Syntheses and structures of copper complexes of tetradentate enaminones derived from condensation of benzoylacetone and ferrocenoylacetone with 1,2- bis (2-aminophenoxy)ethane |
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Abstract: | Reaction of 1,2-bis(2-aminophenoxy)ethane with benzoylacetone and ferrocenoylacetone yields tetradentate enaminones H2L1 and H2L2, respectively. Reaction of copper acetate with two enaminones affords the corresponding complexes 1 and 2, which are formulated as L1Cu] and L2Cu], respectively. The structures of H2L1, H2L2 and 1 have been determined by single-crystal X-ray crystallography. Enaminone H2L1 crystallizes with Z = 4 in space group C2/c, the molecule of which lies on a C 2 axis. Enaminone H2L2 crystallizes with Z = 2 in space group P21/c, the molecule of which possesses a symmetric center. For complex 1, which crystallizes in space group P 1, H2L1 is a bianionic tetradentate donor via two carbonyl oxygens and two deprotonated enamine nitrogens; the coordination geometry of copper(II) is a distorted tetrahedron. |
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Keywords: | β-Diketone Enaminone Complex Copper X-ray crystallography |
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