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Electron Transfer Mediated by Iron Carbonyl Clusters Enhance Light-Driven Hydrogen Evolution in Water by Quantum Dots (open access)

Electron Transfer Mediated by Iron Carbonyl Clusters Enhance Light-Driven Hydrogen Evolution in Water by Quantum Dots

This article tests an assembly consisting of CdSe quantum dots and [Fe₃Te₂(CO)₉] as a catalytic system for proton reduction in aqueous solution.
Date: March 9, 2020
Creator: Richmond, Michael G.; Li, Chuanshuai; Rahaman, Ahibur; Lin, Weihua; Mourad, Hassan; Meng, Jie et al.
Object Type: Article
System: The UNT Digital Library
A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption (open access)

A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption

Article presenting a novel window-space-directed assembly strategy for the synthesis of zeolitic mesoporous MOFs with ultramicroporous apertures based on supertetrahedral building units. This article provides an effective and innovative strategy and paves the way for the future design and synthesis of functional, highly connected materials for various applications.
Date: March 5, 2021
Creator: Zhang, Lei; Li, Fangfang; You, Jianjun; Hua, Nengbin; Wang, Qianting; Si, Junhui et al.
Object Type: Article
System: The UNT Digital Library
Anion-enhanced excited state charge separation in a spiro-locked N-heterocycle-fused push-pull zinc porphyrin (open access)

Anion-enhanced excited state charge separation in a spiro-locked N-heterocycle-fused push-pull zinc porphyrin

This article presents a new type of push–pull charge transfer complex, viz., a spiro-locked N-heterocycle-fused zinc porphyrin, ZnP-SQ, that is shown to undergo excited state charge separation, which is enhanced by axial F⁻ binding to the Zn center. Spectroelectrochemical studies are used to identify the spectra of charge separated states and charge separation upon photoexcitation of ZnP is established.
Date: February 24, 2021
Creator: Chahal, Mandeep K.; Liyanage, Anudradha; Alsaleh, Ajyal Z.; Karr, P. A.; Hill, Jonathan P. & D'Souza, Francis
Object Type: Article
System: The UNT Digital Library
Charge stabilization via electron exchange: excited charge separation in symmetric, central triphenylamine derived, dimethylaminophenyl–tetracyanobutadiene donor–acceptor conjugates (open access)

Charge stabilization via electron exchange: excited charge separation in symmetric, central triphenylamine derived, dimethylaminophenyl–tetracyanobutadiene donor–acceptor conjugates

This article hypothesizes and demonstrates a new mechanism to stabilize the charge separated states via the process of electron exchange among the different acceptor entities in multimodular donor–acceptor conjugates. This work constitutes the first example of stabilizing charge-separated states via the process of electron exchange.
Date: November 13, 2020
Creator: Yadav, Indresh S.; Alsaleh, Ajyal Z.; Misra, Rajneesh & D'Souza, Francis
Object Type: Article
System: The UNT Digital Library
Aggregation-induced phosphorescence sensitization in two heptanuclear and decanuclear gold–silver sandwich clusters (open access)

Aggregation-induced phosphorescence sensitization in two heptanuclear and decanuclear gold–silver sandwich clusters

This article obtains two few-atom heterometallic gold–silver hepta-/decanuclear clusters, denoted Au₆Ag and Au₉Ag, and determines their structures by X-ray diffraction and mass spectrometry.
Date: October 30, 2020
Creator: Lu, Zhou; Yang, Yu-Jie; Ni, Wen-Xiu; Li, Mian; Zhao, Yifang; Huang, Yong-Liang et al.
Object Type: Article
System: The UNT Digital Library
Towards large scale hybrid QM/MM dynamics of complex systems with advanced point dipole polarizable embeddings (open access)

Towards large scale hybrid QM/MM dynamics of complex systems with advanced point dipole polarizable embeddings

Article presents a general route to hybrid Quantum Mechanics/Molecular Mechanics (QM/MM) Molecular Dynamics for complex systems using a polarizable embedding.
Date: June 11, 2019
Creator: Loco, Daniele; Lagardère, Louis; Cisneros, Gerardo Andrés; Scalmani, Giovanni; Frisch, Michael; Lipparini, Filippo et al.
Object Type: Article
System: The UNT Digital Library
Au3-to-Ag3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength (open access)

