Question

How nmr can distinguish aromatic ,nonaromatic,and antiaromatic compound on the basis of 5 marks?

Answer 1

Aromatic

Perfume compounds

A. There are benzene cycles in their structure

b.have the greater percentage of carbon than non-fragrant compounds

E. For example - benzene, naphthaline, pyridine etc.

2. Antiaromatic compounds-

A. Cycle compounds but not the benzene cycle

B. Mainly alphabetic compounds

c.examples - cyclobutadiene, cyclohexane etc.

3. Non Aromatic

Not a fragrant compound-

A. Can be shrunk or cyclical but not the benzene cycle

b.saturated or unsaturated compounds.

C. Do not show resonance in their framework.

d.Mainly display electrophilic feedback.

Answer 2

Aromatic molecules are cyclic, conjugated, have (4n+2) pi electrons, and are flat. Anti-aromatic molecules are cyclic, conjugated, have (4n) pi electrons, and are flat. Non-aromatic molecules are every other molecule that fails one of these conditions.