Results 101 to 110 of about 363,660 (280)

Determination of the Ionization Constants of Some Benzoyl Thiourea Derivatives in Dioxane-Water Mixture

open access: yesJournal of Chemistry, 2013
The stoichiometric ionization constants of N,N-dialkyl-N′-(4-substituted benzoyl) thiourea (Substitutes: H, Cl, and Br; alkyl groups: ethyl, n-propyl, n-butyl, and phenyl) derivatives have been determined potentiometrically in dioxane-water (v:v, 50:50 ...
Gun Binzet   +4 more
doaj   +1 more source

Molecular Electrocatalysis Coupled With a Palladium Membrane Reactor Affords Selective Nitrogen Reduction

open access: yesAdvanced Science, EarlyView.
A palladium membrane reactor delivers active hydrogen to homogeneous nickel terpyridine catalysts, which then selectively hydrogenate dinitrogen to ammonia. ABSTRACT Ammonia production is a cornerstone of modern industry and society, yet the conventional Haber–Bosch process accounts for nearly 2% of the global CO2 emissions. A promising and potentially
Morgan McKee   +11 more
wiley   +1 more source

Molecular Rectification: Mechanisms, Modulation Strategies, and Device Realization

open access: yesAdvanced Science, EarlyView.
This review focuses on molecular rectification, from its fundamental mechanisms and modulation strategies to device realization. It summarizes the theoretical framework, modulation strategies, fabrication techniques, characterization methods, and modeling and simulation of molecular rectifiers, while discussing challenges and future directions for ...
Junnan Guo   +8 more
wiley   +1 more source

Atomic Charges from Machine-Learned Charge Densities: Consistency and Substituent Effects

open access: yesChemistry
Atomic charges are widely used to analyze molecular electronic structure and substituent effects, yet their numerical values and interpretations are inherently dependent on the adopted density partitioning scheme.
Xuejian Qin, Taoyuze Lv
doaj   +1 more source

Architecting Anisotropic Force‐Responsive Bidirectional High‐Contrast Three‐Color Fluorescence Switches via Effective Molecular Modulation for High‐Security Information Storage

open access: yesAdvanced Science, EarlyView.
Synergistically integrating substituent variation and positional isomerism in molecular engineering affords 13 rare tricolored mechanofluorochromic luminogens, and 3 exceedingly scarce force‐triggered bidirectional high‐contrast three‐color fluorescence switches are screened out via a three‐step protocol.
Yijie Zou   +7 more
wiley   +1 more source

A Fluorogenic Cysteine‐Tetrapeptide Tagging Strategy for Nonperturbative Protein Labeling and Protein–Ligand Interaction Tracking

open access: yesAdvanced Science, EarlyView.
A compact Phe‐Cys‐Pro‐Phe (FCPF) tag and an environment‐sensitive SBD‐Cl‐derived probe form a sequence‐selective fluorogenic pair for wash‐free live‐cell protein imaging. This minimally perturbing chemistry allows flexible insertion at termini or loops, produces strong fluorescence upon local microenvironment confinement, supports FRET‐assisted ...
Xiao Wang   +11 more
wiley   +1 more source

Phosphonium Ionic Liquids for Electrochemical Energy Storage: Structure–Property–Interphase Relationships and Design Rule

open access: yesAdvanced Science, EarlyView.
Phosphonium ionic liquids offer a versatile platform for safer and more durable energy storage. This Review connects cation–anion structure with solvation, ion transport, electrochemical stability, and interphase formation across diverse battery chemistries.
Amir Haghipour   +7 more
wiley   +1 more source

The SN Mechanism in aromatic compounds. 25. Substituent effects of multiple-bond nitrogen.

open access: yes, 1958
The substituent effects in aromatic nucleophilic substitution of groups attached to the benzene ring by a multiple-bond nitrogen atom are considered.
AJ Parker, J Miller
core   +1 more source

Comparative Evaluation of Chelator‐Conjugated Peptides for Lead‐Labeled SSTR2‐Targeted Theranostics: Integrated Computational Modeling and Preclinical Validation

open access: yesAdvanced Science, EarlyView.
The study integrates density functional theory with radiochemical and biological validation to compare DOTA‐, PSC‐, and DOTAM‐based chelator‐conjugates for 203Pb/212Pb theranostic applications. Distinct differences in metal coordination, electrostatic properties, conformational flexibility, cellular uptake, biodistribution, and dosimetry are identified
Jeongyun Kim   +12 more
wiley   +1 more source

Methanol‐Regulated Interfacial Polymerization of Fluorinated Polyamide Membranes Enables Rapid Liquid Hydrocarbon Separation

open access: yesAdvanced Science, EarlyView.
Through methanol‐regulated interfacial polymerization (IP), bulky trifluoromethyl (‐CF3) groups are successfully integrated into polyamide networks. Unlike conventional membranes that suffer from severe solvent‐induced swelling, the fluorinated network sterically resists structural expansion.
Xingxiang Li   +9 more
wiley   +1 more source

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