Table 3.

FTIR spectrum of bonds in the aqueous extract for C. pumilum.

NO. of peak	Band position (cm−1)	bond and functional group
1	3913.82	O–H stretching of Water; N–H stretching of protein amide A
2,3,4,5	3886.83:3720.01	O–H stretch, free hydroxyl alcohols, phenols
6.7.8	3697.84:3658.3	Free OH stretch
9	3430.74	N–H stretch (1°, 2° amines, amides) O–H alcohol
10,11	2973.7:2927	C–H stretchalkanes methyl and methylene groups O–H stretch alcohol N–H stretch amine salt
12	2075.03	N=C=S stretching isothiocyanate
13	1904.36	C=C=C stretching allene
14,15	1855.19: 1811.79	C=O stretch acid halide
16,17	1781.9:1758.76	C=O stretch ester, carboxylic acid
18	1624.73	–C=C– stretch alkenes Aromatic C=C stretching N–H bend 1° amines
19	1507.1	N–O stretch nitro compounds C–C stretch (in–ring) aromatics
20	1406.82	S=O stretching Sulfate sulfonyl chloride
21	1271.109	C–O stretching Alkyi, Aryl ether C–N stretch aromatic amines
22	1120.44	C C–O stretching aliphatic ether secondary alcohol
23	1049.09	S=O stretching sulfoxide
24,25,26	617.109:545.756	C–Br stretch alkyl halides
27,28	491.759:416.549	C–Cl stretch alkyl halides