Table 1: Some physical parameters of the ligands L1, L2 and their complexes.
| Compound | Molecular formula | M.wt. (g/mol) | Color | m.p. (°C) |
| L1 | C17H18N2O | 266.34 | yellow | 135 |
| [Fe(L1)2Cl3]2H2O (1) | C34H40Cl3N4O4Fe | 730.91 | orange | > 300 |
| [Ni(L1)2Cl2]2H2O (2) | C34H40Cl2N4O4Ni | 698.30 | orange | > 300 |
| [Cu(L1)2Cl2] (3) | C34H36Cl2N4O2Cu | 667.13 | brown | > 300 |
| L2 | C17H17NO3 | 283.33 | yellow | 122 |
| [Fe(L2)2Cl3] (4) | C34H34Cl3N2O6Fe | 728.85 | brown | > 300 |
| [Ni(L2)2Cl2] (5) | C34H34Cl2N2O6Ni | 696.24 | yellow | > 300 |
| [Cu(L2)2Cl2] (6) | C34H34Cl2N2O6Cu | 701.09 | green | > 300 |