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Characteristic Proton NMR Chemical Shifts

StructureChemical Shift (ppm)
R-CH30.9
R-CH2-R1.3
R3-C-H1.5
C=C-H5.2-5.7
C=C-H4.6-5
C=C-CH1.7
C≡C-H1.7-3.1
Ar-H6-9.5
Ar-C-H2.2-2.5
F-C-H4-4.5
Cl-C-H3.7
Br-C-H3.5
I-C-H3.2
H-C-OH3.4-4
R-C-OH1-5.5
RO-C-H3.3-4
RCOO-C-H3.7-4.1
H-C-COOR2.1
H-C-COOH2-2.6
RCOOH9-12
O=C-C-H2.1-2.6
R-(C=O)H9.5-9.9
Ar-OH4-10
C=C-OH15-17
C-SH3.4-4
RNH20.5-5
RCONHR5-9
ArNH23-5


StructureChemical Shift (ppm)
C=O (in ketones)205-220
C=O (in aldehydes)190-200
C=O (in acids and esters)160-185
C in aromatic rings125-150
C=C (in alkenes)115-140
R-CH2O-50-90
R-CH2Cl30-60
R-CH2NH230-65
R3C-H25-35
CH3CO-20-50
R2CH216-25
R-CH310-15
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