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Rediscovery of the Elements: Europium. Eugène Demarcay (open access)

Rediscovery of the Elements: Europium. Eugène Demarcay

Article describing Eugène Demarcay and his discovery of europium. The authors toured Paris, France, in search of locations important to Demarcay, providing the reader with maps and historical information regarding the sites.
Date: Summer 2003
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Rediscovery of the Elements: Agricola (open access)

Rediscovery of the Elements: Agricola

Article describing the career and discoveries of Georgius Agricola. Tourist information regarding locations important to his life are visited and discussed.
Date: Autumn 2005
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Rediscovery of the Elements: The Grand Tour (open access)

Rediscovery of the Elements: The Grand Tour

Article advertising the release of "Rediscovery of the Elements" on DVD with additional information.
Date: Autumn 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Rediscovery of the Elements: Jáchymov (Joachimsthal), Czech Republic (open access)

Rediscovery of the Elements: Jáchymov (Joachimsthal), Czech Republic

Article describing Jáchymov, Czech Republic, and its relation to radon. Tourist information is included for pertinent areas.
Date: Winter 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Nikolaikirche and Apotheke zum Bären, Berlin, Germany (open access)

Nikolaikirche and Apotheke zum Bären, Berlin, Germany

Front cover of volume 100, issue 1 of The Hexagon, featuring the multistory brick and stone church, Nikolaikirche. The church's first several floors are comprised of older stone work while the upper stories use newer red brick. People and vehicles are on the street near the church, and a row of buildings can be seen in the background to the left. The magazine's logo is printed over the church's bluish roof spires. The inside cover contains a table of contents, staff credits, and an editorial.
Date: Spring 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Delivering Pretzels in Berlin (open access)

Delivering Pretzels in Berlin

Front cover of the Winter 2009 issue of The Hexagon, featuring a man in a Berlin shirt riding a bicycle laden with large pretzels. A small dog on a leash follows alongside of him. The inside cover has a table of contents, a list of staff, and an editorial.
Date: Winter 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Youth in Apuseni Mountains, Romania, Near the Discovery Site of Tellurium (open access)

Youth in Apuseni Mountains, Romania, Near the Discovery Site of Tellurium

Front cover of the Spring 2010 issue of The Hexagon, featuring an adolescent boy wearing a sweater, corduroy pants, and boots while holding a lamb across his shoulders. He looks at the camera while standing in a bare patch of earth with grass and fallen branches behind him. To his left appear three round pictures relating to this issue's articles. The inside cover contains a table of contents, staff listings, and an editorial.
Date: Spring 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Rediscovering the Periodic Table, One Element at a Time (open access)

Rediscovering the Periodic Table, One Element at a Time

Article describing James and Virginia Marshall's quest to visit the birthplace of all the elements on the periodic table. The article mentions that they have released a DVD and were interviewed on "Here and Now."
Date: Autumn 2010
Creator: unknown
Object Type: Article
System: The UNT Digital Library
Die Köpfe (The Heads) (open access)

Die Köpfe (The Heads)

Front cover of the winter 2010 issue of the Hexagon, which features a sculpture of a bearded head. The inside cover includes a table of contents, a list of staff, an editorial, and a description of the cover.
Date: Winter 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Statue of James Prescott Joule (open access)

Statue of James Prescott Joule

Front cover of the spring 2011 issue of the Hexagon, which features a statue James Joule wearing a coat and sitting in a chair. The inside cover includes a table of contents, a list of staff, an editorial, and a description of the cover.
Date: Spring 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
St. Anne's Church in Vilnius, Lithuania (open access)

St. Anne's Church in Vilnius, Lithuania

Front cover of the 2011 issue of The Hexagon, featuring St. Anne's church in Vilnius, Lithuania. The Gothic red brick building looms above a street bustling with activity. The inside cover contains a table of contents, staff credits, an editorial, and a description of the front cover.
Date: Summer 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
The 2011 Beta Eta Spring Banquet. Celebration of Rediscovery of the Elements (open access)

