Table 5.
Estimated TG data of perimidine compounds and all VO(II) complexes.
| Compound | Steps | Temp. range (°C) | Decomposed | Weight loss; calcd. (found %) |
|---|---|---|---|---|
| L1 | 1st | 45.1–120.5 | -[C6H6 + N2] | 27.18 (27.16) |
| 2nd | 122.2–410.1 | -[C6H5 + CO] | 26.92 (26.95) | |
| 3rd | 410.3–670.2 | -[C8H7N2] | 33.59 (33.54) | |
| Residue | 4C | 12.31 (12.35) | ||
| [(VO)2 (SO4)2 (L1)]H2O | 1st | 80.3–120.3 | -[H2O + SO4] | 15.53 (15.55) |
| 2nd | 120.6–391.7 | -[SO4 + C6H6 + N2] | 27.53 (27.55) | |
| 3rd | 391.9–798.8 | -[C19H12N2] | 36.53 (36.50) | |
| Residue | V2O3 | 20.41 (20.40) | ||
| L2 | 1st | 65.6–156.1 | -[C6H5OCH3] | 25.72 (25.71) |
| 2nd | 156.6–299.9 | -[C6H5 + CO + N2] | 31.66 (31.69) | |
| 3rd | 301.0–663.2 | -[C9H7N2] | 34.05 (33.89) | |
| Residue | 3C | 8.57 (8.71) | ||
| [(VO)2 (SO4)2 (L2)]2H2O | 1st | 42.1–135.1 | -[2H2O + 2SO4] | 29.16 (29.16) |
| 2nd | 136.1–270.1 | -[C6H5OCH3 + N2] | 17.40 (17.29) | |
| 3rd | 271.0–485.4 | -[C6H5] | 9.85 (9.94) | |
| 4th | 485.6–797.9 | -[C13H7N2] | 24.43 (24.45) | |
| Residue | V2O3 | 19.15 (19.16) | ||
| L3 | 1st | 63.66–230.51 | -[C6H6 + NO2] | 28.50 (27.90) |
| 2nd | 231.21–410.11 | -[C7H5 + CO + N2] | 33.33 (33.31) | |
| 3rd | 410.52–650.64 | -[C11H6N2] | 38.16 (38.79) | |
| [(VO)2 (SO4)2 (L3)]H2O | 1st | 79.2–140.6 | -[H2O + SO4] | 14.63 (14.62) |
| 2nd | 141.9–278.9 | -[SO4 + C6H5 + CO] | 25.81 (25.78) | |
| 3rd | 279.1–479.5 | -[NO2 + C6H6 + N2] | 19.52 (19.53) | |
| 4th | 480.11–798.8 | -[C12H6N2] | 22.86 (22.90) | |
| Residue | V2O2 | 17.18 (17.17) | ||
| L4 | 1st | 64.65–145.46 | -[C6H5Cl + CO + N2] | 39.68 (39.68) |
| 2nd | 145.68–326.78 | -[C6H5 + N2] | 24.74 (24.75) | |
| 3rd | 330.12–680.23 | -[C12H7] | 35.58 (35.57) | |
| [(VO)2 (SO4)2 (L4)]H2O | 1st | 69.1–256.1 | -[H2O + C6H5Cl + SO4] | 29.48 (29.65) |
| 2nd | 256.9–484.1 | -[SO4 + CON2 + C6H5] | 29.80 (29.81) | |
| 3rd | 484.6–789.4 | -[C10H7N2] | 20.18 (19.98) | |
| Residue | V2O2 + 2C | 20.54 (20.56) | ||
| L5 | 1st | 62.3–169.6 | -[C6H5 + N2] | 24.74 (24.71) |
| 2nd | 160.1–371.9 | -[C6H5Cl + CO + N2] | 39.68 (39.59) | |
| 3rd | 372.6–666.8 | -[C9H7] | 27.10 (27.19) | |
| Residue | 3C | 8.48 (8.51) | ||
| [(VO)2 (SO4)2 (L5)]3H2O | 1st | 42.1–266.3 | -[3H2O + C6H5Cl] | 20.70 (20.71) |
| 2nd | 266.38–482.5 | -[2SO4 + CON2 + C6H5] | 40.41 (40.61) | |
| 3rd | 482.9–793.5 | -[C8H7N2] | 16.29 (16.36) | |
| Residue | V2O2 + 4C | 22.60 (22.32) |