Table 5 FTIR spectral values and their corresponding functional groups in V. simonsii

1

3500- 3400

Stretching

O–H

Alcohol

2

3000–2840

Stretching

C-H

Alkane

3

3000–2840

Stretching

C-H

Alkane

4

1650–1600

Stretching

C = O

Carboxylic acid

5

1450–1375

Bending

C-H

Alkane

6

1450–1375

Bending

C-H

Alkane

7

1390–1310

Stretching

C-N

Amine

8

1275–1200

Stretching

C-O

Alkyl aryl ether

9

1150–1085

Stretching

C-O

Aliphatic ether

10

1124–1087

Stretching

C-O

Secondary alcohol

11

1085–1050

Stretching

C-O

Primary alcohol

12

895–885

Bending

C = O

Alkene