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

ABSTRACT: A donor-stabilized silylene 4 featuring a Ni⁰ -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→Ni⁰ complex into an unprecedented Ni⁰ →silylene complex.

SUBMITTER: Frutos M

PROVIDER: S-EPMC9400971 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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

Frutos María M Parvin Nasrina N Baceiredo Antoine A Madec David D Saffon-Merceron Nathalie N Branchadell Vicenç V Kato Tsuyoshi T

Angewandte Chemie (International ed. in English) 20220525 29

A donor-stabilized silylene 4 featuring a Ni0 -based donating ligand was synthesized. Complex 4 exhibits a pyramidalized and nucleophilic SiII 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, r ...[more]

PMID: 35510398

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