Nature Chemistry, Год журнала: 2024, Номер 16(8), С. 1219 - 1220
Опубликована: Июль 24, 2024
Язык: Английский
Chemical Science, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
Structurally constraining p-block elements has become a powerful strategy for bond activation chemistry with main group compounds. Traditionally, this approach focuses on mononuclear centers, yet applying structural constraints to systems element-element bonds remains underexplored. In study, we introduce cation featuring constraint-elongated P-P that spontaneously adds unactivated alkynes, alkenes, aldehydes, and ketones. Despite its positive charge, the surprisingly apolar
Язык: Английский
Процитировано
1
Chemistry - A European Journal, Год журнала: 2024, Номер unknown
Опубликована: Окт. 22, 2024
Abstract Two homologous series of pnictogen(III) dications, stabilized by 2,6‐bis(benzimidazole‐2‐yl)pyridine ligands have been prepared. Both contain Pn III ‐X moieties (Pn = P, As, Sb, Bi; X Cl or Ph) and fully characterized using spectroscopic methods including X‐ray crystallography. The Lewis acidity these compounds has also probed computational methods; the results suggest that dictations are strong acids, with PnCl 2+ being more acidic than PnPh compounds, increasing from P to Bi, in both series. PhP ‐containing compound was found be a versatile transfer reagent, leading new synthetic routes for various PhP‐containing compounds. redox chemistry all cyclic voltammetry chemical reductions. In some cases resulting I could trapped diazabutadienes.
Язык: Английский
Процитировано
0
Inorganic Chemistry, Год журнала: 2024, Номер 63(45), С. 21462 - 21473
Опубликована: Окт. 28, 2024
The focus is on developing alternative molecular catalysts using main-group elements and implementing strategic improvements for sustainable hydrogen production. For this purpose, a FB corrole with (2-(2-((4-methylphenyl)sulfonamido)ethoxy)phenyl) group inserted into the meso position (C-10) of corrole, along its high-valent (corrolato)(oxo)antimony(V) dimer, was synthesized. In crystal structure analysis dimer complex, it noted that sulfonamido in ligand periphery sits atop ring. electrochemical evolution reaction (HER) studied compared previously reported which lacks hydrogen-bond donor groups secondary coordination sphere. newly designed molecules, featuring sphere, demonstrated clear superiority HER. Controlled potential electrolysis employed to evaluate charge accumulation associated generation homogeneous three-electrode system presence 50 mM TFA. produced exhibits Faradaic efficiency approximately 80.96%, turnover frequency (TOF) 0.44 h–1, production rate 52.83 μL highlighting effective catalytic activity evolution.
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2024, Номер unknown
Опубликована: Май 23, 2024
Abstract Silyl anions have garnered significant attention due to their synthetic abilities. However, previously reported silyl been limited either trigonal‐pyramidal or trigonal‐planar geometries, which confine them primarily as nucleophiles in substitution reactions. Herein, we report the isolation of unprecedented T‐shaped planar anion salt 2 by employment a geometrically constrained triamido pincer ligand. Theoretical calculations disclosed that silicon centre possesses both lone pair electrons and an empty 3p z orbital. In addition nucleophilic reactions with Ph 3 PAuCl W(CO) 6 , readily undergoes oxidative additions CO 2,6‐dimethylphenylisonitrile at room temperature. Furthermore, under mild conditions, compound cleaves C sp2 −H, H−H bonds 1,2,4,5‐tetrafluorobenzene, intramolecular i Pr group, dihydrogen, representing first examples C−H activations mediated anion, respectively. This work unveils new reactivity owing non‐classical geometry electronic structure.
Язык: Английский
Процитировано
0
Nature Chemistry, Год журнала: 2024, Номер 16(8), С. 1219 - 1220
Опубликована: Июль 24, 2024
Язык: Английский
Процитировано
0