Phosphorus-mediated hydrogenation catalysis DOI
Josh Abbenseth

Nature Chemistry, Год журнала: 2024, Номер 16(8), С. 1219 - 1220

Опубликована: Июль 24, 2024

Язык: Английский

Structural Constraint at a P–P Bond: Phosphinophosphination of Alkenes, Alkynes, and Carbonyls by a Concerted Mechanism DOI Creative Commons
Lijun You, Daniel Roth, Lutz Greb

и другие.

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

PnictogenIII Dications Supported by BZIMPY Ligands DOI Creative Commons
Michael A. Land, William P. Howlett, Ala’aeddeen Swidan

и другие.

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

Corrolato(oxo)antimony(V) Dimer with Hydrogen-Bond Donor Groups in Secondary Coordination Sphere as a Catalyst for Hydrogen Evolution Reaction DOI
Rupak Chakraborty, Belarani Ojha,

Tanmoy Pain

и другие.

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

Isolable T‐Shaped Planar Silyl Anion DOI

Xiaona Liu,

Yuyang Dai,

Qidi Bao

и другие.

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

Phosphorus-mediated hydrogenation catalysis DOI
Josh Abbenseth

Nature Chemistry, Год журнала: 2024, Номер 16(8), С. 1219 - 1220

Опубликована: Июль 24, 2024

Язык: Английский

Процитировано

0