Question

write down condition of aromaticity​

Answer 1

Answer:

1) cyclic -- the molecule must be a cyclic polyene;

2) planar -- the geometry of the cyclic part must be planar;

3) each atom in the cyclic system must have a p orbital perpendicular to the ring;

4) the cyclic system has 4n+2 pi electrons....

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Answer 2

Answer:

To be aromatic, a molecule must meet the following four conditions:

1. It must be a ring.

2. It must be flat (planar).

3. It must have in each atom of the ring a p orbital that’s orthogonal to the plane of the ring. In other words, no atom in the ring can be sp3 hybridized.

4. It must have a Hückel number of pi electrons, following the 4n + 2 rule.