Results 191 to 200 of about 58,083 (262)

Attractive Ni…O Interactions Enable Non‐Alternating Ethylene‐Carbon Monoxide Copolymerization

Angewandte Chemie, EarlyView.
Attractive Ni···O interactions are established in phosphine‐imidated and phosphine‐phenolate nickel catalysts, enabling non‐alternating ethylene‐carbon monoxide copolymerization, resulting in superior CO tolerance, productivity and stability compared to the state‐of‐the‐art benchmark.
Yajun Zhao, Michele Tomasini, Inigo Göttker‐Schnetmann, Laura Falivene, Lucia Caporaso, Stefan Mecking   +5 more
wiley   +1 more source

Research on optimized multi-exposure image fusion method for improving information entropy in high-brightness region: Based on developing grayscale feature weight matrix. [PDF]

PLoS One
Qu D, Lin Y.
europepmc   +1 more source

Copper(II/III) Redox Couple Enables C─H Methylation via a Radical Mechanism Analogous to SAM Enzymes

Angewandte Chemie, EarlyView.
Biological C–H methylation proceeds through radical pathways mediated by one‐electron redox cofactors, yet no synthetic model has reproduced this reactivity. Here, we report the first isolable Cu(II/III)–methyl complexes that mediate C–H methylation through hydrogen atom transfer and methyl radical rebound.
Emily N. Doss, Curtis E. Moore, Shiyu Zhang   +2 more
wiley   +1 more source

Editorial: Advancing AI-driven code generation and synthesis: challenges, metrics, and ethical implications. [PDF]

Front Artif Intell
Sehra SK, Sehra SS, Allison DS, Singh J.
europepmc   +1 more source

An NHC‐Coordinated Silicon/Sulfur Analogue of an Acyl Carbene

Angewandte Chemie, EarlyView.
An NHC complex of an Si/S analogue of an acyl carbene is synthesized by the reaction of a disilyne with a cyclic thiourea. The observed Si2S three‐membered ring with unsymmetrical Si─S distances and a Si─Si single bond is consistent with intramolecular coordination of the silathioacyl sulfur to the silylene center.
Takuto Toyooka, Shintaro Ishida, Takeaki Iwamoto   +2 more
wiley   +1 more source

Nutritional paradoxes of the new Dietary Guidelines for Americans (2025-2030): a critical analysis. [PDF]

J Bras Nefrol
Avesani CM, Cuppari L.
europepmc   +1 more source

T‐Shaped Stibenium(III) Cation: Hydrostibination Without Sb─H Bond

Angewandte Chemie, EarlyView.
A cationic, structurally constrained stibenium platform mediates anti‐Markovnikov hydrostibination of alkenes via element–ligand cooperativity (ELC), thereby bypassing the need for weak Sb─H bonds. ABSTRACT The hydrostibination of alkenes represents a largely underdeveloped transformation, owing to the intrinsic lability of the required Sb─H reagents ...
Ekta Nag, Lars Ole Busse, Andreas Albers, Manuel Schmitt, Lutz Greb   +4 more
wiley   +1 more source

Eating in the upside down: a critical look at the new U.S. dietary guidelines from a mediterranean perspective. [PDF]

Eat Weight Disord
Del Rio D.
europepmc   +1 more source

Unraveling Terminal Cobalt–Antimony Double Bond: Breaking New Ground in Heavy Pnictogen Multiple Bonds

Angewandte Chemie, EarlyView.
N‐heterocyclic carbenes (NHCs) function as “molecular scissors,” cleaving otherwise inert Sb═Sb bonds in distibenes to generate monomeric, zwitterionic stibinide species. These intermediates act as efficient stibinidene transfer reagents, granting access to a rare terminal cobalt–stibinidene complex.
Daniel Meleschko, Prasenjit Palui, Rosa M. Gomilia, Morgan J. McKee, Gregor Schnakenburg, Nikolay Kornienko, Antonio Frontera, Alessandro Bismuto   +7 more
wiley   +1 more source

Lightweight Semantic-Guided FCOS for In-Line Micro-Defect Inspection in Semiconductor Manufacturing. [PDF]

Micromachines (Basel)
Zhang T, Yan S, Qin G.
europepmc   +1 more source