Research Article
Synthesis and Characterization of β-Diketimine Schiff Base Complexes with Ni(II) and Zn(II) Ions: Experimental and Theoretical Study
Table 2
Selected IR-vibration values (theoretical and experimental) (cm−1) of 1–3.
| | Compound | Theoretical IR | Experimental IR |
| | β-Diketimine 1 | ν(C=N) | 1638 | 1629 | | ν(C=O) | 1758 | 1724 | | ν(1C-2 C) | 1780 | 1772 | | ν(N-Ar) | 2123 | 2095 |
| | β-Diketimine tautomer of 1 | ν(C=N) | 1638 | 1628 | | Ν(1C-6NH) | 1562 | 1523 | | ν(C=O) | 1755 | 1724 | | ν(6N-H) | 3290 | 3300 | | ν(1C-2 C) | 1738 | 1692 | | ν(N-Ar) | 2123 | 2120 |
| | Ni(II) β-diketimine 2 | ν(C=N) | 1628 | 1619 | | ν(C=O) | 1755 | 1723 | | ν(N-Ar) | 2123 | 2093 | | ν(Ni-N) | 520 | 512 |
| | Zn(II) β-diketimine 3 | ν(C=N) | 1625 | 1612 | | ν(C=O) | 1767 | 1745 | | ν(Ni-N) | 540 | 528 |
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