Table 1.
FTIR data comparison chart of complexes (1)–(4) in comparison with those of free ligands.
| ν C=N (cm−1) | ν N=N (cm−1) | |
|---|---|---|
| Ferrozine | 1608 | 1503 |
| Complex (1) | 1596 | 1498 |
| Complex (2) | 1595 | 1498 |
| Ferene | 1589 | 1507 |
| Complex (3) | 1567 | 1499 |
| Complex (4) | 1570 | 1494 |
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