Table Of Characteristic Proton Nmr Shifts

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Table of Characteristic Proton NMR Shifts

type of proton

type of compound

chemical shift range, ppm

RCH

1˚ aliphatic

0.9

3

R

CH

2˚ aliphatic

1.3

2

2

R

CH

3˚ aliphatic

1.5

3

C=C–H

vinylic

4.6-5.9

C=C–H

vinylic, conjugated

5.5-7.5

≡

acetylenic

2-3

C

C–H

Ar–H

aromatic

6-8.5

Ar–C–H

benzylic

2.2-3

C=C–CH

allylic

1.7

3

HC–F

ﬂuorides

4-4.5

HC–Cl

chlorides

3-4

HC–Br

bromides

2.5-4

HC–I

iodides

2-4

HC–OH

alcohols

3.4-4

HC–OR

ethers

3.3-4

RCOO–CH

esters

3.7-4.1

HC–COOR

esters

2-2.2

HC–COOH

acids

2-2.6

HC–C=O

carbonyl compounds

2-2.7

RCHO

aldehydic

9-10

ROH

hydroxylic

2-4

ArOH

phenolic

4-12

C=C–OH

enolic

15-17

RCOOH

carboxylic

10.0-13.2

RNH

amino

1-5

2

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