Experimental biological studies of novel tetradentate hydrazone Cu(II) complexes for potential applications in medicinal chemistry


  • Cansu Topkaya Muğla Sıtkı Koçman University




heterocyclic compounds, copper (II) complexes, DNA binding, DNA cleavage


A series of mononuclear Cu(II) complexes were synthesized using a potential tetradentate hydrazone ligand obtained from the reaction between phenylhydrazine groups and 2,5-thiophenedicarboxaldehyde. The structures of ligands and complexes were elucidated through various spectroscopic techniques, confirming their composition. All complexes were found to adopt four-coordinated geometries, indicating the formation of stable structures. Spectroscopic analysis revealed that the hydrazone ligand coordinated with the Cu(II) metal ions as a dibasic tetradentate ligand by utilizing the phenolic oxygen and azomethine nitrogen atoms. The binding affinity of the complexes with calf thymus DNA (CT-DNA) was investigated using absorption and viscosity measurements, demonstrating their interaction through the intercalation mode. The binding studies showed that the Cu(II) complexes exhibited varying degrees of binding affinity, with Cu(L4) demonstrating the highest affinity, followed by Cu(L1), Cu(L2), and Cu(L3). Moreover, the DNA fragmentation properties of the Cu(II) complexes were evaluated, suggesting their potential utilization in pharmaceutical applications. The obtained results highlight the significance of these novel complexes in the field of medicinal chemistry.


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Additional Files


2024-04-22 — Updated on 2024-05-20


How to Cite

Topkaya, C. (2024). Experimental biological studies of novel tetradentate hydrazone Cu(II) complexes for potential applications in medicinal chemistry. Macedonian Journal of Chemistry and Chemical Engineering, 43(1), 127–136. https://doi.org/10.20450/mjcce.2024.2751 (Original work published April 22, 2024)



Inorganic Chemistry