Ranges for Shifts Flashcards
1
Q
0.8-1.0 ppm
A
RCH3
2
Q
1.2 - 1.4 ppm
A
R-CH2-R
3
Q
1.4 - 1.7 ppm
A
R-R-R-CH
4
Q
2.1 - 2.5 ppm
A
allylic, benzylic + CH2 or CH next to ketone
5
Q
2 - 3.1 ppm
A
triple bond
6
Q
3.3 - 3.8 ppm
A
Br, Cl, I
7
Q
3.3 - 4.3 ppm
A
R-O-R
8
Q
0.5 - 5.0 ppm
A
O-H, N-H2 (single signal)
9
Q
4.5 - 5.5 ppm
4.5 - 6.5 ppm
A
Terminal double bond
double bond
10
Q
6.5 - 8.5 ppm
A
Aromatics
11
Q
9-10 ppm
A
Aldehyde
12
Q
11-13 ppm
A
Carboxylic Acid
13
Q
C13 0 - 40 ppm
A
alkyl C’s C-C-C-C
14
Q
C13 50-90 ppm
A
C-O, C-Cl, C-Br
15
Q
C13 65-95 ppm
A
alkynes
16
Q
C13 100-160 ppm
A
alkene, aromatic
17
Q
C13 200ish ppm
A
keytone
18
Q
IR 600 - 1500
A
Single Bonds/alkanes
C-C, C-O, C-N
19
Q
IR 1500-2000
A
Double Bonds/alkene
C–C, C–O
20
Q
IR 2000-2300
A
Triple bonds/alkyne
C—C C–N
21
Q
IR 2500 - 4000
A
C-H, O-H, N-H
22
Q
IR 3300
A
OH, amine
