New complexes of zinc(ii) and copper(ii) with 2-furoic acid (Hfur), acetic acids and N-donor ligands with the compositions [Zn2(fur)4]n, [Zn2(fur)4(NH2py)2], [Zn(fur)2(neoc)], [Zn(OAc)2(neoc)], and [Cu(fur)2(neoc)(H2O)] were synthesized.
Using the reactions of copper(II) acetate magnesium(II) oxide with 2-furancarboxylic acid (HFur), compounds with chemical compositions [Cu 2 (Fur) 4 (MeCN) 2 ] (I) and [Mg 2 (Fur) According to the X-ray diffraction data (CIF files CCDC nos. 2085817 (I) and 2085818 (II)), both complexes have a binuclear structure. The metal core of I correspond to the tetracarboxylate bridged {Cu 2 (μ-Fur) 4 } complex, the coordination number of the copper atom in which is 5 (CuNO 4 ); in II, the metal atoms are linked by two carboxylate groups and a water molecule, and the coordination environment of the metal centers is completed to the polyhedron (MgO 6 ) by oxygen atoms of the Furanions and water molecules. According to EPR spectroscopy data, exchange-coupled copper(II) dimers with a substantial zero-field splitting are observed in I. For I and II, antibacterial activity against the nonpathogenic strain of M. smegmatis, and cytotoxicity against human ovarian adenocarcinoma cells SCOV3 and normal human fibroblast cells of the HDF line have been determined.
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