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Important IR Peaks

Important peaks of IR spectra. Organic Chemistry

BondPeakStrength
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
Created by: TJModalStudent