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Peak assignments in the FTIR spectra of PANI salt.
| Serial No | Peak Positions (cm−1) | Peak Assignment |
|---|---|---|
| 01 | 503 and 573 | –SO3H and SO3−1 of DBSA |
| 02 | 798 | Out of plane C–H bending vibration |
| 03 | 1002 | –SO3H of DBSA |
| 04 | 1122 | In-plane bending vibration of C–H |
| 05 | 1298 | C–N stretching of benzenoid ring |
| 06 | 1467 | Benzenoid ring |
| 07 | 1565 | Quinoid ring C–N strecting |
| 08 | 2853 and 2916 | C–H stretching vibrations of aromatic aniline ring |
| 09 | 3232 | Symmetric and asymmetric stretching of NH2 and NH |
