Table 2 FTIR peak positions, intensities, and functional groups.
Peak position (cm⁻1) | Relative intensity | Functional group assignment |
|---|---|---|
~ 3400–3500 | Strong | O–H Stretch (alcohols, phenols) |
~ 3300–3400 | Medium | N–H Stretch (amines, amides) |
~ 1650 | Medium | C=C Stretch (alkenes, aromatic rings) |
~ 1700 | Medium | C=O Stretch (carbonyl groups) |
~ 1450 | Medium | C–O Stretch (alcohols, esters, ethers) |
~ 1200–1250 | Medium | P–OH Bending (phosphates) |
