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in publisher: "Pennsylvania State University. Department of Chemistry."  
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Highly nucleophilic acetylide, vinyl, and vinylidene complexes

Description: In the past year we have completed our studies of the halide-promoted carbonylation of imido ligands, extended our explorations of Cp(CO)(L)Mn-X complexes which possess highly reactive acetylide, vinylidene, carbyne, and vinylcarbyne ligands, and have briefly investigated the formation of bimetallic complexes using anionic carbene complexes. 5 figs.
Date: August 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radon: Chemical and physical states of radon progeny. Final technical report

Description: The evolving chemical and physical form of radon progeny influence their transport to the bioreceptor and the extent to which that receptor can take up these species into various tissues. When first born following radioactive decay processes, the potentially deleterious radon progeny undergo various physical and chemical transformations as they transcend from a highly charged to a neutral state, and interact with various constituents of the environment. These transformations impact on the exten… more
Date: December 31, 1996
Creator: Castleman, A. W., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dynamics of initial ionization events in biological molecules: Formation and fate of free radicals. Final technical report, May 1, 1994--December 31, 1995

Description: Study of early time events following the absorption of electromagnetic radiation in biological systems has potentially significant impact on several areas of importance. In this context, the studies being conducted under this program provided insight into the conformational changes as well as the reactions leading to a variety of transformations that culminate from hydrogen atom and proton transfer events. These studies enabled an investigation of molecular details of structure-function relatio… more
Date: August 1, 1997
Creator: Castleman, A. W., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A broad spectrum catalytic system for removal of toxic organics from water by deep oxidation. Annual progress report, September 15, 1996--September 14, 1997

Description: 'During the first year, the palladium-catalyzed deep oxidation of toxic organics by dioxygen in aqueous solution was examined in some detail. The research performed has established the viability of the catalytic system to effect the deep (and complete) oxidation of a very wide range of organic substrates under mild conditions. One significant observation was that chemical warfare agent models containing phosphorus-carbon and sulfur-carbon bonds could be eliminated by using this procedure.'
Date: September 1, 1997
Creator: Sen, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The free-radical and ion chemistry of silanes, germanes, phosphines, and related compounds. Final report, 1965--1994

Description: This report describes work performed on ionic and free radical reactions that occur in the photochemistry and radiation chemistry of silanes, germanes, stannanes, and phosphines. Dissociation energies and rate constants are discussed.
Date: December 1, 1995
Creator: Lampe, F. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Develop safe, low-cost method of manufacturing rechargeable, high conductivity lithium batteries. Final report

Description: The focus of much of this work is the rechargeable lithium battery, because of its high energy density, and the use of solid polymer electrolytes (SPE`s) for ease of fabrication and lightness of weight. The classical solid polymer electrolyte is based on the use of salts such as lithium triflate dissolved in poly(ethylene oxide) (PEO) or poly(propylene oxide). This specific polymer electrolyte has severe limitations. Poly(ethylene oxide) is a microcrystalline polymer at 25 C, and ion migration … more
Date: December 1, 1997
Creator: Allcock, H. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An investigation of the structure and phase relations of C-S-H gels. Final report, August 15, 1991--September 14, 1997

Description: Solid state NMR was used to obtain data on the atomic level structure of calcium silicate hydrate (C-S-H) that formed from a variety of starting materials under a variety of conditions. Because C-S-H is the major component of hydrated portland cement, a knowledge of its structure and of its structural evolution will ultimately allow users of cement containing materials such as mortars and concrete to more accurately predict the physical and mechanical behavior of these materials once they are p… more
Date: December 14, 1997
Creator: Grutzeck, M. W. & Benesi, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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