Journal of the Serbian Chemical Society 2010 Volume 75, Issue 7, Pages: 943-950
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Cyclic conjugation in benzo-annelated triphenylenes
Jeremić Svetlana, Radenković Slavko, Gutman Ivan
Cyclic conjugation in benzo-annelated triphenylenes was studied by means of the energy effect (ef) and the π-electron content (EC) of the six-membered rings. A regularity that was earlier discovered in the case of acenaphthylene and fluoranthene congeners is now shown to hold also for benzo-annelated triphenylenes: Benzenoid rings that are annelated angularly with regard to the central six-membered ring Z0 of triphenylene increase the intensity of the cyclic conjugation in Z0, whereas linearly annelated benzenoid rings decrease the cyclic conjugation in Z0. The efand EC-values are strongly correlated, yet in a non-linear manner.
Keywords: cyclic conjugation, energy effect of cyclic conjugation, triphenylene, benzo-annelated triphenylene
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