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Full-Text Articles in Physical Sciences and Mathematics
Energy Migration In Rare Earth Complexes, John Jerome Freeman
Energy Migration In Rare Earth Complexes, John Jerome Freeman
Chemistry and Chemical Biology ETDs
Complexes of trivalent samarium, europium, terbium, and dysprosium were prepared for investigations of the luminescence properties of complexed rare earth ions. Rare earth chilates derived from benzoylacetone, dibenzoylmethane, and acetylacetone; rare earth chlorides solvated with water and deuterium oxide; and rare earth oxides dissolved in sodium metaphosphate glasses were synthesized for these studies.
Radiochemical Studies: Isotopic Exchange Reactions, Solvent Effects, Preparation And Properties Of Carrier-Free Amalgams, Hans L. Hamster
Radiochemical Studies: Isotopic Exchange Reactions, Solvent Effects, Preparation And Properties Of Carrier-Free Amalgams, Hans L. Hamster
Chemistry and Chemical Biology ETDs
The work described in this section is concerned with the kinetics of an SN2 reaction, the isotopic exchange reaction between iodide ions and p-nitrobenzyl iodide, carried out in an aprotic solvent, acetone, in the presence of various substituted phenols and anisole. This reaction was carried out at concentration of potassium iodide low enough to insure the absence of ion pairs.
An Investigation Of Steric Inhibition Of Resonance In Liquid Scintillators, Richard L. Taber
An Investigation Of Steric Inhibition Of Resonance In Liquid Scintillators, Richard L. Taber
Chemistry and Chemical Biology ETDs
It is well known that the replacement of two or more of the ortho hydrogen atoms in the benzene rings of biphenyl by lager atoms or groups hinders the rotation about the l.l'-carbon single bond in the biphenyl system. If the groups are so large that they are unable to pass each other upon rotation of the l,l'-bond, then the two benzene rings are forced to assume a non-planar configuration.
Self-Diffusion In Single-Crystal Tungsten And Diffusion Of Rhenium Tracer In Single-Crystal Tungsten, Robert L. Andelin
Self-Diffusion In Single-Crystal Tungsten And Diffusion Of Rhenium Tracer In Single-Crystal Tungsten, Robert L. Andelin
Chemistry and Chemical Biology ETDs
Self-diffusion in single-crystal tungsten and diffusion of rhenium tracer in single-crystal tungsten have been measured over the temperature range 2660 C to 3230 C by the direct sectioning technique. The initial radioactive layer of tungsten and rhenium tracers was produced on the diffusion samples by bombardment with 9. 0-MeV deutrons. It was shown that the initial radioactive layer satisfactorily approximated the boundary-condition requirements of the one-dimensional diffusion equation. The tracers observed in determining the diffusion coefficients were W^185, Re^183, and Re^184.
The Kinetics Of The Hydrolysis Of Some 2-Imidazolines, Bobby G. Harnsberger
The Kinetics Of The Hydrolysis Of Some 2-Imidazolines, Bobby G. Harnsberger
Chemistry and Chemical Biology ETDs
In recent years, 2-imidazolines have become important industrially. Possible applications include uses as drugs, fungicides, emulsifying agents, demulsifying agents, corrosion inhibitors, fuel oil additives and gasoline additives.