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Assignments of bands in the SERS spectra of 4-MBA
| Wavenumber (cm−1) | Band assignments* | Species |
|---|---|---|
| 1013 | In-plane ring breathing | b2 |
| 1073 | In-plane ring breathing+ν(CS) | a1 |
| 1144 | C–H deformation modes | b2 |
| 1184 | C–H deformation modes | a1 |
| 1397 | β(OH) + ν(C-ph)+in-plane ν(CC) + asymmetry ν(CO2) | b2 |
| 1489 | ν (CC) + γ(CH) | |
| 1588 | Totally symmetric ν(CC) | a1 |
ν stretching, β bending. *For ring vibrations, the corresponding vibrational modes of benzene and the symmetric species under C2v symmetry are indicated.
