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Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay

Description: Article describing the discovery of argon, helium, and other inert gases by Lord Rayleigh, Sir William Ramsay, and other collaborators. Ramsay also characterized the noble gases and classified them within the structure of the Periodic Table of Elements.
Date: Autumn 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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Partner: UNT College of Arts and Sciences
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Rediscovery of the Elements: The Platinum Metals

Description: 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.
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Partner: UNT College of Arts and Sciences
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Rediscovery of the Elements: The Rare Earths - The Beginnings

Description: This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the ar… more
Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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Partner: UNT College of Arts and Sciences
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Rediscovery of the Elements: The Rare Earths - The Confusing Years

Description: This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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Partner: UNT College of Arts and Sciences
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Rediscovery of the Elements: The Road to Karlsruhe

Description: Article describing the history of atomic weight and the events leading up to the Karlsruhe Congress of chemists. The authors visited several sites pertinent to these events and offer tourist information.
Date: Spring 2007
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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Partner: UNT College of Arts and Sciences
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Rediscovery of the Elements: Thorium

Description: Article recounting the discovery of the element Thorium in Norway by Hans Morten Thrane Esmark. Maps and tourist information regarding the area are provided.
Date: Winter 2001
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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Partner: UNT College of Arts and Sciences
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Redox Non-Innoence Permits Catalytic Nitrene Carbonylation by (dadi)Ti=NAd (Ad = Adamantyl)

Description: This article describes (dadi)Ti(X/L) species that manifest redox non-innocence (RNI), including a rare instance in which carbon monoxide does not affect redox activity at the metal, and does not bind, thus permitting its use as a substrate in catalysis.
Date: March 3, 2017
Creator: Heins, Spencer P.; Wolczanski, Peter T.; Cundari, Thomas R., 1964- & MacMillan, Samantha N.
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Partner: UNT College of Arts and Sciences
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Reduced structural flexibility for an exonuclease deficient DNA polymerase III mutant

Description: This article reports on the dynamics of E coli DNA polymerase III proofreading in the presence of its processivity factor, the β₂-sliding clamp, at varying base pair termini using single-molecule FRET.
Date: September 3, 2018
Creator: Gahlon, Hailey L.; Walker, Alice R.; Cisneros, Gerardo Andrés; Lamers, Meindert H. & Rueda, David S.
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Partner: UNT College of Science
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Reference materials for phase equilibrium studies. 1. Liquid–liquid equilibria (IUPAC Technical Report)

Description: This article is the first of three projected IUPAC Technical Reports resulting from IUPAC Project 2011-037-2-100 (Reference Materials for Phase Equilibrium Studies). This report proposes seven systems for liquid–liquid equilibrium studies, covering the four most common categories of binary mixtures: aqueous systems of moderate solubility, non-aqueous systems, systems with low solubility, and systems with ionic liquids.
Date: July 8, 2021
Creator: Bazyleva, Ala; Acree, William E. (William Eugene); Chirico, Robert D.; Diky, Vladimir; Hefter, Glenn T.; Jacquemin, Johan et al.
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Partner: UNT College of Science
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Regulating C2H2/CO2 adsorption selectivity by electronic-state manipulation of iron in metal-organic frameworks

Description: Article reports a metal electronic-state manipulation strategy to construct a pair of isostructural and interconvertible Fe-MOFs featuring open Fe centers with different electron densities for efficient Câ‚‚Hâ‚‚/COâ‚‚ separation. The authors show that the presence of Fe[II] centers with a medium-spin-state trail plays a crucial role in the enhanced Câ‚‚Hâ‚‚ selective adsorption.
Date: July 20, 2022
Creator: Chen, Cheng-Xia; Pham, Tony; Tan, Kui; Krishna, Rajamani; Lan, Pui Ching; Wang, Longfei et al.
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Partner: UNT College of Science
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Relative Rate and Product Studies of the Reactions of Atomic Chlorine With Tetrafluoroethylene, 1,2-Dichloro-1,2-Difluoroethylene, 1,1-Dichloro-2,2-Difluoroethylene, and Hexafluoro-1,3-Butadiene in the Presence of Oxygen

Description: This article assesses rates of reactions in the context of atmospheric chemistry.
Date: August 31, 2016
Creator: Herath, Thushani N.; Clinch, Eric C.; Orozco, Ivan; Raign, Erin L. & Marshall, Paul
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Partner: UNT College of Arts and Sciences
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