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Abraham Solvation Parameter Model: Calculation of L Solute Descriptors for Large C11 to C42 Methylated Alkanes from Measured Gas–Liquid Chromatographic Retention Data (open access)

Abraham Solvation Parameter Model: Calculation of L Solute Descriptors for Large C11 to C42 Methylated Alkanes from Measured Gas–Liquid Chromatographic Retention Data

This article determines Abraham model L solute descriptors for 149 additional C11 to C42 monomethylated and polymethylated alkanes based on published Kovat’s retention indices based upon gas–liquid chromatographic measurements.
Date: July 5, 2022
Creator: Wu, Emily; Sinha, Sneha; Yang, Chelsea; Zhang, Miles & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Abraham Solvation Parameter Model: Examination of Possible Intramolecular Hydrogen-Bonding Using Calculated Solute Descriptors (open access)

Abraham Solvation Parameter Model: Examination of Possible Intramolecular Hydrogen-Bonding Using Calculated Solute Descriptors

This article calculates Abraham model solute descriptors using published solubility data for 4,5-dihydroxyanthraquinone-2-carboxylic acid dissolved in several organic solvents of varying polarity and hydrogen-bonding character.
Date: July 24, 2022
Creator: Sinha, Sneha; Yang, Chelsea; Wu, Emily & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Increasing the Equilibrium Solubility of Meloxicam in Aqueous Media by Using Dimethyl Sulfoxide as a Cosolvent: Correlation, Dissolution Thermodynamics and Preferential Solvation (open access)

Increasing the Equilibrium Solubility of Meloxicam in Aqueous Media by Using Dimethyl Sulfoxide as a Cosolvent: Correlation, Dissolution Thermodynamics and Preferential Solvation

This article studies the solubility of meloxicam in dimethyl sulfoxide (DMSO)-aqueous solvent systems at several temperatures from 273.15 to 313.15 K to expand the solubility database about analgesic drugs in mixed solvents.
Date: August 12, 2022
Creator: Tinjacá, Darío; Martínez, Fleming; Almanza, Ovidio A.; Peña, María Á.; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Expanding the Equilibrium Solubility and Dissolution Thermodynamics of Benzoic Acid in Aqueous Alcoholic Mixtures (open access)

Expanding the Equilibrium Solubility and Dissolution Thermodynamics of Benzoic Acid in Aqueous Alcoholic Mixtures

This article determines the equilibrium solubility of benzoic acid in water and ethanol, as well as in nine {ethanol (1) + water (2)} mixtures from T = (293.15 to 323.15) K. The thermodynamic results presented could be useful in optimizing different physical and chemical processes involving benzoic acid in mixed aqueous-ethanol media.
Date: August 1, 2022
Creator: Akay, Sema; Kayan, Berkant; Peña, M. Ángeles; Jouyban, Abolghasem; Martínez, Fleming & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Regulating C2H2/CO2 adsorption selectivity by electronic-state manipulation of iron in metal-organic frameworks (open access)

Regulating C2H2/CO2 adsorption selectivity by electronic-state manipulation of iron in metal-organic frameworks

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 C₂H₂/CO₂ separation. The authors show that the presence of Fe[II] centers with a medium-spin-state trail plays a crucial role in the enhanced C₂H₂ selective adsorption.
Date: July 20, 2022
Creator: Chen, Cheng-Xia; Pham, Tony; Tan, Kui; Krishna, Rajamani; Lan, Pui Ching; Wang, Longfei et al.
Object Type: Article
System: The UNT Digital Library
Soft Metal Cations Trigger Sandwich-Cluster Luminescence of a New Au(I)-Vinylimidazolate Cyclic Trinuclear Complex (open access)

Soft Metal Cations Trigger Sandwich-Cluster Luminescence of a New Au(I)-Vinylimidazolate Cyclic Trinuclear Complex

Article presenting results from a study where a new gold(I)-vinylimidazolate CTC, 1, was prepared and the formation of highly emissive sandwich adducts with the soft metal cations Cu+, Ag+, and Tl+, 2–4, respectively, was investigated.
Date: February 14, 2022
Creator: Lu, Zhou; Burini, Alfredo; McDougald, Roy N., Jr.; Ricci, Simone; Luciani, Lorenzo; Nesterov, Vladimir N. et al.
Object Type: Article
System: The UNT Digital Library
Preferential Solvation Study of the Synthesized Aldose Reductase Inhibitor (SE415) in the {PEG 400 (1) + Water (2)} Cosolvent Mixture and GastroPlus-Based Prediction (open access)

