Search Results

Ammonia Oxidation at High Pressure and Intermediate Temperatures
This article describes ammonia oxidation experiments conducted at high pressure (30 bar and 100 bar) under oxidizing and stoichiometric conditions, respectively, and temperatures ranging from 450 to 925 K.
Analysis of immobilized artificial membrane retention factors for both neutral and ionic species
Article on the analysis of immobilized artificial membrane retention factors for both neutral and ionic species.
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.
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.
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.
The anti-apoptotic proteins NAF-1 and iASPP interact to drive apoptosis in cancer cells
This article reveals an interaction between the two anti-apoptotic proteins iASPP and NAF-1, which are overexpressed in many types of cancer cells and tumors.
The Antropoff Periodic Table found at UC Berkeley
Article discussing the Andreas von Antropoff Periodic Table found at the University of California at Berkeley.
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.
Application of a General Computer Algorithm Based on the Group-Additivity Method for the Calculation of Two Molecular Descriptors at Both Ends of Dilution: Liquid Viscosity and Activity Coefficient in Water at Infinite Dilution
This paper presents the application of a commonly used computer algorithm based on the group-additivity method for the calculation of the liquid viscosity coefficient at 293.15 K and the activity coefficient at infinite dilution in water at 298.15 K or organic molecules.
Application of the Correlation Consistent Composite Approach (ccCA) to Third-Row (Ga-Kr) Molecules
Article on the application of the correlation consistent composite approach (ccCA) to third-row (Ga-Kr) molecules.
Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction
Article describes a study where various normalization techniques were investigated in order to improve the quantitative capabilities of direct analyte probed nanoextraction (DAPNe).
Applications of Hydrogen Gas Getters in Mass Spectrometry
Patent relating to applications of hydrogen gas getters in mass spectrometry.
Aromatic C-H Activation and Catalytic Hydrophenylation of Ethylene by TpRu{P(OCH2)3CEt} (NCMe)Ph
Article discussing aromatic C-H activation and catalytic hydrophenylation of ethylene by TpRu{P(OCH2)3CEt} (NCMe)Ph.
Arylpalladium Phosphonate Complexes as Reactive Intermediates in Phosphorus-Carbon Bond Forming Reactions
Article discussing research on arylpalladium phosphonate complexes as reactive intermediates in phosphorus-carbon bond forming reactions.
ASPARTATE 458 of Human Glutathione Synthetase is Important for Cooperativity and Active Site Structure
Article discussing ASPARTATE 458 of human glutathione synthetase.
Assembling Artificial Photosynthetic Models in Water Using β-Cyclodextrin-Conjugated Phthalocyanines as Building Blocks
Article describes how two water-soluble zinc(II) phthalocyanines substituted with two or four permethylated β-cyclodextrin (β-CD) moieties at the α positions have been utilized as building blocks for the construction of artificial photosynthetic models in water. The hydrophilic and bulky β-CD moieties not only can increase the water solubility of the phthalocyanine core and prevent its stacking in water but can also bind with a tetrasulfonated zinc(II) porphyrin (ZnTPPS) and/or sodium 2-anthraquinonesulfonate (AQ) in water through host–guest interactions.
Asymmetric hydrogenation of an α-unsaturated carboxylic acid catalyzed by intact chiral transition metal carbonyl clusters – diastereomeric control of enantioselectivity
Article presenting research where twenty clusters of the general formula [(μ-H)₂Ru₃(μ₃-S)(CO)₇(μ-P–P*)] (P–P* = chiral diphosphine of the ferrocene-based Walphos or Josiphos families) have been synthesised and characterised.
Atmospheric chemistry of isopropyl formate and tert-butyl formate
Article on the atmospheric chemistry of isopropyl formate and tert-butyl formate.
Atomic layer deposition of BN as a novel capping barrier for B2O3
Article demonstrating in situ deposition of BN by sequential BCl₃/NH₃ reactions at 600 K on two different oxidized boron substrates: (a) B₂O₃ deposited using BCl₃/H₂O ALD on Si at 300 K (“B₂O₃/Si”) and (b) a boron-silicon oxide formed by sequential BCl₃/O₂ reactions at 650 K on SiO₂ followed by annealing to 1000 K (“B-Si-oxide”). The data presented demonstrates that ultrathin BN films deposited by BCl₃/NH₃ ALD are promising candidates for passivation of boron oxide used in shallow doping applications.
