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Aluminum and Copper Chemical Vapor Deposition on Fluoropolymer Dielectrics and Subsequent Interfacial Interactions (open access)

Aluminum and Copper Chemical Vapor Deposition on Fluoropolymer Dielectrics and Subsequent Interfacial Interactions

This study is an investigation of the chemical vapor deposition (CVD) of aluminum and copper on fluoropolymer surfaces and the subsequent interfacial interactions.
Date: December 1997
Creator: Sutcliffe, Ronald David
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Supplemental Material: Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Alcohol Solvents Based on the Abraham Model (open access)

Supplemental Material: Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Alcohol Solvents Based on the Abraham Model

This document includes supplemental material to an article titled "Enthalpy of solvation correlations for gaseous solutes dissolved in alcohol solvents based on the Abraham model," published in QSAR & Combinatorial Science.
Date: December 7, 2007
Creator: Mintz, Christina; Ladlie, Tara; Burton, Katherine; Clark, Michael; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Object Type: Text
System: The UNT Digital Library
The Preparation, Properties, and Reactions of Silenes, Silenoids, and 2-Silanobornenes (open access)

The Preparation, Properties, and Reactions of Silenes, Silenoids, and 2-Silanobornenes

The reaction of chlorodimethylvinylsilane with tertbutyllithium was investigated in the presence of several conjugated dienes. In all cases except with 2,5-dimethylfuran, [2+4] cycloadducts of a silene intermediate are obtained in hydrocarbon solvents. The presence of THF in the reaction mixture suppresses the formation of cycloadducts in favor of 1,3-disilacyclobutanes. In the reaction of dimethylethoxyvinylsilane or dimethylmethoxyvinylsilane with tert-butyllithium the main product is the 1,1-dimethyl2-neopentyl-4-(dimethylalkoxysilyl)silacyclobutane. It is concluded that lithium chloride elimination to give silene intermediates occurs in hydrocarbon solvents. In the presence of strong Lewis bases or when the leaving group on silicon is an alkoxy group, the addition reaction giving a-lithiosilanes occurs and products arising from their coupling reactions are obtained.
Date: December 1981
Creator: Pierce, Richard A. (Richard Austin), 1918-2004
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Regulation of Lactobacillic Acid Formation in Lactobacillus Plantarum (open access)

Regulation of Lactobacillic Acid Formation in Lactobacillus Plantarum

Cyclopropanation of the unsaturated fatty acid moieties of membrane phospholipids is a commonly observed phenomenon in a number of bacterial systems. The cyclopropane fatty acids are usually synthesized during and after the transition from exponential growth to stationary phase, or under such environmental conditions as acidic culture pH, low oxygen tension or high salt concentrations. S-Adenosylmethionine, the ubiquitous methyl group donor, provides the methylene bridge carbon in the reaction catalyzed by cyclopropane fatty acid synthase. Also formed in the reaction is S-adenosylhomocysteine, a potent inhibitor of cyclopropane fatty acid synthase, which is degraded by S-adenosylhomocysteine nucleosidase. This work provides evidence for at least two modes of regulation of lactobacillic acid synthesis, the cyclopropane fatty acid formed from cis-vaccenic acid (cis-11,12-octadecenoic acid), in Lactobacillus piantarum.
Date: December 1980
Creator: Smith, Darwin Dennis
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells (open access)

Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells

This work presents the development of a new highly sensitive and selective chemical assay for poly(ADP-ribose) which is routinely useful for the determination of polymer levels in vivo. This method was used to carefully measure poly(ADP-ribose) levels in normal and in DNA-damaged cells. The results of these studies strongly suggest that synthesis of poly(ADP-ribose) is involved in some aspect of DNA repair. A review of the literature is presented in the introduction of this work. Poly(ADP-ribose) synthesis has been implicated in aspects of transcription, in DNA syn thesis, and in DNA repair largely based on evidence from in vitro studies. It is apparent that current methodology has not allowed the routine quantification of poly(ADP-ribose) in vivo, hence the lack of i^n vivo data concerning the function(s) of the polymer. The body of this work presents the development of two chemical methods for the quantification of poly(ADP-ribose) and the application of one of these methods to the measurement of polymer levels in normal and DNA-damaged cells. Preliminary studies are presented on the utilization of combined gas chromatography/mass spectroscopy for the selective quantification of nucleoside derivatives. A second method makes use of the unique chemistry of the polymer for quantification. The polymer …
Date: December 1980
Creator: Sims, James L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Purification of HMG-CoA Reductase and Regulation by Protein-Lipid Interactions (open access)

Purification of HMG-CoA Reductase and Regulation by Protein-Lipid Interactions

The enzyme 3-Hydroxy-3- Methylglutaryl Coenzyme A Reductase catalyzes the rate limiting step of hepatic cholesterol biosynthesis and is unique among the enzymes in the early part of the pathway in that it is membrane bound. This gives rise to potential regulation of the enzyme through interactions with the endoplasmic reticulum membrane. A purification procedure has been developed which consistently produces enzyme of high specific activity. In order to fully characterize the interactions between HMG-CoA reductase and the lipids in its immediate environment, HMG-CoA reductase was purified to homogeneity and shown to be a protein-lipid complex.
Date: December 1982
Creator: Brent, Lynn G. (Lynn Gran)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Supporting Material for: Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Water and in 1-Octanol Based on the Abraham Model (open access)

Supporting Material for: Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Water and in 1-Octanol Based on the Abraham Model

This document includes supporting material for an article titled, "Enthalpy of solvation correlations for gaseous solutes dissolved in water and in 1-octanol based on the Abraham model," published in the Journal of Chemical Information and Modeling.
Date: December 15, 2007
Creator: Mintz, Christina; Clark, Michael; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Object Type: Text
System: The UNT Digital Library
Carbon-Hydrogen Bond Activation, C-N Bond Coupling, and Cycloaddition Reactivity of a Three-Coordinate Nickel Complex Featuring a Terminal Imido Ligand (open access)

Carbon-Hydrogen Bond Activation, C-N Bond Coupling, and Cycloaddition Reactivity of a Three-Coordinate Nickel Complex Featuring a Terminal Imido Ligand

In this study, we describe reaction chemistry of the first nickel(II) complexes having a terminally bound imido ligand, (dtbpe)Ni=NR (R = 2,6-ⁱPr₂C₆H₃, 2,3,6-Me₃C₆H₂ (Mes), and Ad) with various small unsaturated molecules.
Date: December 1, 2014
Creator: Mindiola, Daniel J.; Waterman, Rory; Iluc, Vlad M.; Cundari, Thomas R., 1964- & Hillhouse, Gregory L.
Object Type: Article
System: The UNT Digital Library
[Review] Chemistry of Advanced Materials: An Overview (open access)

[Review] Chemistry of Advanced Materials: An Overview

This article reviews the book "Chemistry of Advanced Materials: An Overview," edited by Leonard V. Interrante and Mark J. Hampden-Smith.
Date: December 29, 1998
Creator: Cundari, Thomas R., 1964-
Object Type: Review
System: The UNT Digital Library
Variable Pathways for Oxygen Atom Insertion into Metal-Carbon Bonds: The Case of Cp*W(O)₂(CH₂SiMe₃) (open access)

Variable Pathways for Oxygen Atom Insertion into Metal-Carbon Bonds: The Case of Cp*W(O)₂(CH₂SiMe₃)

Article discussing variable pathways for oxygen atom insertion into metal-carbon bonds and the case of Cp*W(O)2(CH2SiMe3).
Date: December 24, 2012
Creator: Mei, Jiajun; Carsch, Kurtis M.; Freitag, Cody R.; Gunnoe, T. Brent & Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library
Carbon-Oxygen Bond Formation via Organometallic Baeyer-Villiger Transformations: A Computational Study on the Impact of Metal Identity (open access)

