Research Article
Spectroscopic Characterization and Biological Activity of Mixed Ligand Complexes of Ni(II) with 1,10-Phenanthroline and Heterocyclic Schiff Bases
Table 4
Antimicrobial activity of ternary complexes.
| Complex | E. coli | P. aeruginosa | R. oryzae | A. niger |
| MIIMP | + | + | − | + | Ni (MIIMP)2 (H2O)2 | + | + | + | + | Ni (1,10-phen) (MIIMP) (H2O)2Cl | ++ | ++ | + | ++ | CMIIMP | + | + | + | + | Ni (CMIIMP)2 (H2O)2 | + | − | + | − | Ni (1,10-phen) (CMIIMP) (H2O)2Cl | ++ | + | + | + | EMIIMP | + | + | + | + | Ni (EMIIMP)2 (H2O)2 | ++ | ++ | ++ | ++ | Ni (1,10-phen) (EMIIMP) (H2O)2Cl | +++ | ++ | + | ++ | MIIMNP | + | + | + | + | Ni (MIIMNP)2 (H2O)2 | ++ | ++ | ++ | ++ | Ni (1,10-phen) (MIIMNP) (H2O)2Cl | ++ | + | + | ++ | MEMIIMP | + | − | − | + | Ni (MEMIIMP)2 (H2O)2 | + | + | + | + | Ni (1,10-phen) (MEMIIMP) (H2O)2Cl | + | + | + | + | MIIMMP | + | + | + | + | Ni (MIIMMP)2 (H2O)2 | ++ | + | − | + | Ni (1,10-phen) (MMIIMP) (H2O)2Cl | + | ++ | + | + | BMIIMP | + | − | − | − | Ni (BMIIMP)2 (H2O)2 | ++ | + | + | + | Ni (1,10-phen) (BMIIMP) (H2O)2Cl | +++ | + | + | − | MIIBD | + | + | + | + | Ni (MIIBD)2 (H2O)2 | ++ | + | + | − | Ni (1,10-phen) (MIIBD) (H2O)2Cl | ++ | +++ | + | + | Gentamycin | ++ | ++ | − | − |
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Highly active: +++ (inhibition zone > 15 mm); moderatively active: ++ (inhibition zone > 10 mm); slightly active: + (inhibition zone > 5 mm); inactive: − (inhibition zone < 5 mm ).
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