Ultrasonic assisted synthesis, crystallographic, spectroscopic studies and biological activity of three new Zn(II), Co(II) and Ni(II) thiosemicarbazone complexes as precursors for nano-metal oxides

[Display omitted] •New Zn(II), Co(II) and Ni(II) thiosemicarbazone complexes have been synthesized.•The direct thermolysis of thiosemicarbazone complexes led to nano-sized metal oxides.•The in vitro antibacterial activities were studied. Using ultrasonic irradiations, three new complexes of type [Zn...

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