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https://doi.org/10.5562/cca3334

Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity

Emira Kahrović ; Department of Chemistry, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, BA-71000 Sarajevo, Bosnia and Herzegovina
Adnan Zahirović ; Department of Chemistry, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, BA-71000 Sarajevo, Bosnia and Herzegovina
Aleksandar Višnjevac ; Laboratory for Chemical and Biological Crystallography, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
Irnesa Osmanković ; Department of Chemistry, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, BA-71000 Sarajevo, Bosnia and Herzegovina
Emir Turkušić ; Department of Chemistry, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, BA-71000 Sarajevo, Bosnia and Herzegovina
Harun Kurtagić ; Federal Institute of Agriculture, Butmirska cesta 40, BA-71000 Sarajevo, Bosnia and Herzegovina

Puni tekst: engleski, pdf (16 MB) str. 195-207 preuzimanja: 237* citiraj
APA 6th Edition
Kahrović, E., Zahirović, A., Višnjevac, A., Osmanković, I., Turkušić, E. i Kurtagić, H. (2018). Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity. Croatica Chemica Acta, 91 (2), 195-207. https://doi.org/10.5562/cca3334
MLA 8th Edition
Kahrović, Emira, et al. "Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity." Croatica Chemica Acta, vol. 91, br. 2, 2018, str. 195-207. https://doi.org/10.5562/cca3334. Citirano 24.08.2019.
Chicago 17th Edition
Kahrović, Emira, Adnan Zahirović, Aleksandar Višnjevac, Irnesa Osmanković, Emir Turkušić i Harun Kurtagić. "Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity." Croatica Chemica Acta 91, br. 2 (2018): 195-207. https://doi.org/10.5562/cca3334
Harvard
Kahrović, E., et al. (2018). 'Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity', Croatica Chemica Acta, 91(2), str. 195-207. https://doi.org/10.5562/cca3334
Vancouver
Kahrović E, Zahirović A, Višnjevac A, Osmanković I, Turkušić E, Kurtagić H. Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity. Croatica Chemica Acta [Internet]. 2018 [pristupljeno 24.08.2019.];91(2):195-207. https://doi.org/10.5562/cca3334
IEEE
E. Kahrović, A. Zahirović, A. Višnjevac, I. Osmanković, E. Turkušić i H. Kurtagić, "Chalcone and Flavonol Copper(II) Complexes Containing Schiff Base Co-Ligand: Synthesis, Crystal Structures and Catecholase-like Activity", Croatica Chemica Acta, vol.91, br. 2, str. 195-207, 2018. [Online]. https://doi.org/10.5562/cca3334

Sažetak
Four new heteroleptic copper(II) complexes having chalcone or flavonol ligands and Schiff base (N-phenyl-5-chlorosalicylideneimine) as co-ligand were prepared, chemically and structurally characterized and investigated as functional biomimetic catecholase models. The complexes were prepared by the solution synthesis and crystal and molecular structures were determined by X-ray diffraction. Complexes were chemically characterized by elemental analysis, infrared and electronic absorption spectroscopy as well as by electrochemical measurements. Copper(II) chalcone complexes, with square-pyramidal CuO4N core, are binuclear, featuring phenolate oxygen from the Schiff base as a bridging atom, while copper(II) flavonol complexes are mononuclear, and reveal a square planar CuO3N coordination core. Catalytic activity of the complexes in 3,5-di-tert-butylcatechol oxidation was confirmed by spectrophotometric and electrochemical measurements. Kinetic measurements revealed that the binuclear (chalcone-containing) complexes have enhanced catalytic activity as compared to the mononuclear Cu(II) flavonol complexes. Relatively high kcat values (300 – 750 h–1) confirmed their respectable biomimetic catecholase-like activity.

Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi
copper; Schiff base; chalcone; flavonol; catecholase activity

Hrčak ID: 202087

URI
https://hrcak.srce.hr/202087

Posjeta: 371 *