Preparation,spectral, thermal,and biological properties of zinc(II) 4-chloro- and 5-chlorosalicylate complexes with methyl 3-pyridylcarbamate and phenazone |
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Authors: | Zuzana Bujdošová Katarína Györyová Daniela Hudecová Jana Kovářová Ladislav Halás |
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Institution: | 1.Department of Inorganic Chemistry,P. J. ?afárik University,Ko?ice,Slovakia;2.Department of Biochemistry and Microbiology,Slovak University of Technology,Bratislava,Slovakia;3.Institute of Macromolecular Chemistry,Academy of Sciences of the Czech Republic,Prague 6,Czech Republic |
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Abstract: | New zinc(II) 4-chloro- and 5-chlorosalicylate complex compounds of the general formula ((4- or 5-Cl)C6H3(2-OH)COO)2Zn · L
n
(where L = methyl 3-pyridylcarbamate, phenazone; n = 2, 4) were prepared and characterized by elemental analysis, thermal analysis (TG/DTG, DTA), and IR spectroscopy. During
thermal decomposition, mpc, phen, chlorosalicylic acid, chlorophenol, carbon dioxide, and carbon monoxide were released. Volatile
products of the thermal decomposition were confirmed by mass spectrometry. The final solid product of the thermal decomposition
up to 700°C was zinc oxide or metallic zinc. Antimicrobial activity of the compounds prepared was tested against various strains
of bacteria, yeasts and filamentous fungi. The highest antimicrobial effect was determined against the G+ bacteria S. aureus. |
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