S.No.

Mean frequency (cm−1)

Assignment

1

1624 ± 1.0

β strand

2

1627 ± 2.0

3

1633 ± 2.0

4

1638 ± 2.0

5

1642 ± 1.0

6

1648 ± 2.0

Random

7

1656 ± 2.0

α-helix

8

1633 ± 3.0

β10 helix, α11-helix or type III turn

9

1667 ± 1.0

Turn

10

1675 ± 2.0

11

1680 ± 2.0

12

1685 ± 2.0

13

1691 ± 2.0

β-strand