Coordination compounds of copper with 2-formylpyridine 4-(dimethylphenyl)thiosemicarbazones
摘要:
2-Formylpyridine 4-(2,6-dimethylphenyl)-(HL1), 4-(2,5-dimethylphenyl)-(HL2), 4-(3,4-dimethylphenyl)-(HL3), and 4-(2,4-dimethylphenyl)thiosemicarbazones (HL4) react with copper chloride and nitrate to form coordination compounds CuL1-4X center dot nH(2)O [X = Cl-, NO (3) (-) ; n = 1, 2]. All compounds have a polynuclear structure. Azomethines HL1-4 act as the bridging monodeprotonated tridentate N,N,S-ligands. The thermolysis of the complexes includes the dehydration (70-90A degrees C) and total thermal decomposition (350-520A degrees C). The complexes synthesized exhibit a selective antimicrobial activity against a series of standard strains of Staphylococcus aureus and Escherichia coli in the concentration range of 0.009-37.5 mu g ml(-1).