Research Article
Co(II) and Cd(II) Complexes Derived from Heterocyclic Schiff-Bases: Synthesis, Structural Characterisation, and Biological Activity
Table 2
IR frequencies (cm−1) of the compounds.
| Compound | ν (O–H) | ν (N–H) | ν (CO) | ν (C=N) | ν (C–O) | ν (C–S) | ν (O–CH3) | ν (M–O) | ν (M–N) |
| L1 | 3473 | 3203 | 1664 | 1629 | 1271 | — | 1157 | — | — | CoII (L1)2Cl2 | 3529 | 3404 | 1641 | 1600 | 1257 | — | 1124 | 619 | 549 | CdII (L1)2Cl2 | 3450 | 3226 | 1643 | 1613 | 1263 | — | 1126 | 698 | 540 | L2 | 3375 | 3163 | 1669 | 1618 | 1265 | 846, 1361 | 1134 | — | — | CoII (L2)2Cl2 | 3448 | 3147 | 1647 | 1603 | 1203 | 817, 1303 | 1147 | 650 | 404 | CdII (L2)2Cl2 | 3373 | 3209 | 1649 | 1608 | 1223 | 844, 1342 | 1149 | 678 | 416 |
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