Functional GroupsFunctional Groups
IR of Acids, Amides, Anhydrides, and Acyl Halides Carboxylic Acids:Carboxylic Acids: O-H 2500-3300 cm-1 (very broad, strong) C=O 1710-1760 cm 1 (dimers lower, monomers higher ) Amides: N-H 3300-3500 cm-1 (sharp, medium, varies with # of H's) C=O 1690 cm 1 in saturated amides Anhydyd desrides:
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