Key Points emerging from Hückel-Heilbronner
theory
- These conclusions are derived for a cycle bounded
entirely in 2D space, and for a band of zero width
and height!
- For a 4n electron system, a Möbius Cycle is
closed shell
- The HMO solution has no geometric model: No Möbius
surface assignable to eigenvectors.
- Zimmermann was the first to directly associate a 4n electron cycle (T=1)
with aromaticity.
- Question: When was the conflation of
such Aromaticity and Chirality first explicitly
articulated? (Heilbronner fails to mention a Möbius band
is Chiral!)
© H. S. Rzepa, 2007.