The 2011 Beta Eta Spring Banquet. Celebration of Rediscovery of the Elements

Article describing an Eta Beta celebration of the completion of James and Virginia Marshall's "Rediscovery of the Elements." Photographs from the event are included. Three separate articles appear on the right side of the page.
Date: Summer 2011
Creator: Marshall, James L., 1940-
Object Type: Article
System: The UNT Digital Library
Recent Foolery in the Periodic Table (open access)

Recent Foolery in the Periodic Table

Article which satirically claims that several elements on the periodic table were faked.
Date: Winter 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Pharmacy at Quedlinburg (open access)

Pharmacy at Quedlinburg

Front cover of the spring 2012 issue of The Hexagon, featuring the pharmacy at Quedlinburg, Germany, where Martin Heinrich Klaproth was trained. The three story building is pinkish with white trim around its windows. A triangular stone piece with the image of a flying bird sits on the third floor over the entrance. The inside cover of the magazine contains a table of contents, staff listings, an editorial, and a description of the building.
Date: Spring 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Helium Monument (open access)

Helium Monument

Front cover of the summer 2012 issue of The Hexagon, which features the Helium Monument in Amarillo, Texas. The visible portion of this monument is a metal sculpture of a helium molecule hanging from the center of a structure of metal bars. The inside cover contains a table of contents, a staff list, an editorial, and a description of the Helium Monument.
Date: Summer 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
The Multi-reference Correlation Consistent Composite Approach: A New Vista In Quantitative Prediction Of Thermochemical And Spectroscopic Properties (open access)

The Multi-reference Correlation Consistent Composite Approach: A New Vista In Quantitative Prediction Of Thermochemical And Spectroscopic Properties

The multi-reference correlation consistent composite approach (MR-ccCA) was designed to reproduce the accuracy of more computationally intensive ab initio quantum mechanical methods like MR-ACPF-DK/aug-cc-pCV?Z-DK, albeit at a significantly reduced cost. In this dissertation, the development and applications of the MR-ccCA method and a variant of its single reference equivalent (the relativistic pseudopotential ccCA method) are reported. MR-ccCA is shown to predict the energetic properties of reactive intermediates, excited states species and transition states to within chemical accuracy (i.e. ±1.0 kcal mol 1) of reliable experimental values. The accuracy and versatility of MR-ccCA are also demonstrated in the prediction of the thermochemical and spectroscopic properties (such as atomization energies, enthalpies of formation and adiabatic transition energies of spin-forbidden excited states) of a series of silicon-containing compounds. The thermodynamic and kinetic feasibilities of the oxidative addition of an archetypal arylglycerol ?-aryl ether (?-O-4 linkage) substructure of lignin to Ni, Cu, Pd and Pt transition metal atoms using the efficient relativistic pseudopotential correlation consistent composite approach within an ONIOM framework (rp-ccCA-ONIOM), a multi-level multi-layer QM/QM method formulated to enhance the quantitative predictions of the chemical properties of heavy element-containing systems larger than hitherto attainable, are also reported.
Date: December 2011
Creator: Oyedepo, Gbenga A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Response to "A critique of Abraham and Acree's correlation for deca-1,9-diene/water partition coefficients"

This article is a response to "A critique of Abraham and Acree's correlation for deca-1,9-diene/water partition coefficients," published in New Journal of Chemistry, 2013.
Date: February 1, 2013
Creator: Abraham, M. H. (Michael H.) & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Correlation of Solute Transfer Into Toluene and Ethylbenzene from Water and from the Gas Phase Based on the Abraham Model (open access)

Correlation of Solute Transfer Into Toluene and Ethylbenzene from Water and from the Gas Phase Based on the Abraham Model

This article discusses correlation of solute transfer into toluene and ethylbenzene from water and from the gas phase based on the Abraham model.
Date: 2011
Creator: Stephens, Timothy W.; Loera, Matthew; Quay, Amanda N.; Chou, Vicky; Shen, Connie; Wilson, Anastasia et al.
Object Type: Article
System: The UNT Digital Library
The Biological and Toxicological Activity of Gases and Vapors (open access)