Au3-to-Ag3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength

Article describes an efficient strategy for designing charge-transfer complexes using coinage metal cyclic trinuclear complexes (CTCs).
Date: September 11, 2020
Creator: Lu, Zhou; Chilukuri, Bhaskar; Yang, Chi; Rawashdeh, Abdel-Monem M.; Arvapally, Ravi K.; Tekarli, Sammer M. et al.
Object Type: Article
System: The UNT Digital Library
Cysne et al. Reply (open access)

Cysne et al. Reply

This article is a response to a comment on the authors' original article "Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides." The authors' response concludes that they do not believe the main points of the original Letter are affected by the Comment.
Date: October 1, 2021
Creator: Cysne, Tarik P.; Costa, Marcio; Canonico, Luis M.; Buongiorno Nardelli, Marco; Muniz, R. B. & Rappoport, Tatiana G.
Object Type: Article
System: The UNT Digital Library
Efficient oral insulin delivery enabled by transferrin-coated acid-resistant metal-organic framework nanoparticles (open access)

Efficient oral insulin delivery enabled by transferrin-coated acid-resistant metal-organic framework nanoparticles

Article uses acid-resistant metal-organic framework nanoparticles (UiO-68-NH2) to encapsulate sufficient insulin and decorated the exterior with targeting proteins (transferrin) to realize highly efficient oral insulin delivery.
Date: September 20, 2021
Creator: Zou, Jun-Jie; Wei, Gaohui; Xiong, Chuxiao; Yu, Yunhao; Li, Sihui; Hu, Liefeng et al.
Object Type: Article
System: The UNT Digital Library
Unusual Properties of Hydrogen-Bonded Ferroelectrics: The Case of Cobalt Formate (open access)

Unusual Properties of Hydrogen-Bonded Ferroelectrics: The Case of Cobalt Formate

Article using first-principles simulations to predict room temperature ferroelectricity in a representative of the formate family, [NH₂NH₃][Co(HCOO)₃].
Date: February 18, 2022
Creator: Ghosh, P. S.; DeTellem, D.; Ren, J.; Witanachchi, S.; Ma, Shengqian; Lisenkov, S. et al.
Object Type: Article
System: The UNT Digital Library
Gas-Phase Chemistry of 1,1,2,3,3,4,4-Heptafluorobut-1-ene Initiated by Chlorine Atoms (open access)

Gas-Phase Chemistry of 1,1,2,3,3,4,4-Heptafluorobut-1-ene Initiated by Chlorine Atoms

This article uses the relative rate method to determine the rate constant for the reaction of heptafluorobut-1-ene (CF₂=CFCF₂CF₂H) with chlorine atoms in air.
Date: December 29, 2021
Creator: Sapkota, Ramesh & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
Installation of synergistic binding sites onto porous organic polymers for efficient removal of perfluorooctanoic acid (open access)

Installation of synergistic binding sites onto porous organic polymers for efficient removal of perfluorooctanoic acid

Article reports a strategy to construct highly efficient perfluorooctanoic acid (PFOA) adsorbents by installing synergistic electrostatic/hydrophobic sites onto porous organic polymers (POPs).
Date: April 19, 2022
Creator: Liu, Xiongli; Zhu, Changjia; Yin, Jun; Li, Jixin; Zhang, Zhiyuan; Li, Jinli et al.
Object Type: Article
System: The UNT Digital Library
Experimental and Computational Studies of the Kinetics of the Reaction of Hydrogen Atoms with Carbon Disulfide (open access)

Experimental and Computational Studies of the Kinetics of the Reaction of Hydrogen Atoms with Carbon Disulfide

Article discussing an investigation of the reaction of H + CS₂ products. The reaction was found to be pressure dependent and in the fall-off region or near the low pressure limit. Transition state theory yields an estimate for the high-pressure limit of addition over 290–300 K of 1.3 × 10−9 exp( −7.2 kJ mol −1 /RT) cm3 molecule −1 s −1. Uncertainties are discussed in the text.
Date: July 7, 2018
Creator: Kerr, Katherine E.; Gao, Yide & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
Further Analysis on Solubility Measurement and Thermodynamic  Modeling of Benzoic Acid in Monosolvents and Binary Mixtures (open access)

Further Analysis on Solubility Measurement and Thermodynamic Modeling of Benzoic Acid in Monosolvents and Binary Mixtures

