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primary hydrocarbon
1
secondary hydrocarbon
1.2
tertiary hydrocarbon
1.7
hydrocarbon range
.5-1.5
alpha H range
2.1-2.5
en atoms range
3-4
I-C-H
2.2
N-C-H
2.5
Br-C-H
2.7
Cl-C-H
3.1
O-C-H
3.7
F-C-H
4.3
alkene range
5-6
benzene range
7-8
aldehyde range
9-10
alkyne
2.5 (really shielded)
alpha H on alkene & C=O
2.1
downfield
deshielded (left)
upfield
shielded (right)
amine range
1-3
alcohol range
2-5
if amine/amide/benzene (phenol) attached to en atom - range
5-10
carboxylic acid range
11-12