Hydrosilylation of Dihydrosilylium Ion Stabilized by Coordination of a σ‐Donating Ni(0) Ligand - LHFA
Journal Articles (Review Article) Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie Year : 2024

Hydrosilylation of Dihydrosilylium Ion Stabilized by Coordination of a σ‐Donating Ni(0) Ligand

Abstract

Abstract The hydrosilylation reactions of dihydrosilylium ion 2 , stabilized by coordination of a σ‐donating Ni(0) fragment, has been investigated. Complex 2 with two reactive sites, dihydrosilylium and Ni(0) centers, readily reacts with diphenylacetylene via a selective mono‐hydrosilylation reaction to afford the corresponding Ni(0)‐stabilized (hydro)(vinyl)silylium ion 6 . In the case of ethylene, three equivalents of olefin are consumed to give a cationic Ni(II)‐complex 7 featuring a Bu‐Si + ‐Ni II ‐Et moiety with a NHC‐supported Si atom. DFT calculations indicate that the hydrosilylation proceeds by a classical (Chalk‐Harrod type) mechanism with the assistance of NHC ligand moving between Si and Ni centers according to their stabilization requirements.
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Dates and versions

hal-04754352 , version 1 (25-10-2024)

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Shintaro Takahashi, Antoine Baceiredo, Nathalie Saffon-Merceron, Tsuyoshi Kato. Hydrosilylation of Dihydrosilylium Ion Stabilized by Coordination of a σ‐Donating Ni(0) Ligand. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2024, 650 (16), ⟨10.1002/zaac.202400062⟩. ⟨hal-04754352⟩
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