Table 3.
Band assignments for Raman spectra of (Pro)9 and (Pro)6 peptide structures based on [63,65,66,67,68].
| Peak Position (cm−1) | Proposed Band Assignment | |
|---|---|---|
| (Pro)9 | (Pro)6 | |
| 1736 | 1738 | C=O stretch |
| 1660 | 1660 | Amide I (C=O stretch) |
| 1616 | 1614 | C=O asymmetric stretch |
| 1451 | 1453 | CH2 scissor or CH2 bend |
| 1272 | 1274 | Amide III (C-N stretch and N-H bend) |
| 1245 | 1245 | C-O stretch |
| 1197 | 1197 | NH+ deformation |
| 1165 | 1165 | NH2+ deformation |
| 1096 | 1096 | CH2 rock |
| 1050 | 1051 | C-N stretch |
| 974 | 974 | C-C-N stretch |
| 923 | 924 | C-COO− stretch |
| 836 | 836 | C-C stretch or CH2 rock |
| 730 | 731 | COO− deformation |
| 417 | 417 | OCC bend–2011 Kecel |
| 365 | 367 | NCC bend–2011 Kecel |