Abstract

New ligands 5-((4-(3-(pyridine-4-yl)-7H-[1,2,4]triazolo[3,4-b] [1, 3,4]thiadiazine-6-yl)phenylamino)methyl)quinolin-8-ol (L1) and 5-((3-(pyridine-4-yl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-6- ylamino)methyl)quinolin-8-ol (L2) have been synthesized. The obtained ligands were characterized by 1H NMR, 13C NMR, and IR spectroscopic techniques, and reacted with transition metal salts to afford metal containing heterochelates. The structures of the synthesized heterochelates were characterized using elemental analyses, infrared spectra, electronic spectra, magnetic measurements, FAB mass spectrum, and thermo gravimetric analyses. The kinetic parameters, such as order of reaction (n) and the energy of activation (Ea), are reported using the Freeman–Carroll method. Ligands and heterochelates were also screened for their in vitro antibacterial activity.

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