. Analogously, ∝-diazoketones should produce acyl carbonyloxides. This intermediate is identical to one proposed for the ozonolysis of alkynes and its substantiation is the purpose of this study. By examining the products of the thermal, copper catalyzed phenylbenzoyldiazomethane decomposition, one should be able to determine the intermediate’s presence. Benzoic anhydride, benzil and methyl diphenyl-acetate have been identified as products and tetraphenylglycolide is also thought to be present. Methyl diphenyl-acetate is the result of Wolff rearrangement, while the other three are proposed to …
Mechanisms Of Saponification Of Sterically Hindered Esters By Optical Activity And Kinetic Studies, George A. Walrath
Mechanisms Of Saponification Of Sterically Hindered Esters By Optical Activity And Kinetic Studies, George A. Walrath
Honors Theses
This thesis presents methods for preparation of sterically hindered organic acid esters. The secondary- and tertiary-butyl esters of 2,2’ dimethylpropanoic acid (pivalic acid, neo-pentanoic acid, or trimethyacetic acid) were prepared by suggested methods. The best method proved to be that suggested by Bochkova, Proskuryakov, Pirozhkoc and Eidus, where the esters of neo-acids are prepared through their respective acid chlorides. In the case studies in this thesis, the acid chloride of neopentanoic acid (pivaloyl chloride) was reacted with secondary or tertiary-butyl alcohol. Kinetic studies of the saponification of secondary-butyl pivaloate were made at various temperatures, and from the data obtained, the …
The Study Of Gas Decomposition Due To Laser Stimulation, James A. Burke
The Study Of Gas Decomposition Due To Laser Stimulation, James A. Burke
Honors Theses
A survey of various gases known to emit radiation when pumped with a laser was undertaken to discover whether or no these gases would decompose as a result of the laser stimulation. A literature search provided some previous work in this area but left many gases unstudied. Methanol, 1,1-difluoroethylene, ethanol, methylene chloride and methyl iodide were subjected to laser irradiation, Using an infrared spectrophotometer as a detector, none of these five gases showed clear evidence of decomposition, Because of inherent limitations of the IR detection system, a mass spectrometer was put into operation. Calibration of this instrument was performed, Results …
Synthetic Approaches To Specifically Labeled Dimethyl-Dideuterionaphthalenes, Armand J. Scatena
Synthetic Approaches To Specifically Labeled Dimethyl-Dideuterionaphthalenes, Armand J. Scatena
Honors Theses
The purpose of this work was the study of synthetic approaches to specifically labeled deuterated 1, 4-dimethylnaphthalenes. Alkylation of ortho- and para-dibromobenzenes eventually led to the formation of some 1, 4-dimethylnaphthalene although deuteration was rather poor. Under the conditions employed, much isomerization of Friedel-Crafts products resulted. Not only did the bromines rearrange intramolecularly, but substantial rearrangement of the alkylating moiety may also have occurred. The major products of these reactions were dibromophenylcyclohexanes. It appears from the products obtained by the methods employed in our work that specific monodeuteration rather than specific dideuteration should be used to attain the desired product.
The Carbon Dioxide Laser Induced Decomposition Of Freon 113, Curtland Chester Brown Iii
The Carbon Dioxide Laser Induced Decomposition Of Freon 113, Curtland Chester Brown Iii
Honors Theses
The carbon dioxide laser irradiation of Freon 113, 1,1,2 trichlorotrifluoroethane, yielded Freons 11, trichlorofluoromethane, l2, dichlorodifluoromethane, and 13, chlorotrifluoromethane, along with chlorotrifluoroethylene and unidentified products. Product formation was found to increase as the pressure of the starting material and laser power were increased, although no formal pressure or power dependenry could be determined. The Freon products were identified using a gas chromatograph in the flame ionization mode with a molecular sieve column. Chlorotrifluoroethylene was identified with an infrared spectrophotometer. The buildup of unidentifiPd brown tars was observed on the glass walls of irradiated cells. The pyroysis of Freon 113 has …
Hydrothermal Growth Of Quartz, Samuel J. Casella
Hydrothermal Growth Of Quartz, Samuel J. Casella
Honors Theses
The hydrothermal method of crystal growth utilizes a solvent at high temperature and under high pressure to grow large single crystals. A suitable aparatus was constructed for research ith this unique method.