Summary NMR and IR specrtroscopy.

, Mnr spectroscopy
B spin a




I
'




wagon::uT:ak:L
I
- mm .



it
.




These nuclei have T T
property
-
a

called absorb
spin which can
d
spin Bo
radio
frequency radiation when


appropriate magnetic field is

to it Stable and lower
applied in
^
energy
.




.



I


B spin with Bo
DE States the
aligned
' a states
spin ones
= -




the
DE
directly dependent on OE T with Bo 't

strength of the magnetic field .




how does it top spin state ?
go from a

All we need is
Radiofrequency energy .




B t


g)
If the nuclei
falls back
from the B state to




y
y yer .
the


is
a




released
state ,
some radio
frequency energy



17
.




This continues known
energy enchange
is as
peg
Nuclear Resonance
resonance and hence
Magnetic .