Wavenumber (cm⁻¹)

Bond

Functional group

3265.1

O-H stretch, H-bonded

alcohols, phenols

2926

C-H stretch

Alkanes

2113.4

-C(triple bond)C-stretch

Alkynes

1718.3

C=O stretching

Cyclo or aliphatic ketone

1606.5

N-H bending

or C=C stretching

Amines

or Cyclic alkene

1438.8

C-H bend

or C=C stretch (in-ring)

Alkanes

or Aromatics

1379.1

C-H bending

Alkanes

1248.7 - 1036.2

C-N stretching

Aromatic amines

883.4

=C-H bend

or C-H bend

Alkenes

or Aromatics