Results 51 to 60 of about 13,617,516 (263)
Angewandte Chemie, EarlyView.A new type of Si─Me bond activation enabling catalytic alkyl exchange at Si was developed. It involves a P‐directing group and Pd─Lewis acid cooperation. It enables the conversion of Me3SiCl into silanols with three different organic substituents. ABSTRACT A novel mode of Si─Me bond activation has been unveiled through the cooperative action of a P ...
Hajime Kameo +5 more
wiley +2 more sources
Anionic N-heterocyclic carbenes by decarboxylation of sydnone-4-carboxylates [PDF]
, 2018 Unstable N-heterocyclic carbenes can be masked and stabilized as pseudo-cross-conjugated hetarenium-carboxylates which decarboxylate on warming. This study deals with the decarboxylation of carboxylates of mesoionic compounds to generate anionic N ...
Andreas Schmidt +20 more
core +1 more source
Isomeric Ag14 Nanoclusters With Distinct Photophysical and Nanomechanical Properties
Advanced Science, EarlyView.Ligand‐shell isomerism in atomically precise Ag14 nanoclusters is demonstrated to regulate core distortion, photoluminescence, and mechanical properties. Subtle changes in phosphine ligand arrangement drive a pronounced emission shift from green to red and alter crystal rigidity, revealing a direct structure‐property correlation that offers new design ...
Vivek Yadav +14 more
wiley +1 more source
Angewandte Chemie, EarlyView.Catalyst‐controlled nitrene transfer unlocks divergent reactivity of bicyclo[1.1.0]butanes. Rhodium catalysis promotes selective strain‐release amination to access cyclobutene and cyclobutane amino‐acid scaffolds, whereas visible‐light photocatalysis redirects nitrene reactivity toward double amination and skeletal remodeling, providing a complementary
Aksar Ali +5 more
wiley +2 more sources
Heteroatom Chemistry, 2019 The X-ray crystal structures of three N-heterocyclic germylenes (NHGes) have been elucidated including the previously unknown 1,3-bis(2,6-dimethylphenyl)diazagermol-2-ylidene (1).
Christopher A. Dodds +2 more
doaj +1 more source
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Photoswitchable Ambiphilicity: Light‐Gated Frustrated Lewis Pair Reactivity and Z‐Type Interaction
Angewandte Chemie, EarlyView.Light‐controlled ambiphilicity is realized in photoswitchable intramolecular phosphorus/boron Lewis pairs. Reversible switching modulates both the thermodynamics and kinetics of frustrated Lewis‐pair reactivity, enabling light‐gated CO2 binding and release.
Lennart Stoess +3 more
wiley +2 more sources
Self-Supported N-Heterocyclic Carbenes and Their Use as Organocatalysts
Molecules, 2016 The study of N-heterocyclic carbenes (NHCs) as organocatalysts has proliferated in recent years, and they have been found to be useful in a variety of reactions.
Shuang Ma, Patrick H. Toy
doaj +1 more source
Bis(dialkylamino)carbenes: Acyclic Analogues of N-heterocyclic Carbenes [PDF]
, 2007 Acyclische Bis(dialkylamino)carbene, die durch Deprotonierung von N,N,N,N-Tetraalkylformamidiniumsalzen erzeugt werden können, ähneln rein formal den N-heterocyclischen Carbenen.
Denk, Karin
core
Advanced Science, EarlyView.A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He +8 more
wiley +1 more source