Results 131 to 140 of about 239,878 (262)

Charge‐Transfer Assembly of Electrically Conductive Metal–Organic Cages

open access: yesAngewandte Chemie, EarlyView.
Electrically conductive and permanently porous metal–organic cages are realized using charge‐transfer assembly between electron‐donating cages and electron‐accepting molecules, which self‐assemble to create new charge transport pathways without sacrificing access to internal void space.
Kyungseop Lee   +3 more
wiley   +2 more sources

Defect‐Rich CoNi Prussian Blue Analogues Enable Highly Selective Electrochemical Hydrogen Peroxide Production

open access: yesAngewandte Chemie, EarlyView.
Introducing [Co(CN)6]3− defects into CoNi Prussian Blue analogues exposes square‐planar Ni–N4 active sites, leading to remarkable H2O2 selectivity during the electrochemical oxygen reduction reaction in alkaline media. ABSTRACT Decentralized electrosynthesis of hydrogen peroxide (H2O2) via the two‐electron oxygen reduction reaction (2e− ORR) offers a ...
Kai Sun   +4 more
wiley   +2 more sources

Synergistic Silylium‐Ion and Palladium Catalysis Enables Migratory Alkene Silylation With Allylsilanes by Formal C–H/C–Si Metathesis

open access: yesAngewandte Chemie, EarlyView.
Merging silylium‐ion and palladium catalysis provides a mechanistically distinct route to allylsilanes by formal C–H/Si–H metathesis. Using allylsilanes as silicon proelectrophiles, various allylarenes undergo migrative silylation, selectively yielding (E)‐allylsilanes.
Longhui Duan   +5 more
wiley   +2 more sources

A Conserved Isoleucine Gates the Diffusion of CO and O2 to the Active Site of NiFe CO‐Dehydrogenase

open access: yesAngewandte Chemie, EarlyView.
A combination of protein film electrochemistry and site‐directed mutagenesis shows that isoleucine 563 (numbering of Thermococcus sp. AM4) gates the arrival of both CO and O2 to the active site of the nickel‐iron CO dehydrogenases. Mutations at this position increase the resistance to O2 at the cost of a slower reaction with CO.
Laura Opdam   +7 more
wiley   +2 more sources

Enabling Fast Charging of Lithium‐Ion Batteries With Regioisomeric Nitrile Additives for Interphase Regulation

open access: yesAngewandte Chemie, EarlyView.
Fast charging and low‐temperature operation of lithium‐ion batteries (LIBs) are achieved by incorporating only 0.5 wt.% of a nitrile‐based additive into the commercial LP57 electrolyte. The additive enhances Li+ transport, stabilizes the solid‐electrolyte and cathode‐electrolyte interphases (SEI and CEI), and suppresses lithium plating.
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley   +2 more sources

Syntheses, X‐ray Crystal Structures, and Raman Spectra of Self‐Assembled XeO3 Chain and Network Complexes of Polytopic sp2‐ and sp3‐Nitrogen Bases

open access: yesAngewandte Chemie, EarlyView.
Supramolecular 1‐D, 2‐D, and 3‐D networks comprised of ‐(‐O═Xe(O2)‐‐)‐∞ and ‐(‐Xe(O2)O‐‐‐HO(H)‐‐)‐∞ chains coordinated to polytopic N‐base ligands were synthesized and structurally characterized by X‐ray crystallography. Their Xe‐‐‐N and Xe‐‐‐O bonds are characteristic of σ–hole bonds in which the nucleophilic Lewis base sites of the N‐ligands, H2O ...
James T. Goettel   +2 more
wiley   +2 more sources

Catalytic Enantioselective [3 + 2] Cycloaddition of α-Keto Ester Enolates and Nitrile Oxides. [PDF]

open access: yesJ Am Chem Soc, 2017
Bartlett SL   +6 more
europepmc   +1 more source

Flavin Catalysts in Organic Synthesis

open access: yesAngewandte Chemie, EarlyView.
Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley   +2 more sources

ADDITION OF NITRILE OXIDES TO SILYL- AND GERMYL-DISUBSTITUTED ETHYLENES

open access: yesMain Group Metal Chemistry, 1999
Lukevics, E.   +4 more
doaj   +1 more source

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