Abstract
Recent advancements in developing the most suitable drug for humankind to cure cancer have paved the way to synthesize an alternative to platinum-based drugs. Herein, the synthesis of novel polymeric complex [Zn(thot)2]n (1) derived from potassium 5-thiophen-2-yl-[1,3,4]-oxadiazole-2-thiolate (Kthot) is reported. The synthesized ligand and complex were characterized by infrared, NMR, Mass and UV–vis. spectrometry. Moreover, single-crystal X-ray analysis revealed the polymeric nature of the [Zn(thot)2]n (1). Complex 1 is stabilized via various types of intermolecular interactions. The intermolecular interaction found in complex 1 was further investigated through Hirshfeld surface analysis. Emission spectra data showed that complex [Zn(thot)2]n (1) exhibits higher fluorescent intensity than Kthot. The cytotoxicity of complex 1 and Kthot was evaluated against MDA-MB-231 breast cancer cells, which was determined by measuring mitochondrial dehydrogenase activity using MTT as substrate. The result showed that they both suppressed the viability of cancer cells. Moreover, complex 1 was found to be more effective than ligand salt Kthot. The IC50 value for complex 1 was found around 37.43 μM whereas for Kthot it is 69.24 μM which suggests that complex 1 reduces the cell viability more effectively in comparison to the ligand salt.
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