Research Article
Synthesis, Characterization, and Biological Activity of Some Transition Metal Complexes Derived from Novel Hydrazone Azo Schiff Base Ligand
Table 2
Selected IR frequencies of CDHBHZ and its metal(II) complexes (cm−1).
| | Compound | ν (N–H) | ν (CH=N) | ν (C=O) | ν (N=C–O) | ν (M–O) | ν (M–N) |
| | CDHBHZ | 3207 | 1620 | 1693 | — | — | — | |
[VOL · H2O] | — | 1602 | — | 1526 | 516, 619 | 480 | |
[CoL · H2O] | — | 1594 | — | 1506 | 526, 582 | 426 | |
[NiL · H2O] | — | 1609 | — | 1517 | 511, 580 | 431 | |
[CuL · H2O] | — | 1610 | — | 1525 | 520, 611 | 422 | |
[ZnL · H2O] | — | 1589 | — | 1511 | 516, 584 | 425 |
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