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. doi:10.1021/ja301091v
Published inJournal of the American Chemical Society
DisciplineEpäorgaaninen ja analyyttinen kemia
© 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.