| Vibrational frequency (cm−1) |
Band assignment |
| 3309 |
O-H stretching |
| 2914 |
C-H stretching |
| 1734 |
C=O stretching |
| 1423 |
C-H bend |
| 1243 |
C-N stretching |
| 1086 |
C-O stretching |
| 837 |
AlMgOH bending |