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

The facile synthesis of a rare two-coordinate acyclic silylene (R 2 Si:) that is stabilized using a bulky vinylic N -heterocyclic olefin ligand and the strongly σ-donating hypersilyl group [Si(SiMe 3 ) 3 ] − is reported. This vinyl-substituted silylene exhibits an excellent combination of prolonged...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2019-07, Vol.1 (26), p.6476-6481
Main Authors: Roy, Matthew M. D, Ferguson, Michael J, McDonald, Robert, Zhou, Yuqiao, Rivard, Eric
Format: Article
Language:English
Subjects:
Activation
Ambient temperature
Bonding strength
Crystallography
Thermal stability
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Summary:The facile synthesis of a rare two-coordinate acyclic silylene (R 2 Si:) that is stabilized using a bulky vinylic N -heterocyclic olefin ligand and the strongly σ-donating hypersilyl group [Si(SiMe 3 ) 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. A facile route to an two-coordinate acyclic silylene that can activate strong homo- and heteroatomic bonds is reported.
ISSN:2041-6520
2041-6539
DOI:10.1039/c9sc01192g