Protonation of cis-bicyclo[6.1. 0]nonatriene (8) and transition state (9) to obtain (10), its 13CNMR spectrum shows that it is separated by two methylene groups (C1 and C7) Delocalized system.
Will be shunned by the second ring. 1. 0) triene (8) protonization, obtained by the transition state (9) (10), its 13CNMR spectrum shows that it is separated by two methylene (C1 and C7) out-of-domain system.
The 13C NMR spectra of (10) obtained by protonation of CIS bicyclo [6.1.0] nontriene (8) through transition state (9) shows that it is a delocalized system separated by two methylene groups (C1 and C7).