In the present study, two series of thiocarbohydrazone ligands and their organotin(IV) complexes were synthesized and fully characterized. The two ligands include thiocarbohydrazone bis-2-hydroxyacetophenone (HAPTC) (1) and thiocarbohydrazone bis-2-furfural (FTC) (2) were synthesized by reacting the corresponding ketones and primary amines. Subsequently, two series of organotin(IV) complexes have been synthesized by direct reactions of RnSnCl4-n (R = Me, Bu, Ph; n = 1, 2), base and ligands (1-2) in 1:1:1 or 1:2:1 mole ratios. All ligands and their organotin(IV)complexes (3-13) have been...