Download Aromaticity Flow Chart.ideament

Is the
molecule
cyclic?
No
Non-Aromatic
Yes
Is the cycle
completely
conjugated?
No
Non-Aromatic
Yes
Count the
number of
π
electrons
Does the number
of π electrons
equal 4n + 2?
Yes
No
Non-Aromatic
Most cyclic molecules that
fulfill all of the other criteria
will adopt a planar geometry
to become aromatic.
Is the molecule
planar?
Yes
Aromatic
No
Does the number of
π electrons equal
4n?
Yes
Is the molecule
planar?
Yes
Anti-Aromatic
No
Non-Aromatic
A cyclic molecule with 7
or more can bend out of
planarity to keep from
being anti-aromatic.