States

43 Matching Results

Results open in a new window/tab.

Symmetry breaking charge transfer leading to charge separation in a far-red absorbing bisstyryl-BODIPY dimer (open access)

Symmetry breaking charge transfer leading to charge separation in a far-red absorbing bisstyryl-BODIPY dimer

Article describes how symmetry breaking charge transfer is one of the important photo-events occurring in photosynthetic reaction centers that is responsible for initiating electron transfer leading to a long-lived charge-separated state and has been successfully employed in light-to-electricity converting optoelectronic devices. In this study, the authors report a newly synthesized, far-red absorbing and emitting BODIPY-dimer to undergo symmetry-breaking charge transfer leading to charge-separated states of appreciable lifetimes in polar solvents.
Date: December 15, 2023
Creator: Yahagh, Aida; Kaswan, Ram R.; Kazemi, Shahrzad; Karr, Paul A. & D'Souza, Francis
Object Type: Article
System: The UNT Digital Library
The chemical coupling between moist CO oxidation and gas-phase potassium sulfation (open access)

The chemical coupling between moist CO oxidation and gas-phase potassium sulfation

Article discusses how the chemical coupling between moist CO oxidation and transformation of gaseous potassium salts (KCl or KOH) in the presence and absence of SO2 was investigated experimentally and through chemical kinetic modeling. Analysis of the calculations indicates that sulfation pathways in the model involving KOSO3 contribute to the overprediction, but both the thermodynamic properties and rate constants in the model involve significant uncertainties and more work is required to resolve the discrepancy.
Date: December 15, 2022
Creator: Chanpirak, Arphaphon; Hashemi, Hamid; Frandsen, Flemming; Wu, Hao; Glarborg, Peter & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
Development of Novel Approaches to Earth-abundant Methane Catalysis (open access)

Development of Novel Approaches to Earth-abundant Methane Catalysis

Data management plan for the grant "Development of Novel Approaches to Earth-abundant Methane Catalysis." Research on catalytic cycles for C–H activation and functionalization of light alkanes based on the CMD (concerted metalation deprotonation) mechanism will be modeled for Earth-abundant metal dicarboxylates and related complexes. The impact of inner and outer coordination sphere effects upon catalytic cycles for light alkane functionalization will be assessed using computational chemistry techniques. The aforementioned studies will be leveraged to identify promising, synthetically feasible lead catalysts for experimental collaborators.
Date: 2021-08-15/2024-08-14
Creator: Cundari, Thomas R., 1964-
Object Type: Text
System: The UNT Digital Library
Selective Noncatalytic Reduction of NOx Using Ammonium Sulfate (open access)

Selective Noncatalytic Reduction of NOx Using Ammonium Sulfate

Article discusses how ammonium sulfate (AS) is of interest as an additive in stationary combustion plants for the simultaneous control of NOx (through selective noncatalytic reduction, SNCR) and deposition and corrosion (through sulfation of alkali chlorides). The results indicated that sulfur from ammonium sulfate is mainly released as SO3, even though SO2 is detected in increasing concentrations at temperatures above 1000 °C. This is the accepted manuscript version of the published article.
Date: July 15, 2021
Creator: Krum, Kristian R. K.; Jensen, Martin; Li, Songgeng; Norman, Thomas; Marshall, Paul; Wu, Hao et al.
Object Type: Article
System: The UNT Digital Library
Bifunctional activation of methane by bioinspired transition metal complexes. A simple methane protease model (open access)

Bifunctional activation of methane by bioinspired transition metal complexes. A simple methane protease model

Article modeling Metal-based bifunctional methane activators using density functional theory. The research yields insight into possible avenues for bio-inspired methane activators.
Date: February 15, 2021
Creator: Anderson, Mary E.; Marks, Michael B. & Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library
Kinetic fall-off behavior for the Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction (open access)

Kinetic fall-off behavior for the Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction

Article discusses how rate coefficients, k, for the gas-phase Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction were measured over the 15–500 torr (He and N2 bath gas) pressure range at temperatures between 283 and 323 K. An atmospheric degradation mechanism for C4H2O3 is proposed based on the observed product yields and theoretical calculations of ring-opening pathways and activation barrier energies at the CBS-QB3 level of theory. This is the accepted manuscript version of the published article.
Date: February 15, 2021
Creator: Chattopadhyay, Aparajeo; Gierczak, Tomasz; Marshall, Paul; Papadimitriou, Vassileios C. & Burkholder, James B. (James Bart), 1954-
Object Type: Article
System: The UNT Digital Library
PMFF: Development of a Physics-Based Molecular Force Field for Protein Simulation and Ligand Docking (open access)

PMFF: Development of a Physics-Based Molecular Force Field for Protein Simulation and Ligand Docking

