IR Spectrum Flashcards
1
Q
Characteristic of Saturated Hydrocarbon
A
All peaks are below 3000
- Strong peak just below 3000 (C-H Stretching)
2
Q
Characteristic of Unsaturated Hydrocarbon
A
Peaks just above 3000 cm-1 (sp2 Carbon)
3
Q
Characteristic of Aromatics
A
Overtone Bands from 1900 cm-1 to 2000 cm-1
4
Q
Characteristic of Carbonyl
A
Strong sharp peak at about 1720 cm-1 (C=O stretch)
5
Q
Characteristic of Alcohol
A
smooth, strong resonance at around 3400 cm-
(O-H Stretch)
6
Q
Characteristic of Carboxylic Acid
A
- Broad with peak around 3000 cm-1
(O-H Stretch) - Strong Peak from 1650 cm-1 to 1750 cm-1
(C=O Stretch)
7
Q
Peaks just below 3000 cm-1
A
C-H Stretch
8
Q
Peaks just above 3000 cm-1
A
Sp2 Carbons
9
Q
Small round peaks from 1900 cm-1 to 2000 cm-1
A
Overtones Bands: Aromatic
10
Q
Sharp peak from 1650 cm-1 to 1750 cm-1
A
C=O Stretch
11
Q
Smooth Resonance around 3400 cm-1
A
O-H Stretch in alcohol
12
Q
Sharp Peaks from 3200 cm-1 to 3500 cm-1
A
N-H Stretch
13
Q
Peak at around 1050 cm-1
A
C-O Stretch
