Electron content of rings of fully benzenoid hydrocarbons

摘要

The distribution of -electrons in rings of fully benzenoid hydrocarbons was investigated. It was found that the electron content EC of "full" rings varies significantly (between 5.5 and 2.5 electrons), and depends on the annelation mode, mainly on the number of adjacent rings. "Full" rings belonging to the same annelation class have nearly equal EC-values. The EC-values of all "empty" rings are also nearly equal (around 2 electrons).