Carbon–silicon hyperconjugation: X-ray structural study of N-methyl-4-trimethylsilylmethylpyridinium triflate

A Happer, NG Janice, B Pool, J White

Index: Happer, Alan; N.G, Janice; Pool, Brett; White, Jonathan Journal of Organometallic Chemistry, 2002 , vol. 659, # 1-2 p. 10 - 14

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Citation Number: 9

Abstract

Hyperconjugation between the CH2 Si bond and the charged pyridinium π system in the N- methyl 4-trimethylsilylmethyl pyridinium ion (8), manifests in the crystal structure as lengthening of the CH2 Si bond, shortening of the CH2 Cipso bond and smaller but systematic effects on the C C bond distances within the pyridinium ring. The structural effects are supported in solution by systematic effects on the 29Si–13C and 13C–13C one ...