Knowing that Acetaminophen contains the following functional groups: Hydroxyl gr

Question

Knowing that Acetaminophen contains the following functional groups: Hydroxyl group (OH), Secondary Amide group (HN-CO-R), and an Aromatic (benzene ring), and also knowing that 4-Aminophenol contains these functional groups: Primary Amino group, and Phenol, Label the peaks on the given IR Spectra:

of Acetaminophen HIT N0-2434SCORE8DBS-NO-3290 4 -HYDROXYACETANILIDE R-NIDA-61329 KBR DISC CHN02 0O 9000 2000 1500 1000 500 HAVENUNBERI l 3326 30 1667 433 3 108 31E5 33 1624 6D 1329 52 970 7689 57 3149 37161 21 1261 21 3114 44 1667 14 1244 37 3036 64ISL6 26 123S 46809 42B05 72 2930 7 1509 191228 34797 60521 4 279 7 11444 22 1117 64 716 62 658 79 839 41 650 79 626 77 729 66

Explanation / Answer

4-hydroxy acetanilide: 3300 cm-1 one peak and 1660 cm-1 carbonyl stretch indicates presence of secondary amide. 3100 cm-1 Sp2 C-H stretch, 2900 cm-1 Sp3 C-H stretch, 1600 cm-1 C=C stretch, 1250 cm-1 phenolic C-O stretch.

4-Amino phenol : 3300 cm-1 two peaks and absence of carbonyl indicates primary amine. 3100 cm-1 sp2 C-H stretch, 1600 cm-1 C=C stretch and 1250 cm-1 phenolic C-O stretch.

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