Results 141 to 150 of about 51,216 (341)

Low-gravity sloshing in rectangular tanks [PDF]

open access: yes
Low-gravity sloshing in rectangular ...
Dodge, F. T., Garza, L. R.
core   +1 more source

Analyzing the N–H+…π interactions of protonated tryptophan and phenylalkylamines using QTAIM, NCI, and NBO

open access: green, 2020
André F. Rodrigues‐Oliveira   +3 more
openalex   +1 more source

On the Nature of Improper Hydrogen Bonding in RCH2F and RCHF2 Motifs

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
The nature of ‘improper’ hydrogen bonds is explored in FnC─H⋯X systems, such as RCF2H interaction with chloride and water. It is noted that increased fluorination decreases the positive charge density on H but increases it on C, thus these interactions are dominated by electrostatic attraction to C over H.
Bruno A. Piscelli   +3 more
wiley   +2 more sources

The Marriage of Metal Nanoclusters With Reticular Frameworks: Synthetic Strategies and Biomedical Applications

open access: yesAggregate, Volume 7, Issue 2, February 2026.
The integration of metal nanoclusters (MNCs) with reticular frameworks (RFs) has recently emerged as a powerful strategy to create composite materials with enhanced and synergistic functionalities. This review provides an overview of the synthetic strategies developed for constructing MNCs/RFs composites and their recent advances in biomedical ...
Wenfeng Liu   +3 more
wiley   +1 more source

Myths and Truths About Electrophilic Aromatic Substitution: The Particular Case of Fluorobenzene

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 2, February 2026.
Nitration σ‐complex formation is exothermic, and halogens—particularly fluorine—enhance para reactivity, challenging traditional descriptions of halogens as purely deactivating in EAS. ABSTRACT Electrophilic aromatic substitution (EAS) is a fundamental reaction introduced early in organic chemistry courses, highlighting the influence of substituents on
Francisco A. Martins   +1 more
wiley   +1 more source

Understanding β-Hydride Eliminations from Heteroatom Functional Groups [PDF]

open access: yes, 2011
Using density functional theory, we investigated detailed aspects of the quintessential organometallic process, β-hydride elimination (BHE). In general, we find that most BHE processes from alkyl functional group β-atoms are facile, while BHE processes ...
Goddard, William A. III   +1 more
core   +1 more source

Direct C─H Lactonization of Carboxylic Acids Enabled by LMCT Photoactivation

open access: yesAngewandte Chemie, Volume 138, Issue 1, 2 January 2026.
We report a photochemical method for oxidative γ‐C─H lactonization of simple carboxylic acid substrates upon LMCT photoactivation. Intriguingly, these conditions suppress the rapid decarboxylation characteristic of oxidized carboxylates, suggesting the intermediacy of metal‐stabilized acyloxy radical instead of the dissociative process typically ...
Kathryn M. Weber   +6 more
wiley   +2 more sources

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