Organotin(IV) carboxylates of (E)-3-(2-nitrophenyl) propenoic acid: Synthesis, spectroscopic characterization, crystal structure and antitumor activity

► Di- and tri-organotin carboxylates are synthesized. ► We report their structural characterization and antitumor activities. ► CH⋯π stacking and CH⋯O interaction stabilize the molecular structures. ► Triorganotin carboxylate displays a higher biological activity.