Synthesis,spectroscopic characterization and antibacterial activity of lanthanide–tetracycline complexes |
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| Authors: | Karthikeyan Gopalakrishnan Mohanraj Kuttappan Elango Kuppanagounder P. Girishkumar Krishnapillai |
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| Affiliation: | (1) Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram, 624 302, India;(2) Department of Applied Chemistry, Cochin University of Science and Technology, Cochin, 682 022, India |
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| Abstract: | A series of LnIII–tetracycline complexes of the type [Ln(TC)Cl3]·2H2O [Ln = lanthanum, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium and yttrium; TC = tetracycline] have been synthesized and characterized by analytical, i.r., electronic, 1H-n.m.r. spectral studies, X-ray diffraction and thermogravimetric analysis. A pentagonal bipyramidal structure has been tentatively proposed for the new complexes. The ligand and the new complexes were tested in vitro to evaluate their activity against the bacteria Escherichia coli and Staphylococcus aureus. |
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