Preferential Solvation Study of the Synthesized Aldose Reductase Inhibitor (SE415) in the {PEG 400 (1) + Water (2)} Cosolvent Mixture and GastroPlus-Based Prediction

This article presents evidence that the binary cosolvent system can be a promising approach for enhanced oral absorption in controlling diabetes mellitus (DM) and associated complications in humans.
Date: January 2, 2022
Creator: Hussain, Afzal; Altamimi, Mohammad A.; Afzal, Obaid; Altamimi, Abdulmalik S. A.; Ali, Abuzer; Ali, Amena et al.
Object Type: Article
System: The UNT Digital Library
Converging Cooperative Functions into the Nanospace of Covalent Organic Frameworks for Efficient Uranium Extraction from Seawater (open access)

Converging Cooperative Functions into the Nanospace of Covalent Organic Frameworks for Efficient Uranium Extraction from Seawater

Article reports a new strategy for efficient extraction of uranium from seawater via converging the cooperative functions of adsorption–photocatalysis into the nanospace of covalent organic frameworks (COFs). This study establishes multicomponent COFs as promising candidates for efficient uranium extraction from seawater.
Date: July 14, 2022
Creator: Hao, Mengjie; Chen, Zhongshan; Liu, Xiaolu; Liu, Xianhai; Zhang, Juyao; Yang, Hui et al.
Object Type: Article
System: The UNT Digital Library
Biomimics of [FeFe]-hydrogenases incorporating redox-active ligands: synthesis, redox properties and spectroelectrochemistry of diiron-dithiolate complexes with ferrocenyl-diphosphines as Fe4S4 surrogates (open access)

Biomimics of [FeFe]-hydrogenases incorporating redox-active ligands: synthesis, redox properties and spectroelectrochemistry of diiron-dithiolate complexes with ferrocenyl-diphosphines as Fe4S4 surrogates

Article prepares and characterizes a small series of new [FeFe]-ase biomimics which contain a ferrocenyl diphosphine as a surrogate for the Fe₄S₄ moiety in the H-cluster of the enzyme. Mechanistic details of both proton reduction and H₂ oxidation have been studied by DFT allowing speculative reaction schemes to be developed.
Date: June 6, 2022
Creator: Orton, Georgia R. F.; Ghosh, Shishir; Alker, Lucy; Sarker, Jagodish C.; Pugh, David; Richmond, Michael G. et al.
Object Type: Article
System: The UNT Digital Library
Analyzing existing support structures for transfer students in Chemistry between the University of North Texas and Dallas College (open access)

Analyzing existing support structures for transfer students in Chemistry between the University of North Texas and Dallas College

Data management plan for a grant seeking to analyze existing support structures for transfer students in Chemistry between the University of North Texas and Dallas College.
Date: 2022-12-01/2023-11-30
Creator: Atkinson, Molly B.
Object Type: Text
System: The UNT Digital Library
Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize (open access)

Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize

Data management plan for the grant, "Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize." Sarocladium zeae is a fungus that naturally grows within corn and produces pyrrocidines, compounds that inhibit the production of two exogenous threats to maize, aflatoxins and fumonisins. This project aims to identify other natural products that may be produced by S. zeae through genetic modification in native and non-native fungal hosts to ensure there are no toxins present. In doing so, further information will be gathered about the possibility of using S. zeae as a targeted biocontrol agent that protects against exogenous threats while remaining safe for consumption.
Date: 2023-06-01/2026-05-31
Creator: Skellam, Elizabeth & Schoellhorn, Sydney
Object Type: Text
System: The UNT Digital Library
The Molecular Building Block Sampling Approach for Polymorphic Free Energy Calculations (open access)

The Molecular Building Block Sampling Approach for Polymorphic Free Energy Calculations

Data management plan for the grant, "The Molecular Building Block Sampling Approach for Polymorphic Free Energy Calculations."
Date: 2023-07-01/2024-06-30
Creator: Valsson, Omar
Object Type: Text
System: The UNT Digital Library
Participation of alkali and sulfur in ammonia combustion chemistry: Investigation for ammonia/solid fuel co-firing applications (open access)

Participation of alkali and sulfur in ammonia combustion chemistry: Investigation for ammonia/solid fuel co-firing applications

