Digital Commons Network^™

Preparation Of A Polymer Supported Cobalt (Ii) Schiff Base Catalyst, Susan L. Fuhrman

Retrospective Theses and Dissertations

Polystyrene bis(salicylaldehyde)-propylene-1,3-diiminato Cobalt (II) (salen) and Polystyrene bis(acetylacetone)-propylene-1,3-diiminato Cobalt (II) (BAE) were prepared stepwise from polystyrl chloride. The reaction series included substitution of the chloride with a malononitrile carbanion, reduction to a diamine, condensation to form a Schiff base, and complexation with Co(II) acetate to form the active polymeric material. Optimum conditions with regard to time, temperature, reaction ratios, and solvent were determined for each reaction. The ability of the polymer bound cobalt complex to oxidize 3-methyl indole was measure. The BAE catalyst yielded a large amount of the corresponding o-formylaminoacetophenone. However, the exact yield is not known because product …

Photon Counting System For The Determination Of Creatine Phosphokinase, Steven E. Dueball

Masters Theses

No abstract provided.

The Synthesis Of C₄ And C₅ 13c-Labeled Benzo[A]Pyrene, Benzo[A]Pyrene-4, 5-Oxide And Derivatives. Studies Of The Reactions Of Benzo[A]Pyrene-4, 5-Oxide Using 13cnmr, Mark David Hylarides

Chemistry and Chemical Biology ETDs

Benzo[a]pyrene (BAP), BAP-4,5-oxide, and other derivatives which are 13c-labeled in the 4-and 5-positions were synthesized. The synthetic scheme involves an initial reaction of the lithioenolate of ethyl acetate-1-13c or ethyl acetate-2-13c with l,2-dihydrochrysen4(3H)-one. Subsequent dehydration and dehydrogenation gave ethyl 4-chryseneacetate-1-C (or 2-C). Partial reduction to the aldehyde 13 13 followed by cyclization gave BAP-5-C (and 4-C). Toe synchesis of 13 BAP-4,5-oxide-4-13c (and 5-c) involved saponification of ethyl 4-chryseneacetate-1-13c (and 2-13c), an intermediate in the synthesis of BAP, followed by cyclization of the resultant acid to BAP-5-ol13 s-c (and 4-13c). The crude phenol was oxidized to the o-quinone. Further reduction of …

Raman Scattering Study Of Cs2 In Cci4, Scott Whittenburg

Chemistry Faculty Publications

No abstract provided.

Kinematics And Thermodynamics Of Nickel(Ii)-Glycine Complexes Using Carbon Magnetic Resonance, Donald Frederick Shepard

Chemistry and Chemical Biology ETDs

1-¹³C glycine was studied in nickel(II) solutions using carbon magnetic resonance (CMR). The carboxy bound nickel(II)-glycine complex and the kinetics of complexation between aquated nickel(II) ion and aquated glycine are described. It has been hypothesized that solutions containing no complexation higher than the chelated mono nickel(II)-glycine complex contain five magnetically different glycine species. The effects of these five magnetically different glycine species on the CMR spectra of the nickel(II)-glycine solutions are discussed. The lifetime of the carboxy bound complex is 7.87 x 10^-4 sec at 272 K with an activation energy of 9.74 kcal/mole, an activation enthalpy …

Nonenzymatically Glucosylated Albumin: In Vitro Preparation And Isolation From Normal Human Serum, James F. Day, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Incubation of human serum with D-[6-3H]glucose resulted in the gradual accumulation of radioactivity in acid-precipitable material. Upon chromatography on Sephadex G-200, radioactivity was found associated with each of the major molecular weight classes of serum protein. Purified human serum albumin was also glucosylated in vitro upon exposure to D-[6-3H]glucose in phosphate-buffered saline. The glucosylated and unmodified albumins were separated by ion exchange chromatography. The physiological significance of these observations in vitro was confirmed by the isolation and quantitation of glucosylated albumin from normal human serum. Glucosylated albumin represents approximately 6 to 15% of total serum albumin in normal adults. The …

Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy

Publications (WR)

The enclosed reports were compiled for the Colorado River Water Quality Office based on salinity data for Lake Mead and Lake Powell. According to the regional director of the office, the reports are not considered "polished" documents for public distribution. However, he considers them to be "interesting, rough appraisals of general trends that may be very important In our understanding the hydro-salinity system in the Colorado River."

