IR Frequencies Flashcards
1
Q
sp3 C-H
A
2850 - 2960 (s)
2
Q
sp2 C-H
A
3010 - 3095 (w - m)
3
Q
O=C-H (aldehyde)
A
2700 - 2900 (w)
4
Q
sp C-H
A
3300 sharp (s)
5
Q
N-H
A
3300-3500 (m)
6
Q
O-H (free)
A
3590-3600 (s) sharp
7
Q
O-H (normal H-bonded)
A
3200 - 3600 (s) broad
8
Q
O-H (strongly H-bonded)
A
2500-3200 (s) broad
9
Q
nitriles (RCN)
A
2200-2260 (v)
10
Q
alkynes (RC≡CR’)
A
2150-2260 (w)
11
Q
alkynes (RC≡CH)
A
2100-2140 (w)
12
Q
Alkenes
A
1620 - 1680 (v)
13
Q
Enones (C=C-C=O)
A
1590 - 1640 (s)
14
Q
aromatics: one, two or three of:
A
1600, 1580, 1500 (v)
15
Q
nitro (NO2)
A
1560, 1350 (s)