Article describes the development of a physics-based molecular force field (PMFF) by integrating a set of potential energy functions in which each term in an intermolecular potential energy function is derived based on experimental values, such as the dipole moments, lattice energy, proton transfer energy, and X-ray crystal structures.
Date: January 15, 2020
Creator: Hwang, Sung Bo; Lee, Chang Joon; Lee, Sehan; Ma, Songling; Kang, Young-Mook; Cho, Kwang-Hwi et al.
Object Type: Article
System: The UNT Digital Library
Coordination corrected ab initio formation enthalpies (open access)

Coordination corrected ab initio formation enthalpies

Article proposes the “coordination corrected enthalpies” method (CCE), based on the number of nearest neighbor cation–anion bonds, and also capable of correcting relative stability of polymorphs.
Date: May 15, 2019
Creator: Friedrich, Rico; Usanmaz, Demet; Oses, Corey; Supka, Andrew; Fornari, Marco; Buongiorno Nardelli, Marco et al.
Object Type: Article
System: The UNT Digital Library
Comments Concerning “Measurement of the Solubility of the Salt of 2-Mercaptobenzothiazole With Cyclohexylamine and Tert-Butylamine in Various Solvents at Low Temperatures: Models and Thermodynamic Parameters” (open access)

Comments Concerning “Measurement of the Solubility of the Salt of 2-Mercaptobenzothiazole With Cyclohexylamine and Tert-Butylamine in Various Solvents at Low Temperatures: Models and Thermodynamic Parameters”

This article identifies several errors in the published paper by Wongkaew and coworkers [Fluid Phase Equilibria 434 (2017) 141-151].
Date: February 15, 2018
Creator: Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Simultaneous Direct Holographic Fabrication of Photonic Cavity and Graded Photonic Lattice With Dual Periodicity, Dual Basis, and Dual Symmetry (open access)

Simultaneous Direct Holographic Fabrication of Photonic Cavity and Graded Photonic Lattice With Dual Periodicity, Dual Basis, and Dual Symmetry

This article demonstrates the digital, holographic fabrication of graded, super-basis photonic lattices with dual periodicity, dual basis, and dual symmetry.
Date: June 15, 2017
Creator: Lowell, David; Lutkenhaus, Jeffrey; George, David; Philipose, Usha; Chen, Banglin & Lin, Yuankun
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
Solubility of Tris(hydroxymethyl)aminomethane in Water + Methanol + 1-Propanol Mixtures at Various Temperatures (open access)

Solubility of Tris(hydroxymethyl)aminomethane in Water + Methanol + 1-Propanol Mixtures at Various Temperatures

Article on the solubility of tris(hydroxymethyl)aminomethane in water + methanol + 1-propanol mixtures at various temperatures.
Date: July 15, 2015
Creator: Jouyban-Gharamaleki, Vahid; Jouyban-Gharamaleki, Karim; Soleymani, Jafar; Acree, William E. (William Eugene); Kenndler, Ernst & Jouyban, Abolghasem
Object Type: Article
System: The UNT Digital Library
Deduction of physiochemical properties from solubilities: 2,4-dihydroxybenzophenone, biotin, and caprolactam as examples (open access)

Deduction of physiochemical properties from solubilities: 2,4-dihydroxybenzophenone, biotin, and caprolactam as examples

Article discussing the deduction of physiochemical properties from solubilities and 2,4-dihydroxybenzophenone, biotin, and caprolactam as examples.
Date: April 15, 2015
Creator: Abraham, M. H. (Michael H.); Acree, William E. (William Eugene); Brumfield, Michela; Hart, Erin; Pipersburgh, Lila; Mateja, Katherine et al.
Object Type: Article
System: The UNT Digital Library
On the Solubility of Quercetin (open access)

On the Solubility of Quercetin

Article discussing the solubility of quercetin. The authors have applied a methodology based on linear free energy equations for water-solvent and gas-solvent partitions to study solubilities.
Date: May 15, 2014
Creator: Abraham, M. H. (Michael H.) & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Nanomanipulation Coupled Nanospray Mass Spectrometry (NMS) (open access)

Nanomanipulation Coupled Nanospray Mass Spectrometry (NMS)

Patent relating to nanomanipulation coupled nanospray mass spectrometry (NMS).
Date: March 12, 2013
Creator: Verbeck, Guido F.
Object Type: Patent
System: The UNT Digital Library
IUPAC-NIST Solubility Data Series. 99. Solubility of Benzoic Acid and Substituted Benzoic Acids in Both Neat Organic Solvents and Organic Solvent Mixtures. (open access)

IUPAC-NIST Solubility Data Series. 99. Solubility of Benzoic Acid and Substituted Benzoic Acids in Both Neat Organic Solvents and Organic Solvent Mixtures.

