(Pentane‐2,4‐dionato‐κ2O,O′)(pyridin‐2‐amine‐κN1)copper(II) and (pentane‐2,4‐dionato‐κ2O,O′)(pyrimidin‐2‐amine‐κN1)copper(II)

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The title compounds, [Cu(C5H7O2)2(C5H6N2)], (I), and [Cu(C5H7O2)2(C4H5N3)], (II), were prepared by the reaction of bis(pentane‐2,4‐dionato‐κ2 O,O′)copper(II) with pyridin‐2‐amine and pyrimidin‐2‐amine, respectively. From a chemical point of view, it is interesting that no Schiff base formation was observed. The compounds are isostructural, with both having a square‐pyramidal coordination of the CuII atom and intramolecular N—H...O hydrogen bonding. The additional N atom of the pyrimidin‐2‐amine ligand is not involved in hydrogen bonding or in metal coordination. In the crystal structure, chelate rings are involved in π–π interactions and molecules of (I) are linked together via N—H...O hydrogen bonds.

Document Type: Research Article

DOI: http://dx.doi.org/10.1107/S0108270112004386

Affiliations: Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva¬†5, PO Box 537, SI-1000 Ljubljana, Slovenia, and CO EN–FIST, Dunajska 156, SI-1000 Ljubljana, Slovenia

Publication date: March 15, 2012

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