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XAFS study of bioactive Cu(II) complexes of 7-hydroxycoumarin derivatives in organic solvents

Abstract : We characterize the structure of two Cu(II) complexes of 7-hydroxycoumarins in organic solvents. The solvents are, dimethyl sulfoxide and dimethylformamide. X-ray absorption spectroscopy together with density functional theory calculations are employed to identify the structural changes induced by the two solvents in comparison to the solid form of complexes. We show that the structure of the Cu(II) complexes is modified depending on the solvent and we propose the geometry of the complexes molecule.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01484633
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Submitted on : Tuesday, July 4, 2017 - 2:13:03 PM
Last modification on : Tuesday, October 13, 2020 - 5:22:02 PM
Long-term archiving on: : Thursday, December 14, 2017 - 9:46:38 PM

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M.T. Klepka, A. Wolska, A. Drzewiecka-Antonik, P. Rejmak, Keisuke Hatada, et al.. XAFS study of bioactive Cu(II) complexes of 7-hydroxycoumarin derivatives in organic solvents. Chemical Physics Letters, Elsevier, 2017, 673, pp.113-117. ⟨10.1016/j.cplett.2017.02.025⟩. ⟨hal-01484633⟩

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