Depolarized Rayleigh Scattering Study Of Pyridine In Cyclohexane, Scott Whittenburg

Chemistry Faculty Publications

No abstract provided.

Synthesis Of Benzo[A]Pyrene And Derivatives: Labelling Of Positions 1, 2, 3, 11 And 12, Richard S. Bodine

Chemistry and Chemical Biology ETDs

The ketone, 3, 4-dihydrobenz[a]anthracen-1(2H)-one (1), was prepared in three steps from anthracene. Condensation of the lithioenolate of ethyl acetate with the ketone(1) in tetrahydrofuran at -78°C afforded ethyl (1-hydroxy-1, 2, 3, 4-tetrahydrobenz[a]anthracen-1-yl)acetate (2). Dehydration and dehydrogenation over palladium/charcoal provided ethyl (benz[a]anthracen-1-yl)acetate (3). Reduction of the ester (3) with diisobutylaluminum hydride in toluene at -75°C gave benz[a]anthracen-1-ylacetaldehyde (4) which was cyclized with methanesulfonic acid to benzo[a]pyrene (5). Saponification of the ester (3) gave benz[a]anthracen-1-ylacetic acid (6) which was cyclized with methanesulfonic acid to benzo[a]pyren-11-o1 (7). Oxidation of the phenol (7) with Fremy's salt afforded the quinone, 11, 12-dihydrobenzo[a]pyrene-11, 12-dione (8). Reduction …

A Survey Of Ligand Effects Upon The Reaction Entropies Of Some Transition Metal Redox Couples, Edmund L. Yee, Robert J. Cave, Kendall L. Guyer, Paul D. Tyma, Michael J. Weaver

All HMC Faculty Publications and Research

The reaction entropies ∆S°_rc of a number of transition metal redox couples of the form M(III)/(II) in aqueous solution have been determined using nonisothermal electrochemical cells in order to explore the effect of varying the ligand structure upon the nature of the ion-solvent interactions. Examinations of six aquo couples of the form M(OH_2)_n&3+/2+ with varying metal M yielded ∆S°_rc values in the range 36-49 eu. In order to scrutinize the effect of replacing aquo with ammine and simple anionic ligands, Ru(III)/(II) couples were employed since the relative substituion inertness of both oxidation states allowed ∆S …

Determination Of Surface Thickness Assuming A Linear-Density Profile, Jerry Goodisman

Chemistry - All Scholarship

Assuming a one-parameter model for the two-particle distribution function of a surface, one can choose a value of the "width parameter" to yield a correct surface tension. In order to then identify the width of the surface layer with the value of the width parameter, as is often done, one can check the validity of the model by verifying that other properties (e.g., surface energy) are correctly calculated, or, as proposed herein, by demonstrating that different formulas for the surface tension give identical results. A new formula is derived, and the relation between the different formulas discussed. Calculations are performed …

Stripping Platinum Metals From Catalytic Converter Units By Use Of Promoted Gas Phase Chlorine Attack, James Harold Finckbone

Retrospective Theses and Dissertations

A gas-phase system to oxidize and remove the platinum and palladium from automotive catalytic converter units was studied. The effects of varying reaction temperature, time and reactant gas concentration upon yields were monitored using a colorimetric procedure based on the regent p-nitroso-N, N-dimethyl amiline. Chlorine plus carbon monoxide at 700°-900°C. displayed the most promise for commercial application.

Nucleation Experiments With Monodisperse Nacl Aerosols., Darryl J. Alofs, M. B. Trueblood, D. R. White, V. L. Behr

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Nucleation Experiments with Monodisperse NaCl Aerosols Showed Good Agreement with the Kohler Theory Relating the Critical Super-Saturation S//c to the Dry Size. Aerosols Produced by Condensing NaCl Showed the Same S//c as Those Produced by Evaporating Aqueous NaCl Solution Droplets. This Indicates that If There is an Energy Barrier in Going from a Dry NaCl Particle to a Solution Droplet, This Energy Barrier is Small. the Fact that the Evaporation Aerosol Particles Are Cubical Crystals and the Condensation Aerosols Are Amorphous Spheres is Shown to Make No Difference in the Nucleation Threshold. the Investigation Also Gives Insights into the Performance …

