A Lead(II) Substituted Triplet Carbene

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(43), P. 29630 - 29636

Published: Oct. 18, 2024

Reaction of the pincer-type ligand L

Language: Английский

Exploring Singlet Carbyne Anions and Related Low-Valent Carbon Species Utilizing a Cyclic Phosphino Substituent

Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

ConspectusThe advancement of synthetic methodologies is fundamentally driven by a deeper understanding the structure–reactivity relationships reactive key intermediates. Carbyne anions are compounds featuring monovalent anionic carbon possessing four nonbonding valence electrons, which were historically confined to theoretical constructs or observed solely within environment gas-phase studies. These species possess potential for applications across diverse domains chemistry and ancillary fields. This Account details our focused efforts isolate singlet carbyne explores isolation range related low-valent species. Our achievements include synthesis characterization, under normal laboratory conditions, gold-substituted free carbenes, copper anion complexes, ketenyl anions, keteniminyl stannyne. have been accomplished using bulky cyclic phosphino substituent, effectively stabilizes these species.Our journey commenced with phosphinocarbenes, characterized robust carbon–gold covalent single bond, progressed complexes carbon–copper ionic bond. was realized through synergistic combination group closed-shell electron-rich late transition metal. The robustness bond contrasts markedly susceptibility imparts behavior characteristic phosphinocarbyne coordination sphere copper, thereby enabling unique transfer reactions. tri-active ambiphilic nature in enables formation three chemical bonds at center one-pot Subsequent investigations unveiled ligand exchange reactions site, leading generation stable crystalline anions. emerge as potent synthons capable producing array derivatives. In addition, we isolated phosphinostannyne, rare carbon–tin multiple two adjacent centers. Collectively, demonstrated remarkable propensity engaging spectrum reactions, underscoring their versatility confirming utility synthesizing uncharted, main species.The insights derived from research contribute broader may provide platform future innovations chemistry, catalytic processes, novel materials. As continue explore develop this area study, hope that might follow footsteps potentially finding various fields future.

Language: Английский

(Phosphino)(stannyl)carbene

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(72), P. 9793 - 9796

Published: Jan. 1, 2024

The synthesis of a (phosphino)(stannyl)carbene is documented. combination phosphino and stannyl substituents imparts highly ambiphilic nature to this carbene, enabling reactions with cyanide, isocyanide, carbon monoxide. This leads rare stannylketenimines stannylketene.

Language: Английский