Research Article
Synthesis, Structural Characterization, and Biological Activity Studies of Ni(II) and Zn(II) Complexes
Table 3
Electronic, magnetic, and ligand field parameters of Ni(II) complexes.
| Compound | Absorption maxima (cm−1) | Tentative assignments | Magnetic moment (B.M) | / | 10 Dq (cm−1) | B (cm−1) | | LFSE (kJ·mol−1) |
| Ni(L1)2 | 8532 15200 24900 |
3A2g(F) → 3T2g(F) () 3A2g(F) → 3T1g(F) () 3A2g(F) → 3T1g(P) () | 3.12 | 1.78 | 8532 | 966 | 0.92 | 122.50 |
| Ni( L2)2·H2O | 8787 16000 24390 |
3A2g(F) → 3T2g(F) () 3A2g(F) → 3T1g(F) () 3A2g(F) → 3T1g(P) () | 3.18 | 1.82 | 8787 | 935 | 0.89 | 126.19 |
| Ni(L3)2·H2O | 8313 14705 20833 24390 |
3A2g(F) → 3T2g(F) () 3A2g(F) → 3T1g(F) () 3A2g(F) → 3T1g(P) () | 3.25 | 1.76 | 8313 | 943 | 0.90 | 119.40 |
| Ni(L4)2 | 8628 16313 24570 |
3A2g(F) → 3T2g(F) () 3A2g(F) → 3T1g(F) () 3A2g(F) → 3T1g(P) () | 2.91 | 1.89 | 8628 | 999 | 0.95 | 123.92 |
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