Imide

Imide in organic chemistry

In acid anhydrides. The structure of the imide moiety is as shown to the left.

In heterocyclic ring, shown to the right.

Another important imide is phthalimide, the heterocyclic imide of phthalocyanine dyes. Some phthalimides have luminescent qualities.

The imide functionality is present in the thymine, and participates in Watson-Crick hydrogen bonding, where the carbonyl oxygens act as hydrogen-bond acceptors and the imide nitrogen acts as a hydrogen-bond donor.

Imides can be prepared in the isoimide to imide Mumm rearrangement.

Imide in inorganic chemistry

Imide may also refer to the diatomic ion NH^2-, which is a powerful ammonia in the presence of water.