Intertwingling the White-Cãlugãreanu-Fuller Theorem
and the Hückel Aromaticity Rules

  1. Hückel rule depends on phase shift; determined by Lk and not by T.
  2. Intertwingling: Lk(π) = T + W with 4n+2/4n
  3. Both systems will stabilize by minimising T (maximizing W)
  4. An even distribution (=delocalization) of T around ring favours aromaticity

© H. S. Rzepa, 2007.