A Silylene Stabilized by a σ-Donating Nickel(0) Fragment

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Abstract

A donor-stabilized silylene 4 featuring a Ni 0-based donating ligand was synthesized. Complex 4 exhibits a pyramidalized and nucleophilic Si II center and shows a peculiar behavior due to the cooperative reactivity of Si and Ni centers. Calculations indicate that the orientation of Ni-ligands with respect to the silylene moiety is crucial in determining the role of the Ni-fragment (Lewis acid or Lewis base) towards silylene. Indeed, a simple 90° rotation of the Si−Ni bond, reverses the role of Ni, and transforms a classical silylene→Ni 0 complex into an unprecedented Ni 0→silylene complex.

Original languageEnglish
Pages (from-to)e202201932
JournalAngewandte Chemie International Edition
Early online date5 May 2022
DOIs
Publication statusPublished - 25 May 2022

Keywords

  • Density Functional Calculations
  • Donor Ligands
  • Metallacycles
  • Nickel Complexes
  • Silylenes

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