| Compound | ν(OH) solvent | νas(NH2) | νs(NH2) | ν(NH) | ν(CO) | ν(N-C-O) | ν(M-N) |
| L1,MDH | - | 3320 | 3156 | 2945 | 1705sh | 1494 | ---- |
| [Cu(L)Cl2] | - | 3487 | 3209 | 3114 | 1689 | 1602 | 430 |
| [Co(L)2(H2O)Cl]Cl | - | 3467 | 3370 | 3330 | 1650 | 1550 | 453 |
| [Cu(L)3]Cl2∙½EtOH | 3444 | 3410 | 3194 |
| - | 1642 | 435 |
| [Co(L)3]Cl2 | - | 3447 | 3200 | 3055 | 1669 | 1628 | 440 |
| [Cu(L)I2]∙2H2O | 3445 | 3411 | 3278 |
| - | 1661 | 429 |
| [Co(L)(H2O)2I2] | - | 3435 | 3320 | 3090 | 1660 | 1615 | 435 |
| [Co(L)3]I2∙½EtOH∙2H2O | 3450 | 3420 | 3365 | 3130 | 1675 | 1620 | 425 |
| [Cu(L)3]I2 | - | 3410 | 3320 | 3110 | 1660 | 1610 | 440 |