Article discussing further analyses of the recent report (by Sandeepa et al.) on the solubility of benzoic acid in six monosolvents (i.e. tributyl phosphate, diacetone alcohol, methyl-n-propyl ketone, methyl acetate, amyl acetate, and isooctane) and five binary systems (i.e. ethanol + hexane, isopropyl alcohol + hexane and chloroform + hexane, acetone + hexane, and acetone + water) along with some numerical analyses. The reported calculations have been reanalyzed based on combined nearly ideal binary solvent/Redlich-Kister, the modified Wilson model, general single model, Jouyban–Acree model and Jouyban–Acree–van’t Hoff model. The investigated models provide good estimation of the solubility behavior of benzoic acid in the binary solvent mixtures at various temperatures.
Date: June 30, 2019
Creator: Jouyban, Abolghasem; Rahimpour, Elaheh & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Comments on “What if Cocrystallization Fails for Neutral Molecules? Screening Offered Eutectics as Alternate Pharmaceutical Materials: Leflunomide-A Case Study” (open access)

Comments on “What if Cocrystallization Fails for Neutral Molecules? Screening Offered Eutectics as Alternate Pharmaceutical Materials: Leflunomide-A Case Study”

Features commentary on the previously published article "What if Cocrystallization Fails for Neutral Molecules? Screening Offered Eutectics as Alternate Pharmaceutical Materials: Leflunomide-A Case Study”
Date: December 2019
Creator: Acree, William E. (William Eugene) & Jouyban, Abolghasem
Object Type: Article
System: The UNT Digital Library
Apparent Specific Volumes of Sucrose in Different Aqueous Cosolvent Mixtures at 298.2 K (open access)

Apparent Specific Volumes of Sucrose in Different Aqueous Cosolvent Mixtures at 298.2 K

This article explores research to determine the apparent specific volume of sucrose by measuring the density of sucrose in {cosolvent + water} mixtures at 298.2 K. The study finds that a mean apparent specific volume value of 0.632 cm³.g⁻¹ for sucrose in different aqueous-cosolvent mixtures could be adequate for practical purposes in pharmaceutical industries.
Date: December 30, 2018
Creator: Tinjacá, Darío; Muñoz, María M.; Martínez, Fleming; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
The genome of jojoba (Simmondsia chinensis): A taxonomically isolated species that directs wax ester accumulation in its seeds (open access)

The genome of jojoba (Simmondsia chinensis): A taxonomically isolated species that directs wax ester accumulation in its seeds

Article describes the high-quality, 887-Mb genome of jojoba assembled into 26 chromosomes with 23,490 protein-coding genes.
Date: March 11, 2020
Creator: Sturtevant, Drew; Lu, Shaoping; Zhou, Zhi-Wei; Shen, Yin; Wang, Shuo; Song, Jia-Ming et al.
Object Type: Article
System: The UNT Digital Library
Functional Porous Organic Polymers as Advanced Decontamination Materials for Water Purification (open access)

Functional Porous Organic Polymers as Advanced Decontamination Materials for Water Purification

Data management plan for the grant "Functional Porous Organic Polymers as Advanced Decontamination Materials for Water Purification." This project seeks to develop and deploy a new class of porous organic polymers which have high capacity and selectivity to rapidly remove heavy metal contaminants well below parts per million level standards set by the Environmental Protection Agency. The project will engineer porosity and surface chemistry of porous organic polymers to clean inorganic heavy metal contaminants from both surface water and wastewater. Porous organic polymers are robust, chemically and thermally stable, scalable, and modular, with very high surface area. The modularity of these polymers allows for a molecular-level tuning of the pore structure and surface chemistry that allows for engineered site-specificity of binding sites that target the heavy metal contaminants. Recent data shows these new materials offer a significant increase in capacity relative to benchmark materials, with a rapid removal of mercury and other heavy metal ions. This project will advance the concept by exploring rational design of these porous polymers with different topologies by customizing the monomer with various binding groups. The objectives of the project include design, synthesis, and characterization, followed by assessment of these materials to remove inorganic contaminants …
Date: 2021-02-01/2021-07-31
Creator: Ma, Shengqian
Object Type: Text
System: The UNT Digital Library
Accelerated reliability testing of Cu-Al bimetallic contact by a micropattern corrosion testing platform for wire bond device application (open access)

Accelerated reliability testing of Cu-Al bimetallic contact by a micropattern corrosion testing platform for wire bond device application

