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Molecules 2013, 18(7), 7631-7645; doi:10.3390/molecules18077631
Article

Synthesis and Characterization of Some New Complexes of Magnesium (II) and Zinc (II) with the Natural Flavonoid Primuletin

1,* , 2,†
, 2,†
, 3,†
 and 4
1 Department of General and Inorganic Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia St, Bucharest 020956, Romania 2 Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri St., Bucharest 050663, Romania 3 Center of Organic Chemistry C.D. Nenitzescu, Romanian Academy, 202 B Splaiul Independenţei, Bucharest 060023, Romania 4 Department of Organic Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia St, Bucharest 020956, Romania These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 20 May 2013 / Revised: 17 June 2013 / Accepted: 19 June 2013 / Published: 1 July 2013
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Abstract

Two new metal complexes formulated as [Mg(L)2(H2O)2]·H2O (1) and [Zn(L)2(H2O)2]·0.5H2O (2), where HL = 5-hydroxyflavone (primuletin), have been synthesized and characterized by elemental and thermal analyses, molar conductance, IR, UV-Vis, 1H- and 13C-NMR, fluorescence and mass spectra. In solid state, complexes had shown higher fluorescence intensities comparing to the free ligand, and this behavior is appreciated as a consequence of the coordination process.
Keywords: 5-hydroxyflavone (primuletin); Mg(II) and Zn(II) complexes; spectral properties; thermal behavior 5-hydroxyflavone (primuletin); Mg(II) and Zn(II) complexes; spectral properties; thermal behavior
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Uivarosi, V.; Badea, M.; Olar, R.; Drǎghici, C.; Bǎrbuceanu, Ş.F. Synthesis and Characterization of Some New Complexes of Magnesium (II) and Zinc (II) with the Natural Flavonoid Primuletin. Molecules 2013, 18, 7631-7645.

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