UV Visible Spectroscopy

, UV visible spectroscopy
Cabsorption)
·
Introduction -




Alternate Name -
Electronic Spectroscopy
OR
Ultra-violet-visible Spectroscopy
Main
function -
For identification of number

of conjugation in molecules


and multiple bonds
Conjugation
-

presence of single
at alternate positions
.


=
c=c -
c= c -

C = C -
C



Range-zoonm to goo um




vac num
UN visible
uV
region region region
loomm coonm from from

some bonds also absorb some radiation
between 100 nm-2oonm


But the main
range is zoonm to goonm




Range This technique involves the
Effect of
-




promotion of electrons
from ground
level to level
.
higher energy
This process is called Electronic Transition
.