Solution and X-ray structure of triethylsilylmethyl-substituted tropylium cation |
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| Authors: | Hassall Kathryn S White Jonathan M |
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| Affiliation: | School of Chemistry, The University of Melbourne, Parkville, 3010 Melbourne, Australia. |
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| Abstract: | ![]()
The beta-silyl tropylium cation 9 has been successfully generated in the presence of the noncoordinating counterion tetrakis(pentafluorophenyl)borate in benzene and toluene. The (13)C and (29)Si NMR spectra of 9 demonstrate that the beta-silicon substituent interacts strongly with the aromatic pi-system of the cation by hyperconjugation. The crystal structure of 9 shows structural effects consistent with this interaction. [structure--see text] |
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