The Biological and Toxicological Activity of Gases and Vapors

Article discussing research on the biological and toxicological activity of gases and vapors.
Date: March 2010
Creator: Abraham, M. H. (Michael H.); Sánchez-Moreno, Ricardo; Gil-Lostes, Javier; Acree, William E. (William Eugene); Cometto-Muñiz, J. Enrique & Cain, William S.
Object Type: Article
System: The UNT Digital Library
Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Dimethyl Sulfoxide and Propylene Carbonate Based on the Abraham Model (open access)

Enthalpy of Solvation Correlations for Gaseous Solutes Dissolved in Dimethyl Sulfoxide and Propylene Carbonate Based on the Abraham Model

This article discusses enthalpy of solvation correlations for gaseous solutes dissolved in dimethyl sulfoxide and propylene carbonate based on the Abraham model.
Date: July 2007
Creator: Mintz, Christina; Acree, William E. (William Eugene); Burton, Katherine & Abraham, M. H. (Michael H.)
Object Type: Article
System: The UNT Digital Library
Mathematical correlations for describing enthalpies of solvation of organic vapors and gaseous solutes into ionic liquid solvents (open access)

Mathematical correlations for describing enthalpies of solvation of organic vapors and gaseous solutes into ionic liquid solvents

Article discussing the mathematical correlations for describing enthalpies of solvation of organic vapors and gaseous solutes into ionic liquid solvents.
Date: September 20, 2010
Creator: Grubbs, Laura M.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Object Type: Article
System: The UNT Digital Library
Synthetic Approaches to (smif)₂Ti (smif=1,3-di-(2-pyridyl)-2-azaallyl) Reveal Redox Non-Innocence and C-C Bond-Formation (open access)

Synthetic Approaches to (smif)₂Ti (smif=1,3-di-(2-pyridyl)-2-azaallyl) Reveal Redox Non-Innocence and C-C Bond-Formation

Article discussing synthetic approaches to (smif)₂Ti(smif=1,3-di-(2-pyridyl)-2-azallyl) revealing redox non-innocence and C-C bond-formation.
Date: July 25, 2012
Creator: Frazier, Brenda A.; Wolczanski, Peter T.; Keresztes, Ivan; DeBeer, Serena 1973-; Lobkovsky, Emil B.; Pierpont, Aaron W. et al.
Object Type: Article
System: The UNT Digital Library
A New Chromophoric Organic Molecule Toward Improved Molecular Optoelectronic Devices (open access)

A New Chromophoric Organic Molecule Toward Improved Molecular Optoelectronic Devices

The characterization of 2,3,6,7,10,11-hexabromotriphenylene, Br6TP, is presented toward its potential use as an n-type organic semiconductor and metal-free room temperature phosphor. The crystal structure shows both anisotropic two-dimensional BrBr interactions and inter-layer ?-stacking interactions. Photophysical characteristics were evaluated using solid-state photoluminescence and diffuse reflectance spectroscopies, revealing significantly red-shifted excitations in the visible region for the yellow solid material (compared to ultraviolet absorption bands for the colorless dilute solutions). Correlation of spectral, electrochemical, and computational data suggest the presence of an n-type semiconducting behavior due to the electron-poor aromatic ring. The material shows excellent thermal stability as demonstrated by thermogravimetric analysis and infrared spectra of a thin film deposited by thermal evaporation. The potential for Br6TP and its analogues toward use in several types of photonic and electronic devices is discussed.
Date: December 2012
Creator: Halbert, Jason Paul
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Enthalpy of Solvation Correlations for Organic Solutes and Gases Dissolved in 1-Propanol and Tetrahydrofuran (open access)

Enthalpy of Solvation Correlations for Organic Solutes and Gases Dissolved in 1-Propanol and Tetrahydrofuran

This article discusses the enthalpy of solvation correlations for organic solutes and gases dissolved in 1-propanol and tetrahydrofuran.
Date: May 20, 2011
Creator: Stephens, Timothy W.; Chou, Vicky; Quay, Amanda N.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Object Type: Article
System: The UNT Digital Library