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Important IR Peaks
Important peaks of IR spectra. Organic Chemistry
Bond | Peak | Strength |
---|---|---|
N-H | 3500-3200 | medium |
C-C | ~3000~ | |
C(sp3)-H | 3000-2850 | strong |
C(sp2)-H | 3150-3000 | medium |
C(sp)-H | 3300 | medium |
CΞC | 2250 | medium |
CΞN | 2250 | medium |
C=O | 1800-1650 (often ~1700) | strong |
C=C | 1650 | medium |
Phenyl Ring | 1600,1500 Double Peaks | medium |
Keytone/Aldehyde | 1710 | |
Acids | 1710 | |
Esters | 1740 | |
Amides | 1650 | |
O-H | 3600-3200 | Strong and Broad |