Carbon-Oxygen Bond Formation via Organometallic Baeyer-Villiger Transformations: A Computational Study on the Impact of Metal Identity

Article discussing a computational study on the impact of metal identity and carbon-oxygen bond formation via organometallic Baeyer-Villiger transformations.
Date: December 20, 2011
Creator: Figg, Travis M.; Webb, Joanna R.; Cundari, Thomas R., 1964- & Gunnoe, T. Brent
Object Type: Article
System: The UNT Digital Library
Studies of Low-Coordinate Iron Dinitrogen Complexes (open access)

Studies of Low-Coordinate Iron Dinitrogen Complexes

This article discusses low-coordinate iron dinitrogen complexes. Understanding the interaction of N₂ with iron is relevant to the iron catalyst used in the Haber process and to possible roles of the FeMoco active site of nitrogenase.
Date: December 31, 2005
Creator: Smith, Jeremy M.; Sadique, Azwana R.; Cundari, Thomas R., 1964-; Rodgers, Kenton R.; Lukat-Rodgers, Gudrun; Lachicotte, Rene J. et al.
Object Type: Article
System: The UNT Digital Library
Methane Activation by Group IVB Imido Complexes (open access)

Methane Activation by Group IVB Imido Complexes

Article discussing an ab initio study of methane activation by group IVB imido complexes.
Date: December 1992
Creator: Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library
A Two-Coordinate Nickel Imido Complex That Effects C-H Amination (open access)

A Two-Coordinate Nickel Imido Complex That Effects C-H Amination

This article discusses a two-coordinate nickel imido complex that effects C-H amination.
Date: December 22, 2010
Creator: Laskowski, Carl A.; Miller, Alexander J.M.; Hillhouse, Gregory L. & Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library
Comments Concerning "Fluorescent Probe Studies on the Microstructure of Polystyrene-Poly (vinylpyridine) Diblock Copolymer Film" (open access)

Comments Concerning "Fluorescent Probe Studies on the Microstructure of Polystyrene-Poly (vinylpyridine) Diblock Copolymer Film"

This article provides comments on "Fluorescent Probe Studies on the Microstructure of Polystyrene-Poly (vinylpyridine) Diblock Copolymer Film," published in 'Macromolecules,' 1992.
Date: December 1993
Creator: Acree, William E. (William Eugene); Tucker, Sheryl A. (Sheryl Ann) & Wilkins, Denise C.
Object Type: Article
System: The UNT Digital Library
Investigation of the mechanical properties of Ni-B/hBN composite coatings electrodeposited in presence of CTAB as the surfactant (open access)

Investigation of the mechanical properties of Ni-B/hBN composite coatings electrodeposited in presence of CTAB as the surfactant

Article investigating the effect of hexadecyltrimethylammonium bromide (CTAB) concentration on the galvanostatic electrodeposition of Ni-B matrix nano hexagonal boron nitride (hBN) reinforced composite coatings.
Date: December 6, 2019
Creator: Karahan, İsmail H. & Tozar, Ali
Object Type: Article
System: The UNT Digital Library
Prediction of drug solubility in ethanol-ethyl acetate mixtures at various temperatures using the Jouyban-Acree model (open access)

Prediction of drug solubility in ethanol-ethyl acetate mixtures at various temperatures using the Jouyban-Acree model

Article on the prediction of drug solubility in ethanol-ethyl acetate mixtures at various temperatures using the Jouyban-Acree model.
Date: December 26, 2007
Creator: Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Comment on "Measurement and correlation of the solubility of p-coumaric acid in nine pure and water + ethanol mixed solvents at temperatures from 293.15 to 333.15 K" (open access)

Comment on "Measurement and correlation of the solubility of p-coumaric acid in nine pure and water + ethanol mixed solvents at temperatures from 293.15 to 333.15 K"

