Important IR peaks Flashcards
1
Q
OH
A
3800-3200 cm-1
2
Q
phenols
A
3400-3200 cm-1
3
Q
above 3000 cm-1
A
alkenyl C-H stretch
4
Q
above 3000 cm-1
A
aromatic C-H stretch
5
Q
below 3000 cm-1
A
aliphatic stretch
6
Q
alkynes
A
2260-2100 cm-1
7
Q
nitriles
A
2250-2200 cm-1
8
Q
carbonyl region
A
2000-1630 cm-1
9
Q
typical carbonyl peak
A
1700 cm-1
10
Q
amine stretching
A
3400 cm-1
11
Q
aromatic substitution pattern
A
900-650 cm-1
12
Q
monosubstituted
A
2 bands: 770-730 cm-1 and 710-690 cm-1
13
Q
ortho substituted
A
1 band: 770-735 cm-1
14
Q
para disubstituted
A
1 band: 860-800 cm-1
15
Q
meta disubstituted
A
3 bands: 910-870 cm-1, 810-760 cm-1, 710-690 cm-1
