Aromatics Flashcards
1
Q
What is an aromatic?
2 rules
A
A compound that is planar and follows Hückel’s rule
2
Q
What is Hückel’s rule?
A
Planar rings with 4n + 2 pi electrons should be aromatic
3
Q
What is an anti-aromatic?
A
A compound that is conjugated but not aromatic (higher energy)
4
Q
What is a non-aromatic?
A
A compound that is not conjugated or not cyclic
5
Q
What is Hückels rule?
A
4n + 2 pi electrons
6
Q
How does a cation affect aromaticity?
A
It creates a planar structure which makes it possible to form an aromatic
7
Q
How does an anion affect aromaticity?
A
The lone pair of electrons can participate in conjugation, possibly forming an aromatic
