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Improving Reliability and Failure Prevention in Automobile Microelectronics
Video from the Fall 2018 3 Minute Thesis (3MT®) Final Competition. In this video, Muthappan Asokan presents his research methods, findings, and its significance in non-technical language.
Date:
November 17, 2018
Creator:
Asokan, Muthappan
Object Type:
Video
System:
The UNT Digital Library
Oxidation of Reduced Sulfur Species: Carbonyl Sulfide
Article on the oxidation of reduced sulfur species and carbonyl sulfide.
Date:
April 25, 2013
Creator:
Glarborg, Peter & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Reversible Beta-Hydrogen Elimination of Three-Coordinate Iron(II) Alkyl Complexes: Mechanistic and Thermodynamic Studies
Article discussing mechanistic and thermodynamic studies and reversible beta-hydrogen elimination of three-coordinate iron(II) alkyl complexes.
Date:
October 1, 2004
Creator:
Vela, Javier; Vaddadi, Sridhar; Cundari, Thomas R., 1964-; Smith, Jeremy M.; Gregory, Elizabeth A.; Lachicotte, Rene J. et al.
Object Type:
Article
System:
The UNT Digital Library
C-H Functionalization Reactivity of a Nickel-Imide
This article discusses C-H functionalization reactivity of a Nickel-Imide.
Date:
May 22, 2012
Creator:
Wiese, Stefan; McAfee, Jason L.; Pahls, Dale R.; McMullin, Claire L.; Cundari, Thomas R., 1964- & Warren, Timothy H.
Object Type:
Article
System:
The UNT Digital Library
Acetaldehyde oxidation at elevated pressure
A detailed chemical kinetic model for oxidation of CH3CHO at intermediate to high temperature and elevated pressure has been developed and evaluated by comparing predictions to novel high-pressure flow reactor experiments as well as shock tube ignition delay measurements and jet-stirred reactor data from literature. The flow reactor experiments were conducted with a slightly lean CH3CHO/O2 mixture highly diluted in N2 at 600–900 K and pressures of 25 and 100 bar. This is the accepted manuscript version of the published article.
Date:
April 10, 2021
Creator:
Hashemi, Hamid; Christensen, Jakob M.; Marshall, Paul & Glarborg, Peter
Object Type:
Article
System:
The UNT Digital Library
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
Importance of the Hydrogen Isocyanide Isomer in Modeling Hydrogen Cyanide Oxidation in Combustion
This article re-examines the chemistry of hydrogen isocyanide (HNC) and its role in combustion nitrogen chemistry.
Date:
October 5, 2016
Creator:
Glarborg, Peter & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Oxidation of Reduced Sulfur Species: Carbon Disulfide
Article on the oxidation of reduced sulfur species and carbon disulfide.
Date:
August 4, 2014
Creator:
Glarborg, Peter; Halaburt, Birgitte; Marshall, Paul; Guillory, Adrian; Troe, Jürgen; Thellefsen, Morten et al.
Object Type:
Article
System:
The UNT Digital Library
Foucault's Pendulum
Front cover of the Summer 2010 issue of The Hexagon featuring Foucault's pendulum in the Panthéon of Paris, France. A large weight hangs from the ceiling over a circular table with degrees written onto its surface. A round fence with hash marks and numbers surrounds the display. Columns and a raised statue of men are visible in the background. The inside cover features a table of contents, staff list, an editorial, and a description of the front cover.
Date:
Summer 2010
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Rediscovery of the Elements: Strontium
Article describing the history of the element strontium from its discovery in Strontian, Scotland, to its early uses in English medicine. Maps with directions and photographs of pertinent locations are included.
Date:
Autumn 2002
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Rediscovery of the Elements: Althofen, Austria and Auer von Welsbach
Article recounting a visit to sites related to Baron Carl Auer von Welsbach, discoverer of lutetium and ytterbium and inventor of the incandescent "Welsbach mantle." Maps and tourist information are provided regarding the Welsbach Museum in Treibach, Austria.
Date:
Spring 2002
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
An Experimental and Theoretical Study of the Reaction Between NH(X3Σ-) + SO(X3Σ-)
Article on an experimental and theoretical study of the reaction between NH(X3Σ–) + SO(X3Σ–).
Date:
August 3, 2010
Creator:
Blitz, Mark A.; Shannon, Robin J.; Marshall, Paul & Pilling, Michael J.
Object Type:
Article
System:
The UNT Digital Library
Electrochemically synthesized polymers in molecular imprinting for chemical sensing
This critical review describes a class of polymers prepared by electrochemical polymerization that employs the concept of molecular imprinting for chemical sensing.
