| WAVE NUMBER (FREQUENCY,/Cm) |
VIBRATION |
COMPOUND |
| 2969-2965 |
Anti symmetric |
n-alkalene |
| 2929-2912 |
Antisymmetric CH2 stretch |
n-alkalene |
| 2884-2883 |
Symmetric CH3 stretch |
n-alkalene |
| 2861-2849 |
Symmetric CH2 stretch |
n-alkalene |
| 1466-1468 |
CH3 deformation |
n-alkanes |
| 1375-1360 |
Symmetric NO2 stretch |
Secondary nitro alkanes |
| 1282-1275 |
Symmetric NO2 stretch |
Alkyl nitrates |
| 1280-1240 |
Ring stretch |
Epoxy derivatives |
| 1172-1165 |
Symmetric SO2 stretch |
Alkyl sulfonates |
| 1145-1125 |
Symmetric SO2 stretch |
Dialkyl sulfones |
| 1070-1040 |
S=O stretch(1 or 2 bands) |
Aliphatic sulfoxides |
| 1040-990 |
Ring vibrations |
Pyrazoles |
| 984.30 |
Ring breathing |
Benzene |
| 951.65 |
S bond CH3 rocking
vibration |
|
| 884.59 |
Weak vibration |
Thiophene |
| 818 |
Ring breathing |
Tetra hydro pyran |
| 760-650 |
Symmetrical skeletal stretching |
Tert-butyl group |
| 730-720 |
Ccl stretch PC conformation |
Primary chloroalkanes |
| 688 |
Ring breathing |
Tetra hydro thiophene |