Atomic layer deposition of h-BN(0001) multilayers on Ni(111) and chemical vapor deposition of graphene on h-BN(0001)/Ni(111)
Article studying atomic layer deposition. In situ direct, epitaxial growth of multilayers of hexagonal boron nitride (h-BN) and graphene without physical transfer is of significant interest for the scalable production of graphene/h-BN heterostructures for device applications. Deposition on magnetic substrates is of particular interest for spin tunneling applications. X-ray photoelectron spectroscopy and low energy electron diffraction demonstrate epitaxial atomic-layer deposition (ALD) of multilayer h-BN(0001) on Ni(111) and subsequent deposition of azimuthally-aligned multilayer graphene on h-BN(0001)/Ni(111) by chemical vapor deposition. Boron nitride ALD was accomplished with alternating cycles of BCl₃/NH₃ at a 600 K substrate temperature, and subsequent annealing in ultrahigh vacuum. Subsequent deposition of graphene was achieved by chemical vapor deposition using ethylene (CH₂CH₂) at 1000 K.
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).
Bad Pyrmont Spa
Photo depicts the Bad Pyrmont Spa in western Germany which is known for its therapeutic baths and vapor cave. The paragraph on the bottom of page 70 gives details about the photo and the spa.
Band Engineering and Magnetic Doping of Epitaxial Graphene on SiC (0001)
Article on band engineering and magnetic doping of epitaxial graphene on SiC (0001).
Band Structure and Quantum Conductance of Nanostructures from Maximally Localized Wannier Functions: The Case of Functionalized Carbon Nanotubes
Article on band structure and quantum conductance of nanostructures from maximally localized Wannier functions.
Benzo[ghi]perylene versus Pyrene as Solute Probes for Polarity Determination of Liquid Organic Salts Used in Chromatography
Article on benzo[ghi]perylene versus pyrene as solute probes for polarity determination of liquid organic salts used in chromatography.
Beyond platinum: synthesis, characterization, and in vitro toxicity of Cu(II)-releasing polymer nanoparticles for potential use as a drug delivery vector
Article on synthesis, characterization, and in vitro toxicity of Cu(II)-releasing polymer nanoparticles for potential use as a drug delivery vector.
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.
Binder Enhanced Refuse Derived Fuel
Patent relating to refuse derived fuels and more particularly to binder enhanced refuse derived fuel pellets and utilization of such pellets in solid-fuel fired furnaces.
Bioinspired Hydrogenase Models: The Mixed-Valence Triiron Complex [Fe₃(CO)₇(μ-edt)₂] and Phosphine Derivatives [Fe₃(CO)₇−ₓ(PPh₃)ₓ(μ-edt)₂] (x = 1, 2) and [Fe₃(CO)₅(κ²‑diphosphine)(μ- edt)₂] as Proton Reduction Catalysts
This article describes the preparation and structural characterization of the mixed-valence triiron complexes.
Bioinspired Synthesis of Silver Nanoparticles for the Remediation of Toxic Pollutants and Enhanced Antibacterial Activity
Article asserts that this research presents a novel and environmentally friendly approach for the synthesis of multifunctional nanobiocomposites for the efficient removal of toxic heavy metal and dye, as well as the disinfection of wastewater microorganisms. The synthesized bioinspired nanocomposite KAC-CS-AgNPs could be an innovative solution for effective and sustainable wastewater treatment and has great potential for commercial applications.
The Biological and Toxicological Activity of Gases and Vapors
Article discussing research on the biological and toxicological activity of gases and vapors.
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.
Biosynthesis of 6-Hydroxymellein Requires a Collaborating Polyketide Synthase-like Enzyme
This article investigates a new architecture for iterative Type I polyketide synthases (PKS) from fungi.
Bonding and Structure of Copper Nitrenes
Article discussing research on the bonding and structure of copper nitrenes.
Brittle and Ductile Behavior in Carbon Nanotubes
Article discussing research on the response of carbon nanotubes to a tensile load.
Buckminsterfullerene, C₆₀: Improved Synthesis, Electron Microscopy, Electron States, Anions and Related Aspects
This article describes the synthesis and characterization of C₆₀, by means of electron microscopy, electron states, cyclic voltammetry and other techniques.
Bulky Lesion Bypass Requires Dpo4 Binding in Distinct Conformations
Article describes study where researchers used single-molecule florescence resonance energy transfer (smFRET) experiments, classical molecular dynamics simulations, and nucleotide incorporation assays to investigate the mechanism by which the model Y-family polymerase, Dpo4, bypasses a (+)-cis-Benzo[a]pyrene (B[a]P)-N 2-dG adduct in DNA.
