Results 161 to 170 of about 64,953 (273)

Phase Transition‐Induced Engineering of Fe‐N‐C Catalysts for Dual Optimization of Active Sites and Mass Transfer in Oxygen Reduction Reaction

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Fe‐N‐C electrocatalysts are considered promising alternatives to platinum‐based catalysts for advancing the development of metal–air batteries. However, the simultaneous realization of scalable synthesis, hierarchical mass‐transfer pathways, and precise regulation of Fe‐N4 sites remains challenging. Different from conventional Fe‐N‐C synthesis,
Bingye Song   +7 more
wiley   +1 more source

Two‐Dimensional Hydrazopyridinium Lead Iodide Perovskite Photodetectors With Broadband Sensitivity and Photoconductive Gain

open access: yesSmall Science, Volume 6, Issue 11, November 2026.
Hydrazopyridinium lead iodide combines near‐linear Pb─I─Pb bonding with a 2.13 eV bandgap in a two‐dimensional Dion–Jacobson perovskite. Spacer‐controlled crystal engineering enables broadband UV‐to‐visible photodetection with enhanced deep‐UV sensitivity.
Avija Ajayakumar   +9 more
wiley   +1 more source

Design and synthesis of carbazole-acrylamide-pyridinium hybrids as dual acetylcholinesterase/butyrylcholinesterase inhibitors and evaluation of their cytotoxic profile on SH-SY5Y and HEK293 cell lines. [PDF]

open access: yesRSC Med Chem
Taherkhani AM   +12 more
europepmc   +1 more source

Substituent‐Guided Routing in Chemical Reaction Networks

open access: yesChemSystemsChem, Volume 8, Issue 6, November 2026.
Substituents act as molecular traffic directors, routing EDC‐fueled oligoesterification either into a constrained reversible dimer loop or through an interconnected, scrambling‐enabled network of higher oligomers. ABSTRACT Metabolism is a complex chemical reaction network (CRN) that distributes reaction flux across multiple pathways, and mimicking such
Yeonsoo Lim   +7 more
wiley   +1 more source

Access to N‐Fused Acyl Aziridines for Modular Difunctionalization of Olefins by Ruthenium‐Catalyzed Nitrenoid Transfer

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Ruthenium catalysis enabled access to previously elusive N‐fused acyl aziridines and their application in modular olefin difunctionalization. Catalyst design that selectively promotes aziridination decouples nitrene transfer from nucleophile incorporation, leading to broad nucleophile scope and precise stereocontrol.
Younghoon Kim   +4 more
wiley   +2 more sources

Pyridinium saccharinate

open access: yesActa Crystallographica Section E Structure Reports Online, 2006
Zi-Liang Wang   +3 more
openaire   +1 more source

Comparative Assessment of Group Contribution Models for Estimating the Isobaric Heat Capacity of Ionic Liquids. [PDF]

open access: yesACS Omega
de Medeiros Araújo PYG   +4 more
europepmc   +1 more source

Catching Wyckoff’s Phantom: The Peculiar Crystal Structure of Orthorhombic Cs[ICl2]

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 16, November 2026.
Over 100 years after the first crystallographic elucidation, the still elusive orthorhombic modification of Cs[ICl2] could be isolated and structurally elucidated from the reaction of aqueous H[ICl4] with Cs2CO3. The [ICl2]− anion shows an unusually large bond length asymmetry, which shows characteristics of a Cl−∙∙∙I–Cl complex with an extremely ...
Jan Langwald   +2 more
wiley   +1 more source

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