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Chemistry

Theses/Dissertations

1978

Institution
Keyword
Publication

Articles 31 - 34 of 34

Full-Text Articles in Physical Sciences and Mathematics

Nucleophilic Substitution At Phosphorus In Six-Membered Ring Phosphate Esters, Mike Bauman Jan 1978

Nucleophilic Substitution At Phosphorus In Six-Membered Ring Phosphate Esters, Mike Bauman

Electronic Theses and Dissertations

From these results the following conclusions may be drawn: 1. The stereochemistry of nucleophilic substitution at phosphorus is influenced by the basicity of the leaving group with the more basic leaving group favoring retention. 2. Lithium ion diverts the reaction to retention by forming an intimate ion-pair with the nucleophile which then attacks phosphorus. This associated ion is less reactive than the unassociated nucleophile. 3. For the retention mechanism the leaving group participates in the rate determining step. 4. The mechanism for retention entails a more sterically unfavorable configuration than for inversion.


Studies On The Gas Given Off By Yeast When It Goes From An Anaerobic To Aerobic Metabolism, David C. Potts Jan 1978

Studies On The Gas Given Off By Yeast When It Goes From An Anaerobic To Aerobic Metabolism, David C. Potts

Electronic Theses and Dissertations

Several investigators have observed that when yeast cells (yeast) go from a strictly anaerobic environment to an aerobic oner and glucose is added a negative value is recorded on the manometer. This phenomenon indicates that a gas has been given off by the yeast. The purpose of this research was to identify the gas and determine how it arises.


Reduction Of 1,2 Cyclopentanedione With Lithium Aluminum Hydride, David Curtis Winn Jan 1978

Reduction Of 1,2 Cyclopentanedione With Lithium Aluminum Hydride, David Curtis Winn

Dissertations, Theses, and Masters Projects

No abstract provided.


The Synthesis And Characterization Of Several Copper (Ii) Complexes Of Quinuclidinone-Containing Ligands. Possible Models For Type I Copper Blue Proteins., Victor Thomas Wilcox Jan 1978

The Synthesis And Characterization Of Several Copper (Ii) Complexes Of Quinuclidinone-Containing Ligands. Possible Models For Type I Copper Blue Proteins., Victor Thomas Wilcox

Masters Theses

Several copper (II) complexes with bidentate quinuclidinone containing ligands have been synthesized and characterized. These complexes appear to be possible models for the type I copper (II) in the copper "blue" proteins. The spectral and magnetic properties indicate that the complexes have a pseudo tetrahedral microsymrnetry about the central metal ion. The complexes contain chromophores of the following forms: CuN4, CuN2O2, and CuN2x2, where X is either Cl or Br. While the spectra of these complexes lack the intense 17,000 cm-1 band typical of copper "blue" proteins, the optical …