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IR frequencies

QuestionAnswer
O-H (alcohols) 3650-3200
O-H (carboxylic acid) 3300-2500
N-H (amide/amine) 3500-3250
C-H (alkyne) 3330-3260
C-H (alkene/arene) 3150-3000
C-H (alkane) 3000-2840
C-C and C-N (triple bonds) 2260-2100
C=O (aldehyde/ketone) 1750-1690
C=O (ester) 1750-1735
C=O (carboxylic acid) 1760-1710
C=C 1680-1620
Created by: B_
 

 



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