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3200 - 3600 cm⁻¹
Alcohol (IR spectra)
Look for the big fatty!
3100 - 3550 cm⁻¹
Amine (IR spectra)
Look at the shape to distinguish between 1˚ and 2˚
2800 - 3200 cm⁻¹
C-H bonds (IR spectra)
1600 - 1680 cm⁻¹
C=C (IR spectra)
1630 - 1820 cm⁻¹
C=O (IR spectra)
Usually a very strong peak
1000 - 1250 cm⁻¹
C-O (IR spectra)
0 - 2 ppm
sp³ C-H
2 - 3 ppm
alpha hydrogens
1.6 - 2.6 ppm
allylic hydrogens
2.0 - 3.0 ppm
terminal hydrogen on an alkyne
3 - 4.5 ppm
electronegative atom - C - H
4.5 - 4.7 ppm
phenol
4.5 - 6.0 ppm
vinyl hydrogens
6.5 - 8.5 ppm
"benzene"
9.5 - 10 ppm
aldehyde
10 - 13
carboxylic acid