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ProtonNMRChemicalShiftRegions
Z
O
O
OH
R-CH 3
~0.9
H
H
Z= O,C
H
H
H
~1.2
H
H
carboxylic aldehyde
acid
aromatic
vinyl
H
~1.7
X
Csp3-H
X = O, N, halogen
12
10
8
PPM
6
4
saturated
2
0
RepresentativeValuesfortheSaturatedRegion
Methyl
Methylene
Methine
H
C H
H
H
C
H
~1.7ppm
~1.2ppm
~0.9ppm
C H
RepresentativeValues–NeighboringElectronegativeAtom
H
O C H
H
Cl
~3.4ppm
H
C H
H
Br
3.1ppm
H
C H
H
HC
O
H
C
C
H
CH
Aromatics
C
C
O
O
C
200
C
C
C
C
Alkynes
O
C
C
H
C
C
OR
N
Esters, Amides,
Carboxylic Acids
180
160
Alkenes
140
2.4ppm
C
O
C
220
H
H 2N C H
H
2.7ppm
2.2ppm
Carbon-13NMRChemicalShiftRegions
HC
Aldehydes
& Keyones
H
I C H
H
120
100
PPM
N
Cl
Br
RCH 3 R 3CH
R 2CH 2 R 4C
Alcohols & Ethers
80
60
Saturated
40
20
0
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