Abstract
Two new copper(II) complexes based on 6/8-acetyl-3,8/6-dibromo-7-hydroxy-4-methylcoumarin have been synthesized and structurally characterized. The electrochemical synthesis has been applied to enforce the complexation reaction. Characterization of non-crystalline product have been performed using methodology based on X-ray absorption spectroscopy. Both compounds have square planar geometry with four oxygen atoms in the nearest distance to the copper(II) ion. The hydroxycoumarin ligands coordinate to the cooper(II) either in bidentate or monodentate manner depending on the acetyl group position in the coumarin ring. The complexes have been evaluated from microbiological and cytotoxic point of view, but no significant activity has been found.
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