Table 6 Details of FTIR spectrum of P. timoriana.

3870–3550

O–H stretch alcohol

3500–3200

O–H stretch vibration presence of alcohols, phenols

3300–2850

O–H stretch vibration, carboxylic acids

2500–2300

C–H stretch vibration, alkenes

2260–2100

C=C stretch vibration, alkynes

1990–1739

Ester C=O stretch, lipid, triglycerides

1700–1600

C=C stretch vibration, alkenes

1550–1475

N–O asymmetric stretch, nitro compounds

1470–1400

C–C stretch vibration, aromatics

1400–1320

N–O stretch vibration, nitro compounds

1300–1290

C–O stretch vibration, alcohol, carboxylic acids, esters, ether

1275–1150

C–H wag stretch vibration, alkyl halides

1020–1000

C-N stretch vibration, aliphatic amines

990–800

N–H wag stretch vibration, primary & secondary amines

790–690

C(triple bond)C-HC-H bend stretch vibration, alkynes

680–510

C–Br stretch vibration, alkyl halides, glycogen

490–400

Halogen compound