Separation Of 1,3-Pentadiene With Molecular Sieves, Steven R. Schwinn

Retrospective Theses and Dissertations

The feasibility of separating piperylene (1,3-pentadiene) from a mixture of five-carbon olefins and diolefins with Linde 5A Molecular Sieves was investigated. Olefins and especially diolefins are very reactive and tend to polymerize on the highly polar adsorptive surface thereby clogging the pores of themolecular sieve. It is believed that the acid sites within the zeolite cages catalyze this polymerization reaction and that poisoning of these sites by adsorption of a nitrogenous base (ethylenediamine, dimethylamine or ammonia) or hydrogen sulfide inhibits the formation of polymers. Two criteria were used in the evaluation of the polymerization inhibitors tested. First, a series of …

Plasma Polymerization Of Tetrafluoroethylene. I. Inductive Radio Frequency Discharge, H. Yasuda, N. Morosoff, E. S. Brandt, C. N. Reilley

Chemistry Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene in an inductively coupled radio frequency glow discharge, using a flow system, was studied. A simple long tube reactor, with the coupling coil placed at the middle of the tube and gas entrance and exit at the respective ends, was used. Deposition rates and the chemical nature of the polymer (as revealed by ESCA spectra and surface energy studies) are obtained as a function of location in the reactor tube with respect to the coupling coil and of applied energy per unit mass of tetrafluoroethylene (W/FM). It was found that a fluorine poor polymer, containing …

Fate Of Some Common Radionuclides Found In Dardanelle Lake, David M. Chittenden Ii

Journal of the Arkansas Academy of Science

Four factors influence the concentrations of radionuclides in Dardanelle Lake water: injections due to fallout and discharge from Nuclear I coupled with losses due to decay, to dilution and to sedimentation. It is possible to estimate the first three factors and to measure monthly changes in the concentrations of Sr-89, Ce-141, Cs-137, Co-38, Ce-144, and Sr-90 - Y-90 during periods when the concentrations of these nuclides are abnormally high (after large releases or the Chinese weapons tests) or abnormally low (during reactor refueling).

Pulling The Wool Off, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The Department of Agriculture has begun a three year project to study the potential for "chemical shearing" or, more correctly, biological defleecing.

The Systhesis And Photolysis Of 1-Phenylcyclohexaneacetic Acid Azide, Jack P. Mourad

Dissertations and Theses

The aim of this research project was to study the possible synthesis of the morphine analog 3-oxo-5-phenylmorphan via the photochemical cyclization of the acyl azide of 1-phenylcyclohexaneacetic acid.

A Polarographic Study Of Fe(Ii) And Fe(Iii) Complexes With Catechol, Wen-Tang Shen

Dissertations and Theses

A study of the anodic polarography of catechol in 0.100 F sodium perchlorate is presented. A new wave is observed in alkaline solutions which is different from the simple oxidation wave of catechol to ortho-quinone observed by previous workers. The importance of buffer materials is discussed and a possible explanation of the new wave is suggested.

A study of the polarography behavior of Fe(II) and Fe(III) in the presence of catechol is reported. In the case of reduction of Fe(III) in the presence of catechol, two steps occur at about -1.5 and -1.8 volts (vs. SCE) at pH higher than …

Metal Cluster Chemistry: Structure And Stereochemistry In The Polynuclear Rhodium Hydrides HNRhN[P(Or)3]2n, R. K. Brown, J. M. Williams, M. F. Fredrich, V. W. Day, A. J. Sivak, E. L. Muetterties

Department of Chemistry: Faculty Publications

Crystallographic analyses of x-ray and neutron diffraction data have provided a definitive structural representation of {HRh[P(O-i-C₃H₇)₃]₂}₂ and [HRh[P(OCH₃)₃]₂}₃. These polynuclear hydrides are generated from square planar H2Rh[P(OR)₃]₂ units by edge (hydrogen atom) sharing and by vertex (hydrogen atom) sharing to form the dimeric and trimeric structures, respectively. The square-planar units are held together through four-center and three-center two-electron Rh-H-Rh bonds in the dimer and trimer, respectively. The dimer and trimer molecules each add one molecule of hydrogen to …

