Results 171 to 180 of about 33,099 (286)

Structurally Constrained Stibenium: Metallomimetic C−Si Bond Activation

open access: yesAngewandte Chemie, EarlyView.
A structurally constrained stibenium cation supported by a 2,6‐bis(o‐carborano)pyridine pincer‐type ligand was prepared, and its preliminary reactivity toward silanes was investigated. Remarkably, Si−C bonds in silanes undergo activation via an oxidative‐addition‐type process at the cationic Sb center.
Donia Toami, Roman Dobrovetsky
wiley   +2 more sources

Hydrogen Isotope Exchange in Pyridine Catalyzed by an Iron(II) Imido Complex: Counterion‐Directed Regioselectivity

open access: yesAngewandte Chemie, EarlyView.
Anionic high‐spin iron(II) imido complexes are catalysts for the hydrogen isotope exchange (HIE) reaction with pyridine as the substrate. The alkali metal counter‐cation plays critical roles in activating the substrate and facilitating deuteration. These complexes catalyze site‐selective α‐, α,β,γ‐, and β,γ‐deuteration of pyridine, where the counter ...
Bin Feng   +6 more
wiley   +2 more sources

Trickle-bed Reactors Design for Hydrogen Chemical Storage

open access: yesChemical Engineering Transactions
In recent years, molecular hydrogen has emerged as a promising future energy vector. However, its widespread adoption faces challenges related to sustainable production and safe, efficient storage.
Giuseppe Andriani   +4 more
doaj  

Highly Efficient Mechanochromic Thermally Activated Delayed Fluorescence in the Deep Red to Near‐Infrared in Copper(I) [2.2]Isoindolinophanyl‐Carbene Carbazolates

open access: yesAngewandte Chemie, EarlyView.
Electrophilic [2.2]isoindolinophanyl‐based carbene iPC has been employed as charge‐transfer acceptor ligand in a series of [Cu(iPC)(carbazolate)], which show mechanochromism and environment‐dependent luminescence due to intermolecular C─‐H‐π interactions.
André M. T. Muthig   +10 more
wiley   +2 more sources

Synergistic non-bonding diatomic Pt sites for efficient hydrogenation of nitro compounds. [PDF]

open access: yesNat Commun
Chen M   +10 more
europepmc   +1 more source

From [NHC─H]• to Persistent σ‐Complex Radicals: Photoinduced Radical Chemistry of Imidazolium Salts

open access: yesAngewandte Chemie, EarlyView.
Visible‐light excitation of electron donor–acceptor (EDA) complexes between imidazolium salts and triarylamines enables controlled single‐electron transfer (SET) and reveals a family of carbene‐centered σ‐complex radical cations. Cryogenic electron paramagnetic resonance (EPR) captures the elusive [NHC─H]• intermediate and its thermal evolution into ...
Filipp M. Kolomeychuk   +4 more
wiley   +2 more sources

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