Table 5 Thermoanalytical results of Cu(II), Co(II) and Ni(II) complexes of the ligand (L)
Compound; NO | Temperature Range (°C) | Loss in weight found(calc.)a% | Decomposition product loss | ||
|---|---|---|---|---|---|
Mass loss% | Total mass loss% | ||||
1) [Cu(LH)Cl(EtOH)(H2O)].1/2EtOH.1/2H2O | 1st | 30–185 | 6.4 (6.3) | 72.6 (71.931) | Loss of 1/2H2O.1/2EtOH(Lattice) |
2nd | 185–367 | 34.7 (34.8) | Loss of C4H11NCl | ||
3rd | 367–556 | 20.3 (19.9) | Loss of C2HN2SO | ||
4th | 556–782 | 11.2 (10.8) | Loss of HNCl leaving CuO + 6C | ||
2) [Co(L–H)AC(EtOH)(H2O)].EtOH | 1st | 28–105 | 8.68 (8.088) | 76.22 (77.123) | Loss of EtOH(Lattice) |
2nd | 105–404 | 54.5 (54.997) | Loss of EtOH + H2O(Coord) + C7H15O3N3Cl | ||
3rd | 404–643 | 13.6 (13.98) | Loss of C2H2N3,LeavingCo + C5H4 | ||
3) [Ni(L–H)EtOH]Cl | 1st | 125–363 | 39.82 (39.17) | 74.72 (73.55) | Loss of EtOH(Coord) + C3H9NCl |
2nd | 362–565 | 34.9 (34.38) | Loss of C5H4N3OS Leaving NiC4H5O1/2 | ||