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Mechanistic studies of carbon monoxide reduction

Description: The progress made during the current grant period (1 January 1988--1 April 1990) in three different areas of research is summarized. The research areas are: (1) oxidatively-induced double carbonylation reactions to form {alpha}-ketoacyl complexes and studies of the reactivity of the resulting compounds, (2) mechanistic studies of the carbonylation of nitroaromatics to form isocyanates, carbamates, and ureas, and (3) studies of the formation and reactivity of unusual metallacycles and alkylidene… more
Date: June 12, 1990
Creator: Geoffroy, G.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies Relevant to the Catalytic Activation of Carbon Monoxide

Description: Research activity during the 1991--1992 funding period has been concerned with the following topics relevant to carbon monoxide activation. (1) Exploratory studies of water gas shift catalysts heterogenized on polystyrene based polymers. (2) Mechanistic investigation of the nucleophilic activation of CO in metal carbonyl clusters. (3) Application of fast reaction techniques to prepare and to investigate reactive organometallic intermediates relevant to the activation of hydrocarbons toward carb… more
Date: June 4, 1992
Creator: Ford, P. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pulsed laser kinetic studies of liquids under high pressure

Description: Experiments have been developed for measuring the rates of chemical reactions liquids and in supercritical Co[sub 2]. A pulsed (Q-switch) Nd:YAG laser at 355 nm was the pump beam for laser flash photolysis studies of molybdenum and tungsten hexacarbonyls undergoing ligand displacement reactions by bidentate chelating agents such as 2,2[prime]-bipyridine in toluene. Experiments were carried out at 0.1 to 150 MPa. In the case of molybdenum complexes, the reaction mechanism for thermal ring closur… more
Date: June 21, 1993
Creator: Eyring, E. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pulsed laser kinetic studies of liquids under high pressure. Final technical report, April 1, 1990--March 31, 1993

Description: Experiments have been developed for measuring the rates of chemical reactions liquids and in supercritical Co{sub 2}. A pulsed (Q-switch) Nd:YAG laser at 355 nm was the pump beam for laser flash photolysis studies of molybdenum and tungsten hexacarbonyls undergoing ligand displacement reactions by bidentate chelating agents such as 2,2{prime}-bipyridine in toluene. Experiments were carried out at 0.1 to 150 MPa. In the case of molybdenum complexes, the reaction mechanism for thermal ring closur… more
Date: June 21, 1993
Creator: Eyring, E. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Organic carbonyl compounds in Albuquerque, New Mexico, air: A preliminary study of the effects of oxygenated fuel use

Description: A suite of inorganic and organic species were analyzed for four 2--4 day time periods over a year in Albuquerque, New Mexico to determine baseline conditions for organic pollutants under the current air pollution control parameters. Concentrations of low molecular weight carbonyl compounds were relatively high compared with areas such as Los Angeles. Formio acid concentrations in air samples were significant even in winter. In addition, ratios of peroxypropionyl nitrate to peroxyacyetyl nitrate… more
Date: June 1, 1993
Creator: Popp, C. J.; Zhang, Lin & Gaffney, J. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Small-Chamber Measurements of Chemical-Specific Emission Factors for Drywall

Description: Imported drywall installed in U.S. homes is suspected of being a source of odorous and potentially corrosive indoor pollutants. To support an investigation of those building materials by the Consumer Products Safety Commission (CPSC), Lawrence Berkeley National Laboratory (LBNL) measured chemical-specific emission factors for 30 samples of drywall materials. Emission factors are reported for 75 chemicals and 30 different drywall samples encompassing both domestic and imported stock and incorpor… more
Date: June 1, 2010
Creator: Maddalena, Randy; Russell, Marion & Apte, Michael G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis of hcp-Co Nanodisks

Description: hcp Co disk-shaped nanocrystals were obtained by rapid decomposition of cobalt carbonyl in presence of linear amines. Other surfactants, in addition to the amines, like phosphine oxides and oleic acid were used to improve size dispersion, shape control and nanocrystal stability. Co disks are ferromagnetic in character and they spontaneously self-assemble into long ribbons. X-ray and electron diffraction, electron microscopy and SQUID magnetometry have been employed to characterize this material. more
Date: June 11, 2002
Creator: Puntes, Victor F.; Zanchet, Daniela; Erdonmez, Can K. & Alivisatos, A. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Highly nucleophilic acetylide, vinyl, and vinylidene complexes