Protein Synthesis In Rabbit Reticulocytes: Mechanism Of Protein Synthesis Inhibition By Heme-Regulated Inhibitor, A. Das, O. Ralston, M. Grace, R. Roy, P. Ghosh-Dastidar, H. K. Das, B. Yaghmai, S. Palmieri, N. K. Gupta

Department of Chemistry: Faculty Publications

Partially purified Met-tRNA_f binding factor, eIF-2, was phosphorylated by using heme-regulated inhibitor (HRI). Phosphorylated eIF-2 was freed from HRI by phosphocellulose column chromatography. Analysis by isoelectric focusing showed 100% phosphorylation of the 38,000-dalton subunit of eIF-2. Both eIF-2 and eIF-2(P) formed ternary complexes with Met-tRNA_f and GTP with almost the same efficiency, and in both cases the ternary complex formation was drastically inhibited by prior addition of Mg²⁺. However, whereas the ternary complexes formed with eIF-2 could be stimulated by Co-eIF-2C at 1 mM Mg²⁺ and dissociated by Co-eIF-2B at 5 mM Mg²⁺, …

Protein Synthesis In Rabbit Reticulocytes: Characteristics Of A Postribosomal Supernatant Factor That Reverses Inhibition Of Protein Synthesis In Heme-Deficient Lysates And Inhibition Of Ternary Complex (Met-TrnaFMet•Eif-2•Gtp) Formation By Heme-Regulated Inhibitor, R. O. Ralston, A. Das, M. Grace, H. Das, N. K. Gupta

Department of Chemistry: Faculty Publications

During heme deficiency in reticulocyte lysates, a translational inhibitor (heme-regulated inhibitor, HRI) that blocks polypeptide chain initiation is activated. HRI is a protein kinase that specifically phosphorylates the 38,000-dalton subunit of the Met-tRNA_f^Met binding factor, eIF-2. Phosphorylation of eIF-2 by HRI prevents its interaction with at least two additional factors, resulting in a net reduction in formation of ternary complex (Met-tRNA_f^Met eIF-2•GTP) and AUG-dependent transfer of Met-tRNA_f^Met to 40S ribosomal subunits. A factor (sRF) that reverses protein synthesis inhibition in heme-deficient Iysates has been purified from reticulocyte postribosomal supernatant. sRF also reverses the inhibition …

Preparation Of N,N-Dimethylhydrazones And 1,1-Dimethylpyrazolium-5-Oxides, Tso-Ping Li

Masters Theses

The purpose of this study was to prepare the 1,1-dimethylpyrazolium-5-oxides from a variety of N,N-dimethylhydrazones which can be prepared from the corresponding β-ketoesters.

Substitution of a methyl group at α-position of β-ketoesters makes the formation of N,N-dimethylhydrazones more difficult. The electron-withdrawing group (-NO₂) and the electron-releasing group (-OCH₃) as a parasubstituent of the benzene ring have the electrostatic effect to the nucleophilic attack of dimethylhydrazine to form the N,N-dimethylhydrazones.

It was found that N,N-dimethylhydrazones exist as a mixture of keto and enol tautomers based on the ir and nmr spectra. A semiquantitative analysis of the tautomerism …

Plasma Polymerization Of Tetrafluoroethylene. Ii. Capacitive Radio Frequency Discharge, N. (Nicholas) C. Morosoff, H. Yasuda, E. S. Brandt, C. N. Reilley

Chemical and Biochemical Engineering Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene (TFE) is studied in a capacitively coupled system with internal electrodes using radio frequency (13.56 MHz) power. The emphasis is on identifying conditions that are compatible with continuous coating of plasma polymer on a substrate moving through the center of the interelectrode gap. At high pressure (500 mTorr), deposition of plasma polymer is primarily on the electrodes rather than on a substrate placed midway between electrodes. Glow is observed in only part of the interelectrode gap at low powers and fills the gap only at high power levels. The use of a magnetic field effects …

Plasma Polymerization Of Tetrafluoroethylene. Iii. Capacitive Audio Frequency (10 Khz) And Ac Discharge, N. (Nicholas) C. Morosoff, H. Yasuda, E. S. Brandt, C. N. Reilley

