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IR Spectra
Functional Group | IR Range |
---|---|
Alkanes | 2800-3000 C-H 1200 C-C |
Alkenes | 3080-3140 =C-H 1645 C=C |
Alkynes | 2200 C triple bond C 3300 triple bond C-H |
Aromatic | 2900-3100 C-H 1475-1625 C-C |
Alcohols | 3100-3500 O-H (broad) |
Ethers | 1050-1150 C-O |
Aldehydes | 2700-2900 (O)C-H 1700-1750 C=O |
Ketones | 1700-1750 C=O |
Carboxylic Acids | 1700-1750 C=O 2800-3200 O-H (broad) |
Amines | 3100-3500 N-H (sharp) |