Details

Autor(en) / Beteiligte

• Kemp-Jones, A. V
• Jones, Alan J
• Sakai, M
• Beeman, C. P
• Masamune, S

Titel

13C Nuclear Magnetic Resonance Spectra of Bridged 10π-Electron Systems. The Extent of Electron Delocalization

Ist Teil von

• Canadian journal of chemistry, 1973-03, Vol.51 (5), p.767-771

Ort / Verlag

Ottawa, Canada: NRC Research Press

Erscheinungsjahr

1973

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The 13 C n.m.r. spectrum of the cation 4 suggests the presence of considerable 1,7-bonding, indicating that it should be described as a substituted homotropylium cation rather than a monocyclic 10π-electron system. The intra-annular carbon atoms of 3 and 4 do not show a significant upfield shift due to the ring current. Explanations are offered.