Description: The research was divided into the following: studies of nucleophilic and chiral acetylide complex [Cp(CO)(PPh[sub 3])Mn-C[triple bond]CR][sup [minus]]; nucleophilic addition of carbene anions to organic ligands on electrophilic complexes; halide-promoted carbonylation of imido ligands; binuclear Fe[sub 2] complexes with bridging organonitrogen ligands; addition and cycloaddition reactions of carbyne complex [Cp(CO)[sub 2]Re[triple bond]CTol][sup +]; addition and cycloaddition reactions of methy… more
Date: June 15, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Highly nucleophilic acetylide, vinyl, and vinylidene complexes. Progress report

Description: The research was divided into the following: studies of nucleophilic and chiral acetylide complex [Cp(CO)(PPh{sub 3})Mn-C{triple_bond}CR]{sup {minus}}; nucleophilic addition of carbene anions to organic ligands on electrophilic complexes; halide-promoted carbonylation of imido ligands; binuclear Fe{sub 2} complexes with bridging organonitrogen ligands; addition and cycloaddition reactions of carbyne complex [Cp(CO){sub 2}Re{triple_bond}CTol]{sup +}; addition and cycloaddition reactions of methy… more
Date: June 15, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies relevant to the catalytic activation of carbon monoxide. Technical progress report, September 1991

Description: Research activity during the 1991--1992 funding period has been concerned with the following topics relevant to carbon monoxide activation. (1) Exploratory studies of water gas shift catalysts heterogenized on polystyrene based polymers. (2) Mechanistic investigation of the nucleophilic activation of CO in metal carbonyl clusters. (3) Application of fast reaction techniques to prepare and to investigate reactive organometallic intermediates relevant to the activation of hydrocarbons toward carb… more
Date: June 4, 1992
Creator: Ford, P. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE VAPOR PRESSURES OF 30 INORGANIC LIQUIDS BETWEEN ONE ATMOSPHERE AND THE CRITICAL POINT

Description: Literature values of the vapor pressures of H/sub 2/, HD, D/sub 2/, N/ sub 2/, O/sub 2/, Ne, Ar, Kr, Xe, CO, NO, CH/sub 4/, N/sub 2/O, CO/sub 2/, HCl HBr, HI, SF/sub 6/, H/sub 2/S, Cl/sub 2/, Br/sub 2/, NH/sub 3/, C/sub 2/H/sub 2/ , SO/sub 2/, SO/sub 3/, COCl/sub 2/, HF, HCN, N/sub 2/O/sub 4/, CCl/sub 4/, and SnCl/sub 4/ were compared with the Kirchhoff formula log PK = --A/T + B between the normal boiling point and the critical point, where A and B are determined for each liquid. Plots are pre… more
Date: June 13, 1963
Creator: Edwards, D.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Time resolved infrared studies of C-H bond activation by organometallics

Description: This work describes how step-scan Fourier Transform Infrared spectroscopy and visible and near infrared ultrafast lasers have been applied to the study of the photochemical activation of C-H bonds in organometallic systems, which allow for the selective breaking of C-H bonds in alkanes. The author has established the photochemical mechanism of C-H activation by Tp{sup *}Rh(CO){sub 2}(Tp{sup *} = HB-Pz{sup *}{sub 3}, Pz = 3,5-dimethylpyrazolyl) in alkane solution. The initially formed monocarbon… more
Date: June 1, 1998
Creator: Asplund, Matthew Charles
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Novel Bimettallic Dispersed Catalysts for Temperature-Programmed Coal Liquefaction: Technical progress report January--March 1996

Description: Coal liquefaction may involve cleavage of methylene, dimethylene and ether bridges connecting polycyclic aromatic units and the reactions of various oxygen functional groups. Here in this quarterly, we report on the effects of dispersed Mo catalysts and H{sub 2}O addition on hydrogenation and C-C bond hydrocracking of 4-(1- naphthylmethyl)bibenzyl, abbreviated as NMBB. Recent research in this laboratory has demonstrated a strong synergistic effect between a dispersed Mo sulfide catalyst and wat… more
Date: June 1, 1996
Creator: Song, C.; Schmidt, E. & Schobert, H.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Support services for ceramic fiber-ceramic matrix composites. Annual technical progress report

Description: The University of North Dakota Energy and Environmental Research Center (EERC) is providing technical assistance and test materials to the US Department of Energy (DOE) Advanced Research and Technology Development (AR and TD) Materials Program investigating ceramic and advanced alloy corrosion in fossil energy systems. The main activity, which is reported here, is to perform thermochemical equilibrium calculations to develop recommendations for test conditions under which to perform corrosion m… more
Date: June 22, 1998
Creator: Hurley, John P. & Kuehnel, Vit
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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