1 of 8

1

C-C stretching

1

2 of 8

2

O-H stretching

2

3 of 8

3

N-H stretching

3

4 of 8

4

C-H stretching

4

5 of 8

5

C-N stretching

5

6 of 8

6

C-O stretching

6

7 of 8

7

C-O stretching

1806 cm−1

1755 cm−1

1827 cm−1

1748 cm−1

1768 cm−1

1715 cm−1

1681 cm−1

7

8 of 8

8

Amide I

CO stretching

Amide II

NH bending

+ CN stretching

Amide I, II

8