What aromatic compounds follow Hückel's rule?
All aromatic compounds follow Hückel's rule.
Hückel's rule states that a planar, cyclic, conjugated molecule is aromatic if it contains 4
The most common examples have
a. Benzene and its derivatives
b. Six-membered heterocyclics like pyridine and pyrimidine
c. Five membered heterocyclics like pyrrole, furan, and thiophene
d. Five-membered anions like cyclopentadienide ion
e. Seven-membered cations like tropylium ion
These include naphthalene and azulene.
These include the annulenes.