Is Cyclononatetraene aromatic?

Is Cyclononatetraene aromatic? Cyclononatetraenyl anion is a 10π aromatic system. Two isomers of the cyclononatetraenyl anion are known: the trans,cis,cis,cis isomer (“Pac-Man”-shaped) and the all-cis isomer (a convex enneagon). What is non aromatic compound? Non Aromatic particles are each non-cyclic, non-planar, or do not hold a comprehensive conjugated π system Read more…