This article presents a novel method of in-situ investigation of the device corrosion process to capture the real time mechanistic information not obtained in standard reliability testing.
Date: March 26, 2021
Creator: Ashok Kumar, Goutham Isaac; Alptekin, John; Caperton, Joshua; Salunke, Ashish & Chyan, Oliver Ming-Ren
Object Type: Article
System: The UNT Digital Library
Proton reduction by phosphinidene-capped triiron clusters (open access)

Proton reduction by phosphinidene-capped triiron clusters

This article prepares and examines Bis(phosphinidene)-capped triiron carbonyl clusters, including electron rich derivatives formed by substitution with chelating diphosphines as proton reduction catalysts.
Date: April 20, 2021
Creator: Rahaman, Ahibur; Lisensky, George C.; Haukka, Matti; Tocher, Derek A.; Richmond, Michael G.; Colbran, Stephen B. et al.
Object Type: Article
System: The UNT Digital Library
MRI: Acquisition of a High Performance Hybrid Computer Cluster for Computational Modeling (open access)

MRI: Acquisition of a High Performance Hybrid Computer Cluster for Computational Modeling

Data management plan for the grant, "MRI: Acquisition of a High Performance Hybrid Computer Cluster for Computational Modeling." Research grant for the purchase, installation, and operation of a new high-performance computing (HPC) resource, called CRUNTCH4, to be deployed at the University of North Texas’ (UNT) Center for Advanced Scientific Computing and Modeling (CASCaM). This much needed HPC resource combines different computing architectures and significant amounts of data storage, all connected via a high-speed communications fabric. This computing resource will provide the means for CASCaM investigators to continue research on a broad range of topics including quantum chemistry, materials design, biomolecular simulations, machine-learning based chemical discovery, and bioinformatics, among others.
Date: 2021-10-01/2024-09-30
Creator: Cundari, Thomas R., 1964-; Du, Jincheng; Andreussi, Oliviero & Yan, Hao
Object Type: Text
System: The UNT Digital Library
Rational design of bifunctional conjugated microporous polymers (open access)

Rational design of bifunctional conjugated microporous polymers

This article is a review discussing the rational design and synthesis of bifunctional conjugated microporous polymers (CMPs), summarizes their advanced applications, and concludes with the authors' perspectives on the research prospects of these materials.
Date: July 22, 2021
Creator: Song, Yanpei; Lan, Pui Ching; Martin, Kyle & Ma, Shengqian
Object Type: Article
System: The UNT Digital Library
Analysis of the Fe 2p XPS for hematite 𝛂 Fe2O3: Consequences of covalent bonding and orbital splittings on multiplet splittings (open access)

Analysis of the Fe 2p XPS for hematite 𝛂 Fe2O3: Consequences of covalent bonding and orbital splittings on multiplet splittings

Article analyzes the origins of the complex Fe 2p X-Ray Photoelectron Spectra (XPS) of hematite (α-Fe₂O₃) and is related to the character of the bonding in this compound. This analysis provides a new and novel view of the reasons for XPS binding energies (BEs) and BE shifts, which deepens the current understanding and interpretation of the physical and chemical significance of the XPS. This article is part of the JCP Special Topic on Oxide Chemistry and Catalysis.
Date: January 2, 2020
Creator: Bagus, Paul S.; Nelin, Connie J.; Brundle, C. R.; Lahiri, N.; Ilton, Eugene S. & Rosso, Kevin M.
Object Type: Article
System: The UNT Digital Library
Sc3N@Ih-C80 based donor–acceptor conjugate: role of thiophene spacer in promoting ultrafast excited state charge separation (open access)

Sc3N@Ih-C80 based donor–acceptor conjugate: role of thiophene spacer in promoting ultrafast excited state charge separation

Article reports light induced charge separation in a newly synthesized triphenylamine–thiophene-Sc₃N@Iₕ-C₈₀ donor–acceptor conjugate and its C₆₀ analog, triphenylamine–thiophene-C₆₀ conjugate, and the significance of the thiophene spacer in promoting electron transfer events.
Date: May 27, 2020
Creator: Gobeze, Habtom B.; D'Souza, Francis; Caballero, Rubén; Servián, Luis David; Fernandez-Delgado, Olivia; Echegoyen, Luis et al.
Object Type: Article
System: The UNT Digital Library