Determine the structure of the unknown compound given the molecular formula and

Question

Determine the structure of the unknown compound given the molecular formula and IR spectra. Begin by calculating the degrees of unsaturation. For any functional group that you propose to be in your structure, clearly indicate which IR signals support the presence of this functional group. Determine the structure of the unknown compound given the molecular formula and IR spectra. Begin by calculating the degrees of unsaturation. For any functional group that you propose to be in your structure, clearly indicate which IR signals support the presence of this functional group.

Explanation / Answer

The first compound in Benzaldehyde.... there is peak at more than 1700 cm-1 which corresponds to carbonyl group of aldehyde.

The second compound is n-butyl amine... there is doublet at 3200 cm-1 which corresponds to -NH2 symmetric and asymmetric streching.

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