| 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 |