Chemical and Biochemical Engineering Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene (TFE) is studied in a capacitively coupled system with internal electrodes using a 10 kHz (af) and a 60 Hz (ac) source. The emphasis is on identifying conditions that are compatible with continuous coating of plasma polymer on a substrate moving through the center of the interelectrode gap. Operation at a pressure below 100 mTorr is most favorable for deposition of a substantial portion of the plasma polymer on this substrate. Plasma polymer deposited in this way is characterized by ESCA and by deposition rate data and compared to that deposited using rf power in …

I. Extracellular Metabolites From Coprinus Macrorhizus Microsporus. Isolation And Characterization Of Hydroxylagopodin B. Ii. The Cell Wall Composition And Structure Of Coprinus Macrorhizus Microsporus, Carey Bernard Bottom

Doctoral Dissertations

“A purple pigment excreted into the culture medium of a mutant strain of the basidiomycete, Coprinus macrorhizus var. microsporus (ATCC 34960) has been isolated and characterized as hydroxylagopodin B based on ultraviolet, infrared, and mass spectral data. A wild-type strain of C. macrorhizus microsporus does not produce the purple pigment, however it does produce lagopodin B which is yellow in solution. Identification of lagopodin B was based on its melting point, the purple color of its alkaline solution, the mass spectrum, and mobility equivalence with a standard by thin-layer chromatography. The production of hydroxylagopodin B in the mutant strain is …

Preservice Teachers’ Beliefs About Teaching And Learninga Study Of The Products Of Aquation Of Trans-Bromobis (Ethylenediamine) Nitritochromium (Iii) Cation, Jamie E. Guerrero S.

Dissertations and Theses @ UNI

The products of the aquation of trans-bromobis- + (ethylenediamine)nitritochromium(III), trans-[CrBr(ONO)(en) 2 ] , cation in 0.001 F HC1O4 were separated by cation-exchange chromatography on Dowex AGS0W-X8 and Sephadex SP-C-25-120 columns. Visible absorption spectra and analyses of nitrite to chromium and bromide to chromium molar ratios were used to identify the products. It was found that trans-bromobis- (ethylenediamine)nitritochromium(III) cation reacted rapidly in 0.001 F HC1O4 at room temperature, releasing both nitrite and bromide ions. The primary aquation product was found to be a mixture, probably containing both cis- and transisomers of aquabromobis(ethylenediamine)chromium(III), [CrBr(H2 O)(en) 2] 2+, and aquabis(ethylenediamine)nitritochromium(III), [Cr(ONO) (H 2 …

Cndo Calculations On The Structure Of A Liquid Sodium Carboxylate-Carboxylic Acid Compound, Beverly Bendiksen, Stig Friberg, Patricia L.M. Plummer

Chemistry Faculty Research & Creative Works

The molecular interactions in a carboxylic acid/sodium carboxylate compound which is a liquid at room temperature were calculated using a CNDO/2 approach. The calculations gave results distinguishing the energy for different conformations in the molecular compound. The maximum binding energy was found for a structure in which the four acids were bridging with a hydrogen bond from the acid OH group to the carboxylate group and the acid carbonyl groups forming a ligand bond to the carboxylate sodium ion. © 1979 Academic Press, Inc.

A Simple Experiment Illustrating The Structure Of Association Colloids, Stig Friberg, Beverly Bendiksen

Chemistry Faculty Research & Creative Works

No abstract provided.

Esculin Hydrolysis In The Enterobacteriaceae, Jane Shigeko Okada

University of the Pacific Theses and Dissertations

Esculin hydrolysis, as mentioned earlier, is now a recognized test in the identification of Group P enterococci. However, its use as a taxonomic tool in differentiating the genera and species of Enterobacteriaceae has not been widely accepted, partly because of the conflicting reports in the literature and partly because of the availability of more reliable tests. Some commercial kits (MS-2, Abbott Laboratories, Dallas, Texas; Micro-Id General Diagnostics, Morris Plains, New Jersey), however, have incorporated it among their battery of biochemical tests.

The nature of the enzyme has not studied for bacteria other than the KES group and E.coli.

Because of …