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Ua66/7/2 Newsletter, Wku Chemistry

WKU Archives Records

Newsletter created by and about the WKU Chemistry department.

Separation Of Copper (Ii) And Silver (I) By Differential Rates Of Extraction & Extraction Rate Studies Of Copper(Ii), Jon Hines

Masters Theses & Specialist Projects

It was the purpose of this work to study the extraction of Cu(II) and Ag(I) with dithizone in chloroform. This particular pair of elements was chosen for study for several reasons. The most prominent of these reasons is that these two elements are found together in nature and are often found combined in manufactured products. Being in the same periodic group, they exhibit similar chemical characteristics making them difficult to separate without special procedures. These similar chemical characteristics make the analysis of these elements difficult when in the presence of each other. Finally, it is of importance that both elements …

The Reactions Of Carbyl Sulfate With Weak Organic Bases, Cheryl Geiger

Masters Theses & Specialist Projects

The objective of this thesis is the study of the reactions of carbyl sulfate with two classes of weak bases: alcohols and nitriles. Of lesser maonitude the thesis will present a syncpsis of the probable mechanism of the reactions of carbyl sulfate.

Electron Transfer Rate Between Cobalt(Ii)-Cobalt(Iii) Polypyridyl Complexes In Nonaqueous Solvents, William Prow

Masters Theses & Specialist Projects

Numerous studies have been made in recent years on electron transfer reactions of transition metal complexes which proceed by either an inner- or an outer-sphere mechanism. However, except for the Fe(II)/ Fe(III) isotopic electron exchange system, few of the studies have been conducted in other than aqueous media. This study was undertaken to examine solvent effects on redox reactions of transition metal complexes which proceed by an outer-sphere mechanism.

During this study, the electron exchange rate between the bis(2,2',2"-tripyridyl)cobalt(II) complex and the tris(2,2'-dipyridyl) cobalt(III) complex was measured in a number of nonaqueous solvents. Rate measurements were made at three or …

The Intensity Of Ligand Absorption, Shing-Bong Chen

Masters Theses & Specialist Projects

The ultraviolet absorption spectra of a number of aryl phosphines and amines and transition metal complexes of triphenylphosphine have been determined. These data indicate that the intensity of the Õ* ¬ Õ phenyl ring transition is not only sensitive to the central atom attached to the ring but is also affected by the metal ion in the complex. Since the degree of covalency depends on the degree of back donation, the oxidation state of the metal ion was found to be the most important factor in determining the intensity of the absorption. The more covalent the metal-phosphine bond, the lower …

Kinetic Properties Of Partially Purified Isocitrate Dehydrogenase, Devji Dedhia

Masters Theses & Specialist Projects

Within the past few years kinetic studies of NADP⁺- specific isocitrate dehydrogenase have been conducted extensively following isolation from bacteria, yeast and vertebrates. However, the kinetic properties of NADP⁺ - specific isocitrate dehydrogenase have not been adequately characterized in filamentous fungi. Therefore, the present study was undertaken to examine the kinetic behavior of partially purified NADP⁺ - specific isocitrate dehydrogenase enzyme isolated from Phycomyces blakesleeanus.

During this study Michaelis constants (Km) and maximum velocities (Vmax) were determined for threo-Ds-isocitrate, NADP⁺, and Mn²⁺ as well as the number of binding sites of these …