Research Article
Synthesis, Spectral, Thermogravimetric, XRD, Molecular Modelling and Potential Antibacterial Studies of Dimeric Complexes with Bis Bidentate ON–NO Donor Azo Dye Ligands
Table 1
Analytical and physical data of the ligands and its complexes.
| | Compounds | Melting point (°C) | Colour | % Metal found (calculated) | % Nitrogen found (calculated) | % Chlorine found (calculated) | eff B.M. |
| | LH2 | 110 | Dark brown | — | 14.56 (15.00) | | — | |
L′H2 | 85 | Orange red | | 13.00 (13.41) | | | | Co2LCl2(H2O)6 | >280 | Brown | 13.26 (13.78) | 9.52 (9.83) | 8.00 (8.31) | 5.0 | | Co2L′Cl2(H2O)6 | >280 | Greenish yellow | 12.33 (12.79) | 8.6 (9.12) | 7.25 (7.71) | 5.1 | | Ni2LCl2(H2O)6 | >280 | Brown | 13.19 (13.74) | 9.33 (9.83) | 7.95 (8.31) | 3.1 | | Ni2L′Cl2(H2O)6 | >280 | Brown | 12.30 (12.75) | 8.90 (9.13) | 7.26 (7.71) | 3.0 | | Cu2LCl2(H2O)6 | >280 | Dark brown | 14.64 (14.69) | 9.66 (9.74) | 7.91 (8.22) | 1.8 | | Cu2L′Cl2(H2O)6 | >280 | Orange red | 13.61 (13.65) | 8.89 (9.03) | 7.12 (7.63) | 1.8 | | Zn2LCl2(H2O)2 | >280 | Light brown | 16.00 (16.43) | 10.17 (10.55) | 8.44 (8.92) | — | | Zn2L′Cl2(H2O)2 | >280 | Light brown | 14.83 (15.17) | 9.57 (9.75) | 7.83 (8.23) | | | Cd2LCl2(H2O)2 | >280 | Light brown | 24.95 (24.26) | 9.05 (9.44) | 7.40 (7.98) | — | | Cd2L′Cl2(H2O)2 | >280 | Light brown | 23.01 (23.52) | 8.32 (8.79) | 6.94 (7.43) | | | Hg2LCl2(H2O)2 | >280 | Brown | 37.31 (37.63) | 7.23 (7.88) | 6.07 (6.66) | — | | Hg2L′Cl2(H2O)2 | >280 | Buff | 35.01 (35.43) | 7.00 (7.42) | 5.82 (6.27) | |
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LH2 = 4,4′-bis(4′-hydroxyquinolinolinylazo)diphenylsulphone.
L′H2 = 4,4′-bis(acetoacetanilideazo)diphenylsulphone.
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