Table 3 The 1H NMR data for the H2L Schiff base and its complexes
Compound | 1H NMR data, ppm |
|---|---|
H2L | 12.51 (s, 1H, OHketo), 11.85, 11.35 (s, 2H, OHenol), 10.00 (s, 1H, NH), 9.22 (s, 1H, CH=Nketo), 8.91 (s, 1H, CH=Nenol), 7.18–8. 25 (m, 10H, aromatic), 4.00 (s, 2H, CH2keto), 3.62 (s, 2H, CH2enol) |
[Zn2(HL)2](CH3COO)2 | 9.43 (s, 2H, CH=N), 8.03–6.65 (m, 22Haromatic), 3.62 (d, 2H, CH2), 3.56 (d, 2H, CH2), 1.87 (s, 6H, 2CH3) |
[Cd2(HL)2](CH3COO)2 | 9.27 (s, 2H, CH=N), 7.89–6.50(m, 22Haromatic), 3.66 (s, 4H, 2CH2), 1.85 (s, 6H, 2CH3) |
[Pt(H2L)Cl2]. 2.5H2O | 12.89 (s, 1H, OH), 10.00 (s, 1H, OH), 9.51 (s, 1 H, CH=N), 8.65–7.25 (m, 11Haromatic), 3.95 (s, 2H, CH2) |