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Molecules 2007, 12(4), 782-796; doi:10.3390/12040782

Complexes of 3dn Metal Ions with Thiosemicarbazones: Synthesis and Antimicrobial Activity

1
Inorganic Chemistry Department, University of Bucharest, 23 Dumbrava Rosie Street, sector 2, Bucharest, Romania
2
Faculty of Chemistry, Inorganic Chemistry Department, USM-R, Moldova
3
Organic Chemistry Department, University of Bucharest, 90 – 92 Panduri Bd., sector 4, Bucharest, Romania
4
Nuclear Physics and Engineering Institute “Horia Hulubei”, Bucharest, Romania
*
Author to whom correspondence should be addressed.
Received: 27 February 2007 / Revised: 5 April 2007 / Accepted: 12 April 2007 / Published: 17 April 2007
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Abstract

The chelating behavior of the thiosemicarbazone derivatives of 2-hydroxy-8-R-tricyclo[7.3.1.0.2,7]tridecane-13-one (where R = H, CH3, C6H5) towards Co(II), Ni(II) and Cu(II) has been investigated by elemental analysis, molar conductivity measurements, UV-VIS, IR, ESR spectroscopy and thermal studies. It was deduced from the experiments performed that the ligands coordinate to metal ions in different ways – neutral bidentate or mononegative bidentate – depending on the nature of R. Also, if metal acetates are used instead of metal chlorides, the ligands coordinate in a mononegative bidentate fashion, regardless of the nature of R or the thiosemicarbazone type ligand. The antimicrobial activity of the ligands and of the complexes towards samples of Acinetobacter boumanii, Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa was determined. View Full-Text
Keywords: Thiosemicarbazone complexes; copper complexes; thiosemicarbazones; antimicrobial activity Thiosemicarbazone complexes; copper complexes; thiosemicarbazones; antimicrobial activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Rosu, T.; Gulea, A.; Nicolae, A.; Georgescu, R. Complexes of 3dn Metal Ions with Thiosemicarbazones: Synthesis and Antimicrobial Activity. Molecules 2007, 12, 782-796.

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