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Analyse an infrared spectrum of a simple molecule to identify functional groups.
The functional groups required are those in the Data section table of characteristic infrared absorptions (wavenumber ranges in cm⁻¹): C–O in hydroxy and ester groups, 1040–1300; C=C in aromatic compounds and alkenes, 1500–1680; C=O in amides 1640–1690, in carbonyl and carboxyl groups 1670–1740, in esters 1710–1750; C≡N in nitriles, 2200–2250; C–H in alkanes, 2850–2950; N–H in amines and amides, 3300–3500; O–H in carboxyl groups 2500–3000 and in hydroxy groups 3200–3600.
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