Table 4-1
NMR Proton Chemical Shifts
|
Type of Proton |
Downfield Shift from TMS |
|
|
|
|
RCH3 |
0.8-1.0 |
|
RCH2R |
1.2-1.4 |
|
R3CH |
1.4-1.7 |
|
R2C=C(R)-CH3 |
1.6-1.9 |
|
ArCH3 (Ar stands for a benzene ring) |
2.2-2.5 |
|
RCH2Cl |
3.6-3.8 |
|
RCH2Br |
3.4-3.6 |
|
RCH2I |
3.1-3.3 |
|
ROCH2R |
3.3-3.9 |
|
RCH2OH |
3.3-4.0 |
|
RC(=O)CH3 |
2.1-2.6 |
|
RC(=O)H |
9.5-9.6 |
|
R2C=CH2 |
4.6-5.0 |
|
R2C=C(R)H |
5.2-5.7 |
|
ArH |
6.0-9.5 |
|
RCēCH |
2.5-3.1 |
|
ROH |
0.5-6.0 |
|
RC(=O)OH |
10-13 |
|
ArOH |
4.5-7.7 |
|
R-NH2 |
1.0-5.0 |