Article asserts that ammonia (NH3) is a promising carbon-free energy carrier. The authors used experimental characterization and modeling to study the participation of alkali and sulfur species in ammonia conversion in a post-flame environment, focusing on the characteristics of NO emissions and NH3 slip.
Date: June 13, 2022
Creator: Weng, Wubin; Li, Zhongshan; Marshall, Paul & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
An experimental and chemical kinetic modeling study of the role of potassium in the moist oxidation of CO (open access)

An experimental and chemical kinetic modeling study of the role of potassium in the moist oxidation of CO

Article investigates the effect of KCl on moist CO oxidation in a laminar flow quartz reactor. Experiments were conducted in the absence of O2 (gasification), as well as under reducing and fuel-lean conditions, in the temperature range 873–1573 K, and the results were interpreted in terms of a chemical kinetic model.
Date: December 9, 2022
Creator: Chanpirak, Arphaphon; Wu, Hao; Glarborg, Peter & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
Metal-organic framework nanocrystal-derived hollow porousmaterials: Synthetic strategies and emerging applications (open access)

Metal-organic framework nanocrystal-derived hollow porousmaterials: Synthetic strategies and emerging applications

Article discusses how the fascinating, functional properties and applications of MOF-derived hollow porous materials primarily lie in their chemical composition, hollow character, and unique porous structure. The authors discuss a comprehensive overview of the synthetic strategies and emerging applications of hollow porous materials derived from MOF-based templates and/or precursors.
Date: September 13, 2022
Creator: Lui, Xiaolu; Verma, Guarav; Chen, Zhongshan; Hu, Baowei; Huang, Qifei; Yang, Hui et al.
Object Type: Article
System: The UNT Digital Library
Reweighted Manifold Learning of Collective Variables from Enhanced Sampling Simulations (open access)

Reweighted Manifold Learning of Collective Variables from Enhanced Sampling Simulations

Article provides a general reweighting framework based on anisotropic diffusion maps for manifold learning that takes into account that the learning data set is sampled from a biased probability distribution. The authors show that their proposed framework can be used in many manifold learning techniques on data from both standard and enhanced sampling simulations.
Date: November 11, 2022
Creator: Rydzewski, Jakub; Chen, Ming; Ghosh, Tushar K. & Valsson, Omar
Object Type: Article
System: The UNT Digital Library
The Crucial Role of Solvation Forces in the Steric Stabilization of Nanoplatelets (open access)

The Crucial Role of Solvation Forces in the Steric Stabilization of Nanoplatelets

Article says that the steric stability of inorganic colloidal particles in an apolar solvent is usually described in terms of the balance between three contributions: the van der Waals attraction, the free energy of mixing, and the ligand compression. The authors demonstrate that for sufficiently large nanoplatelets, solvation forces are proportional to the interacting facet area, and their strength is intrinsically tied to the softness of the ligand shell.
Date: December 9, 2022
Creator: Petersen, Nanning; Girard, Martin; Riedinger, Andreas & Valsson, Omar
Object Type: Article
System: The UNT Digital Library
Effect of N-Methyl-pyrrolidone (NMP) on the Equilibrium Solubility of Meloxicam in Aqueous Media: Correlation, Dissolution Thermodynamics, and Preferential Solvation (open access)

Effect of N-Methyl-pyrrolidone (NMP) on the Equilibrium Solubility of Meloxicam in Aqueous Media: Correlation, Dissolution Thermodynamics, and Preferential Solvation

Article describes a study of the drug Meloxicam in N-methyl-pyrrolidone (NMP)–aqueous mixtures at several temperatures to expand the solubility database about pharmaceutical compounds in aqueous–mixed solvents. Meloxicam is preferentially hydrated in water-rich mixtures but preferentially solvated by NMP in the composition interval of 0.16 < x1 < 1.00.
Date: October 14, 2022
Creator: Tinjacá, Darío; Martínez, Fleming; Almanza, Ovidio A.; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Three Component Cascade Reaction of Cyclohexanones, Aryl Amines, and Benzoylmethylene Malonates: Cooperative Enamine-Brønsted Acid Approach to Tetrahydroindoles (open access)

Three Component Cascade Reaction of Cyclohexanones, Aryl Amines, and Benzoylmethylene Malonates: Cooperative Enamine-Brønsted Acid Approach to Tetrahydroindoles

