Wave number (cm⁻¹)

Type of vibration

Functional group

3441.32

H-bonded O-H stretch (Broad Strong Band)

Alcohol/Phenol

2968.15

Doublet

Carbon dioxide

2130.11

C $\equiv$ C stretch (medium)

Terminal Alkyne

1739.78

C=O stretch (strong)

Ketone or Carboxylic acid

1599.68

C=C stretch (medium)

Alkene

1368.04

C=C stretch (medium)

Aromatic

1218.96

C–O stretch

Alcohol

1112.54

C–O stretch

Ether

1032.77

C–O stretch

Ether

896.77

C–H bend

Aromatic

814.36

C–H bend

Aromatic

755.51

C–H bend

Aromatic

693.24

C–H bend

Aromatic