Donor-Stabilized Silylene/Phosphine-Supported Carbon(0)Center with High Electron Density

Thibault Troadec (1) , T Atsuya Wasano , Romaric Lenk (2) , Antoine Baceiredo (3) , Nathalie Saffon-Merceron (4) , Daisuke Hashizume , Yosuke Saito , Norio Nakata , Vicenå Branchadell , Tsuyoshi Kato (3)

1 University of Warwick [Coventry]
2 CEISAM - Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation
3 LHFA - Laboratoire Hétérochimie Fondamentale et Appliquée
4 ICT - Institut de Chimie de Toulouse

An isolable donor-stabilized silavinylidene phos-phorane was synthesized. This molecule,w hich can also be regarded as an ew carbon(0) complex featuring ap hosphine and ad onor-stabilized silylene ligand, presents ac entral carbon atom with ar emarkably high electron density (À1.82). Furthermore,t he experimental electron-density study of this compound demonstrates the delocalization of the s-lone pair at the central carbon atom towardt he silicon center,afeature which is remarkably different from electronic situation of other bent-allene-type molecules.This result clearly demonstrates the powerful electron-donating ability of donor-stabilized silylene ligands,a sw ell as their excellent electron-acceptor properties.

Domaines: Chimie; Chimie inorganique

Thibault Troadec, T Atsuya Wasano, Romaric Lenk, Antoine Baceiredo, Nathalie Saffon-Merceron, et al.. Donor-Stabilized Silylene/Phosphine-Supported Carbon(0)Center with High Electron Density. Angewandte Chemie International Edition, 2017. ⟨hal-01646342⟩