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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 (CC BY 3.0).
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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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