A vinyl silylsilylene and its activation of strong homo- and heteroatomic bonds.


Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2 . Email: [Email]


The facile synthesis of a rare two-coordinate acyclic silylene (R2Si:) that is stabilized using a bulky vinylic N-heterocyclic olefin ligand and the strongly σ-donating hypersilyl group [Si(SiMe3)3]- is reported. This vinyl-substituted silylene exhibits an excellent combination of prolonged thermal stability along with high reactivity towards small molecules. Despite being stable for months in solution, the reactivity of this new silylene is manifest in its ambient temperature activation of strong B-H, Si-Cl, C-O, P-P and C-H bonds.

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