Article discusses how a three-component cascade reaction comprising cyclic ketones, arylamines, and benzoylmethylene malonates has been developed to access 4,5,6,7-tetrahydro-1H-indoles. Furthermore, the reaction was achieved through cooperative enamine-Brønsted catalysis in high yields with wide substrate scopes.
Date: November 30, 2022
Creator: Vasquez, Jose Cortes; Alharbi, Waad S.; Davis, Jacqkis; Moore, Alexia; Nesterov, Vladimir N.; Cundari, Thomas R., 1964- et al.
Object Type: Article
System: The UNT Digital Library
Unsymmetric Pentacene- and Pentacenequinone-Fused Porphyrins: Understanding the Effect of Cross- and Linear-Conjugation (open access)

Unsymmetric Pentacene- and Pentacenequinone-Fused Porphyrins: Understanding the Effect of Cross- and Linear-Conjugation

Article says that unsymmetric pentacenequinone-fused (cross-conjugated) and pentacene-fused (linear-conjugated) porphyrins were designed and synthesized. This work provides important and useful information on guiding new material designs.
Date: July 29, 2022
Creator: Moss, Austen; Nevonen, Dustin E.; Hu, Yi; Nesterov, Vladimir N.; Nemykin, Victor N. & Wang, Hong
Object Type: Article
System: The UNT Digital Library
A covalently linked nickel(II) porphyrin–ruthenium(II) tris(bipyridyl) dyad for efficient photocatalytic water oxidation (open access)

A covalently linked nickel(II) porphyrin–ruthenium(II) tris(bipyridyl) dyad for efficient photocatalytic water oxidation

Article describes how photocatalytic water splitting into H2 and O2 has attracted significant scientific interest for solar energy conversion applications during the last two decades. Authors of the article further elaborate that One of the half-reactions of this process, water oxidation, is known to be the key step in natural and artificial photosynthesis to convert and store solar energy.
Date: October 5, 2022
Creator: Nikoloudakis, Emmanouil; Alsaleh, Ajyal Z.; Charalambidis, Georgios; Coutsolelos, Athanassios G. & D'Souza, Francis
Object Type: Article
System: The UNT Digital Library
Stereochemical and Biosynthetic Rationalisation of the Tropolone Sesquiterpenoids (open access)

Stereochemical and Biosynthetic Rationalisation of the Tropolone Sesquiterpenoids

Article summarises the known structures, biological activities, and biosynthetic pathways of the tropolone sesquiterpenoid family of fungal secondary metabolites. Synthesis of this knowledge allows likely structural and stereochemical misassignments to be revised and shows how the compounds can be divided into three main biosynthetic classes based on the stereochemistry of key biosynthetic steps.
Date: August 31, 2022
Creator: Li, Lei & Cox, Russell, J.
Object Type: Article
System: The UNT Digital Library
Corrosion Inhibition Effect of Pyridine-2-Thiol for Brass in An Acidic Environment (open access)

Corrosion Inhibition Effect of Pyridine-2-Thiol for Brass in An Acidic Environment

Article states that the inhibitive performance of pyridine-2-thiol added to a corrosive solution was investigated for brass using potentiodynamic polarization, electrochemical impedance spectroscopy, and X-ray photoelectron spectroscopy. Scanning electron microscopy showed defect free and less scale formation for the inhibited surface but the bare brass surface had larger amounts of scale formation. X-ray photoelectron spectroscopy and UV-vis spectroscopy was used to investigate surface chemical composition and inhibitor structural changes over time.
Date: October 3, 2022
Creator: Karunarathne, Darshan Jayasinghe; Aminifazl, Alireza; Abel, Tori E.; Quepons, Karen L. & Golden, Teresa Diane, 1963-
Object Type: Article
System: The UNT Digital Library
Anomalous thermo-osmotic conversion performance of ionic covalent-organic-framework membranes in response to charge variations (open access)

Anomalous thermo-osmotic conversion performance of ionic covalent-organic-framework membranes in response to charge variations

Authors of the article systematically investigated how the membrane charge populations affect permselectivity by decoupling their effects from the impact of the pore structure using a multivariate strategy for constructing covalent-organic-framework membranes. The complex interplay between pore-pore interactions in response to charge variations for ion transport across the upscaled nanoporous membranes helps explain the obtained results. This study has far-reaching implications for the rational design of ionic membranes to augment energy extraction rather than intuitively focusing on achieving high densities.
Date: June 13, 2022
Creator: Xian, Weipeng; Zuo, Xiuhui; Zhu, Changjia; Guo, Qing; Meng, Qing-Wei; Zhu, Xincheng et al.
Object Type: Article
System: The UNT Digital Library