The infrared spectrum of phenacetin shows absorption bands at the following positions. Match each absorption band with the structural characteristic indicated by that absorption band.
(1) 3300 cm-1
(2) 1653 cm-1
(3)1244 and 1047 cm-1
(4) 837 cm-1
(a) C-O-C
(b) C=O
(c) para disubstituted benzene
(d) N-H
The infrared spectrum of phenacetin shows absorption bands at the following positions. Match each absorption band with the structural characteristic indicated by that absorption band.
(1) 3300 cm-1
(2) 1653 cm-1
(3)1244 and 1047 cm-1
(4) 837 cm-1
(a) C-O-C
(b) C=O
(c) para disubstituted benzene
(d) N-H
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Related questions
1) The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A hydrocarbon exhibits no bands above 3000 but gives weak absorption at 2200 cm-1.
Relative absorption intensity: (s)=strong, (m)=medium, (w)=weak.
What functional class(es) does the compound belong to?
List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly.
Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm-1.
The functional class(es) of this compound is(are).(Enter letters from the table below, in any order, with no spaces or commas.)
| a. alkane (List only if no other functional class applies.) | ||||||||||||||||||||||||||
| b. alkene | h. amine | |||||||||||||||||||||||||
| c. terminal alkyne | i. aldehyde or ketone | |||||||||||||||||||||||||
| d. internal alkyne | j. carboxylic acid | |||||||||||||||||||||||||
| e. arene | k. ester | |||||||||||||||||||||||||
| f. alcohol | l. nitrile | |||||||||||||||||||||||||
| g. ether 2) The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A compound containing C, H, and O exhibits strong, broad absorption band at 3430 cm-1, a sharp band at 3300, and a band at 2200 cm-1 (m).
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