Date:
February 3, 2012
Creator:
Sharma, Piyush S.; Pietrzyk-Le, Agnieszka; D'Souza, Francis & Kutner, Wlodzimierz
Object Type:
Review
System:
The UNT Digital Library
Molecular Dynamics and Interactions in Liquids
Various modern spectroscopies have been utilized with considerable success in recent years to probe the dynamics of vibrational and reorientational relaxation of molecules in condensed phases. We have studied the temperature dependence of the polarized and depolarized Raman spectra of various modes in the following dihalomethanes: dibromomethane, dichloromethane, dichloromethane-d2, and bromochloromethane. Among other observed trends, we have found the following: Vibrational dephasing times calculated from the bend) and (C-Br stretch) lineshapes are of the same magnitude in CI^B^. The vibrational dephasing time of [C-D(H) stretch] is twice as long in CD2Cl2 as in CH-^C^, and the relaxation time of (C-Cl stretch) is greater in CI^C^ than in CD2CI2. Isotropic relaxation times for all three stretching vibrations are significantly shorter in C^BrCl than in CI^C^ or CI^B^. Application of the Kubo model revealed that derived modulation times are close to equal for equivalent vibrations in the various dihalomethanes. Thus, the more efficient relaxation of the A^ modes in CE^BrCl can be attributed almost entirely to the broader mean squared frequency perturbation of the vibrations in this molecule.
Date:
May 1985
Creator:
Chen, Jen Hui
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Rediscovery of the Elements: Courtois and Iodine
Article describing the history of iodine, including its discovery by Bernard Courtois while during the production of saltpeter. Tourist information regarding pertinent locations is included.
Date:
Winter 2009
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
The rate constant for the CO + H2O2 reaction
Article on the rate constant for the CO + H2O2 reaction.
Date:
June 16, 2009
Creator:
Glarborg, Peter & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Stability Studies of Transition-Metal Linkage Isomers Using Quantum Mechanical Methods, Groups 11 and 12 Transition Metals
Article discussing the stability studies of transition-metal linkage isomers using quantum mechanical methods and groups 11 and 12 transition metals.
Date:
April 29, 2005
Creator:
Buda, Corneliu; Kazi, Abul B.; Dinescu, Adriana & Cundari, Thomas R., 1964-
Object Type:
Article
System:
The UNT Digital Library
Evidence for the Net Addition of Arene C-H Bonds across a Ru(II)-Hydroxide Bond
Article discussing evidence for the net addition of Arene C-H bonds across a Ru(II)-Hydroxide bond.
Date:
September 27, 2005
Creator:
Feng, Yuee; Lail, Marty; Barakat, Khaldoon A.; Cundari, Thomas R., 1964-; Gunnoe, T. Brent & Petersen, Jeffrey L.
Object Type:
Article
System:
The UNT Digital Library
Conversions of Ruthenium (III) Alkyl Complexes to Ruthenium (II) through Ru-Calkyl Bond Homolysis
This article discusses conversions of Ruthenium(III) alkyl complexes.
Date:
February 12, 2005
Creator:
Lail, Marty; Gunnoe, T. Brent; Barakat, Khaldoon A. & Cundari, Thomas R., 1964-
Object Type:
Article
System:
The UNT Digital Library
With a Little Help from My Friends: Forty Years of Fruitful Chemical Collaborations
Article discussing forty years of fruitful chemical collaborations and the author's perspective on collaborative research in eight different areas of organic and theoretical chemistry.
Date:
March 31, 2011
Creator:
Borden, Weston T.
Object Type:
Article
System:
The UNT Digital Library
Computational studies of the isomers of ClIO and ClIO₂ implications for the stratospheric chemistry of iodine
Article on computational studies of the isomers of ClIO and ClIO₂ and implications for the stratospheric chemistry of iodine.
Date:
1997
Creator:
Misra, Ashutosh & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Polycyclic Aromatic Nitrogen Heterocycles. Part V: Fluorescence Emission Behavior of Select Tetraaza- and Diazaarenes in Nonelectrolyte Solvents
Article on polycyclic aromatic nitrogen heterocycles and fluorescence emission behavior of select tetraaza- and diazaarenes in nonelectrolyte solvents.
Date:
February 1, 1993
Creator:
Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene) & Upton, Christopher
Object Type:
Article
System:
The UNT Digital Library
Rediscovery of the Elements: The Platinum Metals
Article describing the history of the platinum metals, from its discovery in the New World and subsequent experiments in Europe. Tourist information is provided regarding areas pertinent to the history of platinum.
Date:
Spring 2009
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
High-Temperature Kinetics of the Reaction between Chlorine Atoms and Hydrogen Sulfide
Article on high-temperature kinetics of the reaction between chlorine atoms and hydrogen sulfide.
Date:
March 16, 2015
Creator:
Gao, Yide; Alecu, I. M.; Goumri, Abdellatif & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library