This article provides comments on the article "Measurement and correlation of the solubility of p-coumaric acid in nine pure and water + ethanol mixed solvents at temperatures from 293.15 to 333.15 K" published in the Journal of Chemical and Engineering Data in 2016.
Date: December 7, 2016
Creator: Acree, William E. (William Eugene); Barrera, Maribel & Abraham, M. H. (Michael H.)
Object Type: Article
System: The UNT Digital Library
Computational studies of the potential energy surface for O(¹D) + H₂S: Characterization of pathways involving H₂SO, HOSH, and H₂OS (open access)

Computational studies of the potential energy surface for O(¹D) + H₂S: Characterization of pathways involving H₂SO, HOSH, and H₂OS

Article on computational studies of the potential energy surface for O(¹D) + H₂S and the characterization of pathways involving H₂SO, HOSH, and H₂OS.
Date: December 1, 1994
Creator: Goumri, Abdellatif; Rocha, John-David Ray; Laakso, Dianna; Smith, C. E. & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
A Computational Investigation of the Molecular Geometry and Rotational Barriers in Ethylmethyl Ether (open access)

A Computational Investigation of the Molecular Geometry and Rotational Barriers in Ethylmethyl Ether

Article on a computational investigation of the molecular geometry and rotational barriers in ethyl methyl ether.
Date: December 1, 1993
Creator: Stanton, C. L.; Marshall, Paul & Schwartz, Martin
Object Type: Article
System: The UNT Digital Library
Solubility of Lamotrigine, Diazepam, and Clonazepam in Ethanol + Water Mixtures at 298.15 K (open access)

Solubility of Lamotrigine, Diazepam, and Clonazepam in Ethanol + Water Mixtures at 298.15 K

Article on the solubility of lamotrigine, diazepam, and clonazepam in ethanol + water mixtures at 298.15 K.
Date: December 22, 2008
Creator: Shayanfar, Ali; Fakhree, Mohammad Amin Abolghassemi; Acree, William E. (William Eugene) & Jouyban, Abolghasem
Object Type: Article
System: The UNT Digital Library
Molecularly Imprinted Polymer Based Extended-Gate Field-Effect Transistor Chemosensors for Phenylalanine Enantioselective Sensing (open access)

Molecularly Imprinted Polymer Based Extended-Gate Field-Effect Transistor Chemosensors for Phenylalanine Enantioselective Sensing

This article discusses the design and synthesis of molecularly imprinted polymers, guided by DFT calculations.
Date: December 15, 2016
Creator: Iskierko, Z.; Checinska, A.; Sharma, Piyush S.; Golebiewska, K.; Noworyta, K.; Borowicz, Pawet et al.
Object Type: Article
System: The UNT Digital Library
Redox Activation of Alkene Ligands in Platinum Complexes with Non-innocent Ligands (open access)

Redox Activation of Alkene Ligands in Platinum Complexes with Non-innocent Ligands

Article discussing the redox activation of alkene ligands in platinum complexes with non-innocent ligands.
Date: December 19, 2009
Creator: Boyer, Julie L.; Cundari, Thomas R., 1964-; DeYonker, Nathan J.; Rauchfuss, Thomas B. & Wilson, Scott R.
Object Type: Article
System: The UNT Digital Library
Self-Reporting Molecularly Imprinted Polymer for Label-Free Selective Electrochemical Sensing of p-synephrine† (open access)

Self-Reporting Molecularly Imprinted Polymer for Label-Free Selective Electrochemical Sensing of p-synephrine†

This article is taken from the Proceedings of the 5th International Symposium on Sensor Science (I3S 2017). Molecularly imprinted polymers (MIPs) can be used in applications in selective chemosensing.
Date: December 4, 2017
Creator: Lach, Patrycja; Cieplak, Maciej; Sharma, Piyush S.; Sosnowska, Marta; D'Souza, Francis & Kutner, Wlodzimierz
Object Type: Article
System: The UNT Digital Library