IR Spectroscopy

, RED) SPECTROSCOPY
IR (INFRA


Functional
main function Identification of
-




- -


groups

It is a
powerful technique for structure

identification
.




5 to 15
Range-2 u u
.




Near IR IR Far IR
region region
region

0 .
8u 2 Su. isie 200 I




Effect of Range-Absorption of
IR radiations

causes molecular vibrations
.




molecular vibrations

2



stretching vibration Bending Vibration
Bond length changes Bond length running same
Bond angle remains same
Bond angle changes