Research Article
Synthesis, Structural, and Biological Studies of Some Schiff Bases and Their Metal Complexes
Table 1
Analytical and physical data of ligand and metal complexes.
| | Compound number | Compounds/Molecular Formulae | Elemental analysis % found/(Cal.) | | Molecular wt/colour | Dec.temp./ M.Pt. (°C) | C % | H % | N % | Yield % | B.M | Cond. S cm2 mol−1 |
| | (1) | C11H14N2O (mna)
| 120–125 | 69.5 | 7.1 | 14.5 | 62.0 | — | — | | (Pinkish Cream) | | (69.4) | (7.3) | (14.7) | | | | | (2) | [VO(mna)2]SO42H2O
| 230–239 | 45.9 | 4.5 | 12.7 | 70.7 | 1.76 | 53.8 | | (Dark Green) | | (45.6) | (4.8) | (9.6) | | | | | (3) | [Co(mna)2(H2O)2] Cl2 | >300 | 48.0
| 5.2
| 12.7
| 54.5 | 5.07 | 124.5 | | (Purple) | | (48.3) | (5.1) | (10.2) | | | | | (4) | C14H12N2O2(han)
| 123 | 70.1 | 5.2 | 11.9 | 91.2 | — | — | | (Cream) | | (70.0) | (5.0) | (11.6) | | | | | (5) | [VO(han)2] H2O | 205–207 | 59.5
| 3.5
| 14.3
| 85.9 | 1.78 | 20.1 | | (Dark Green) | | (59.4) | (3.8) | (9.9) | | | | | (6) | [Co(han)2]
| 276–278 | 62.4 | 4.1 | 14.3 | 55.3 | 5.12 | 16.9 | | (Purple) | | (62.3) | (4.0) | (10.3) | | | | | (7) | C14H13N3O2(hai) | 240 | 65.6
| 5.2
| 16.3
| 86.4 | — | — | | (Cream) | | (65.8) | (5.0) | (16.4) | | | | | (8) | [VO(hai)2]3H2O | 120–125 | 53.4
| 3.5
| 13.1
| 54.2 | 1.79 | 7.1 | | (Dark Brown) | | (53.2) | (3.8) | (13.3) | | | | | (9) | [Co(hai)2]2H2O
| >300 | 55.7 | 3.7 | 13.1 | 73.4 | 5.10 | 13.3 | | (Light Brown) | | (55.5) | (3.9) | (13.8) | | | | | (10) | C11H14NOCl (map) | 140 | 62.8
| 6.5
| 6.4
| 44.4 | — | — | | (Light Coffee) | | (62.5) | (6.6) | (6.6) | | | | | (11) | [VO(map)2]5H2O
| >300 | 45.0 | 4.1 | 5.0 | 88.3 | 1.76 | 6.5 | | (Black) | | (45.5) | (4.4) | (4.8) | | | | | (12) | [Co(map)2(H2O)2] 2H2O
| >300 | 47.3 | 4.8 | 5.0 | 60.8 | 5.08 | 18.8 | | (Black) | | (47.6) | (4.6) | (5.0) | | | |
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Electronic spectra.
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