Structure and thermochemistry of β-silicon carbenium ions in the gas phase
- 1 January 1988
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 17,p. 1212-1214
- https://doi.org/10.1039/c39880001212
Abstract
Both protonation of trimethylvinylsilane and addition of Me3Si+ to ethylene in the gas phase produce the cation Me3Si(CH2CH2)+, with 39 kcal mol–1 stabilization energy relative to ethyl cation; however, chloride abstraction from Me3SiCHClCH3 yields a mixture of ions resulting from competing methyl and hydrogen shifts in the nascent silylcarbenium ion.Keywords
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