Table 2.
FTIR spectrum of bond in the aqueous extract for S. oleraceus.
| NO. of peak | Band position (cm−1) | bond and functional group |
|---|---|---|
| 1 | 3913.82 | O–H Hydroxy group |
| 2,3,4 | 3882,3850,3780 | O–H stretch, free hydroxyl alcohols, phenols |
| 5 | 3421.1 | N–H stretch aliphatic primary amine O–H stretch |
| 6 | 1855.19 | C=C asymmetric stretch |
| 7 | 1614.13 | –C=C– stretch alkenes Aromatic C=C stretching N–H bend 1° amines |
| 8 | 1406.82 | C–C stretch (in–ring) aromatics S=O stretching sulfate |
| 9 | 1273.75 | C–O stretching alkaylarayl ether C–N stretch aromatic amines |
| 10 | 1119.48 | C–O alcohols, carboxylic acids, esters, ethers C–N stretch aliphatic amines |
| 11 | 930.485 | O–H bend carboxylic acids |
| 12 | 855.275 | C–Cl stretch alkyl halides |
| 13 | 612.288 | -C=C–H: C–H bend alkynes C–Br stretch alkyl halides |
| 14 | 546.72 | C–Br stretch alkyl halides |
| 15,16,17 | 444.619:411.728 | C–Cl stretch alkyl halides |