Barium siloxides and catalysed formation of Si-O-Si' motifs - Université de Rennes Access content directly
Journal Articles Chemistry - A European Journal Year : 2019

Barium siloxides and catalysed formation of Si-O-Si' motifs

Abstract

The first unsupported barium siloxide, the homoleptic dimer [Ba {μ -OSi(SiMe ) } {OSi(SiMe ) }], is presented, and its structural features are discussed in the light of DFT computations. This complex, together with the related [Ba{μ -OSi(SiMe ) }{N(SiMe ) }] and their parent [Ba{N(SiMe ) } ] , mediates the formation of asymmetric siloxanes R Si-O-SiR' through the first case of main group metal-mediated dehydrocoupling of silanols and hydrosilanes. Early kinetic analysis highlights an unusual catalytic manifold.
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Dates and versions

hal-02280837 , version 1 (19-11-2019)

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Erwann Le Coz, Samia Kahlal, Jean-Yves Saillard, Thierry Roisnel, Vincent Dorcet, et al.. Barium siloxides and catalysed formation of Si-O-Si' motifs. Chemistry - A European Journal, 2019, 25 (59), pp.13509-13513. ⟨10.1002/chem.201903676⟩. ⟨hal-02280837⟩
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