Isolation of a Stable, Acyclic, Two-Coordinate Silylene
Rekken, B., Brown, T., Fettinger, J., Tuononen, H., & Power, P. (2012). Isolation of a Stable, Acyclic, Two-Coordinate Silylene. Journal of the American Chemical Society, 134(15), 6504-6507. https://doi.org/10.1021/ja301091v
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Journal of the American Chemical SocietyDate
2012Copyright
© 2012 American Chemical Society. This is a final draft version of an article whose final and definitive form has been published by ACS. Published in this repository with the kind permission of the publisher.
The synthesis and characterization of a
stable, acyclic two-coordinate silylene, Si(SArMe6)2,
(ArMe6 = C6H3-2,6(C6H2-2,4,6-Me3)2) by reduction of
Br2Si(SArMe6)2 with a magnesium(I) reductant is described.
It features a v-shaped silicon coordination
with a S-Si-S angle of 90.519(2)° and an average Si-S
distance of 2.158(3) Å. Although it reacts readily with
an alkyl halide, it does not react with hydrogen under
ambient conditions probably as a result of the ca. 4.3
eV energy difference between the frontier silicon lone
pair and 3p orbitals.
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