The Butterfly Dimer [(tBu3SiO)Cr]2 (μ-OSitBu3)2 and Its Oxidative Cleavage to (tBu3SiO)2 Cr(=N-N=CPh2)2 and (tBu3SiO)2 Cr=N(2,6-Ph2-C6H3)
Article discussing research on the butterfly dimer [(ᵗBu₃SiO)Cr]₂(μ-OSiᵗBu₃)₂ and its oxidative cleavage to (ᵗBu₃SiO)₂Cr(=N-N=CPh₂)₂ and (ᵗBu₃SiO)₂Cr=N(2,6-Ph₂-C₆H₃).
C H Bond Activation of Methane by Ptᴵᴵ N-Heterocyclic Carbene Complexes: The Importance of Having the Ligands in the Right Place at the Right Time
Article discussing C H bond activation of methane by Ptᴵᴵ N-Heterocyclic carbene complexes.
C-H Functionalization Reactivity of a Nickel-Imide
This article discusses C-H functionalization reactivity of a Nickel-Imide.
The C₂H₂ + NO₂ Reaction: Implications for High Pressure Oxidation of C₂H₂/NOx Mixtures
Article discussing an experimental and kinetic modeling study of the interaction between C₂H₂ and NOx under flow reactor conditions in the intermediate temperature range (600–900 K), high pressure (50–60 bar), and for stoichiometries ranging from reducing to strongly oxidizing. The results show that presence of NOx serves both to sensitize and inhibit oxidation of C₂H₂.
Calculation of a Methane C-H Oxidative Addition Trajectory: Comparison to Experiment and Methane Activation by High-Valent Complexes
Article discussing research on the calculation of methane C-H oxidative addition trajectory and a comparison to experiment and methane activation by high-valent complexes.
Calculation of Abraham Model L-Descriptor and Standard Molar Enthalpies of Vaporization for Linear C7-C14 Alkynes From Gas Chromatographic Retention Index Data
Article determines Abraham model L solute descriptors for an additional 33 linear C7-C14 alkynes based on published gas chromatographic retention indices for solutes eluted from capillary columns coated with squalane and apiezon L stationary phases.
Calculation of Five Thermodynamic Molecular Descriptors by Means of a General Computer Algorithm Based on the Group-Additivity Method: Standard Enthalpies of Vaporization, Sublimation and Solvation, and Entropy of Fusion of Ordinary Organic Molecules and Total Phase-Change Entropy of Liquid Crystals
This article presents the calculation of the standard enthalpies of vaporization, sublimation and solvation of organic molecules using a common computer algorithm on the basis of a group-additivity method.
Calculation of the Surface Tension of Ordinary Organic and Ionic Liquids by Means of a Generally Applicable Computer Algorithm Based on the Group-Additivity Method
This article presents the calculation of the surface tension of ordinary organic and ionic liquids, based on a computer algorithm applying a refined group-additivity method.
Calculation of the Vapour Pressure of Organic Molecules by Means of a Group-Additivity Method and Their Resultant Gibbs Free Energy and Entropy of Vaporization at 298.15 K
Article presenting the calculation of the vapour pressure of organic molecules at 298.15 K using a commonly applicable computer algorithm based on the group-additivity method. The standard entropy of vaporization ΔS°vap has been determined and compared with experimental data of 1129 molecules, exhibiting excellent conformance with a correlation coefficient R2 of 0.9598, a standard error σ of 8.14 J/mol/K and a medium absolute deviation of 4.68%.
Calculation of the Viscosity of Binary Liquids at Various Temperatures Using Jouyban-Acree Model
Article discussing the calculation of the viscosity of binary liquids at various temperatures using Jouyban-Acree model.
Calculations of the Relative Energies of the 2B1g and 2A2u States of Cyclobutanetetraone Radical Cation and Radical Anion Provide Further Evidence of a 3B2u Ground State for the Neutral Molecule: A Proposed Experimental Test of the Prediction of a Triplet Ground State for (CO)4
Article on a proposed experimental test of the prediction of a triplet ground state for (CO)4.
Calculations Predict a Large Inverse H/D Kinetic Isotope Effect on the Rate of Tunneling in the Ring Opening of Cyclopropylcarbinyl Radical
Article on calculations predicting a large inverse H/D kinetic isotope effect on the rate of tunneling in the ring opening of cyclopropylcarbinyl radical.
Calculations Predict That Carbon Tunneling Allows the Degenerate Cope Rearrangement of Semibullvalene to Occur Rapidly at Cryogenic Temperatures
Article on calculations predicting that carbon tunneling allows the degenerate cope rearrangement of semibullvalene to occur rapidly at cryogenic temperatures.
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