Article on the solubility of benzoic acid and substituted benzoic acids in both neat organic solvents and organic solvent mixtures.
Date: May 15, 2013
Creator: Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Abraham Model Correlations for Transfer of Neutral Molecules and Ions to Sulfolane (open access)

Abraham Model Correlations for Transfer of Neutral Molecules and Ions to Sulfolane

Article on Abraham model correlations for the transfer of neutral molecules and ions to sulfolane.
Date: October 15, 2011
Creator: Stephens, Timothy W.; De la Rosa, Nohelli E.; Saifullah, Mariam; Ye, Shulin; Chou, Vicky; Quay, Amanda N. et al.
Object Type: Article
System: The UNT Digital Library
The transfer of neutral molecules, ions and ionic species from water to benzonitrile; comparison with nitrobenzene (open access)

The transfer of neutral molecules, ions and ionic species from water to benzonitrile; comparison with nitrobenzene

Article on the transfer of neutral molecules, ions and ionic species from water to benzonitrile and a comparison with nitrobenzene.
Date: October 15, 2011
Creator: Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.)
Object Type: Article
System: The UNT Digital Library
Mathematical Correlations for Describing Solute Transfer into Functionalized Alkane Solvents Containing Hydroxyl, Ether, Ester or Ketone Solvents (open access)

Mathematical Correlations for Describing Solute Transfer into Functionalized Alkane Solvents Containing Hydroxyl, Ether, Ester or Ketone Solvents

This article discusses mathematical correlations for describing solute transfer into functionalized alkane solvents containing hydroxyl, ether, ester or ketone solvents.
Date: November 15, 2010
Creator: Grubbs, Laura M.; Saifullah, Mariam; De la Rosa, Nohelli E.; Ye, Shulin; Achi, Sai S.; Acree, William E. (William Eugene) et al.
Object Type: Article
System: The UNT Digital Library
Computational study on NiA1: ground state, structure, and spectroscopic constants using density-functional theory (open access)

Computational study on NiA1: ground state, structure, and spectroscopic constants using density-functional theory

This paper discusses a computational study on NiA1 and ground state, structure, and spectroscopic constants using density-functional theory.
Date: April 15, 2010
Creator: Janardan, Smitha S. & Cundari, Thomas R., 1964-
Object Type: Paper
System: The UNT Digital Library

Quantum Mechanical Prediction of the Existence of Rare Gas-bound Species

Presentation for the 2010 University Scholars Day at the University of North Texas discussing quantum mechanical prediction of the existence of rare gas-bound species.
Date: April 15, 2010
Creator: Shi, Katheryn; Wilson, Angela K. & Wilson, Brent
Object Type: Presentation
System: The UNT Digital Library

Teaching Students Organic Chemistry: QEP III Next Generation Course Redesign™

Presentation for the 2010 University Scholars Day at the University of North Texas discussing teaching students organic chemistry and a QEP III Next Generation course redesign.
Date: April 15, 2010
Creator: Lavezo, Jonathan L. & Dandekar, Sushama Ashok
Object Type: Presentation
System: The UNT Digital Library
Teaching Students Organic Chemistry: QEP III Next Generation Course Redesign™ (open access)

Teaching Students Organic Chemistry: QEP III Next Generation Course Redesign™

This paper discusses research on teaching students organic chemistry and a QEP III Next Generation (N-Gen) Course Redesign project.
Date: April 15, 2010
Creator: Lavezo, Jonathan L. & Dandekar, Sushama Ashok
Object Type: Paper
System: The UNT Digital Library
Periodic and Molecular Modeling Study of Donor - Acceptor Interactions in (dbbpy)Pt(tdt) • TENF and [Pt(dbbpy)(tdt)]₂ • TENF (open access)

Periodic and Molecular Modeling Study of Donor - Acceptor Interactions in (dbbpy)Pt(tdt) • TENF and [Pt(dbbpy)(tdt)]₂ • TENF

This article discusses a periodic and molecular modeling study. Supramolecular stacked materials (dbbpy)Pt(tdt)•TENF and [Pt(dbbpy)(tdt)]₂•TENF are built from (dbbpy)Pt(tdt) donors (D) with TENF acceptors (A) (TENF = 2,4,5,7-tetranitro-9-fluorenone; dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine; tdt = 3,4-toluenedithiolate).
Date: January 15, 2010
Creator: Cundari, Thomas R., 1964-; Chilukuri, Bhaskar; Hudson, Joshua M.; Minot, Christian; Omary, Mohammad A. & Rabaâ, Hassan
Object Type: Article
System: The UNT Digital Library