Di‐ and tri‐organotin(IV) derivatives of (Z)‐3‐(4‐nitrophenyl)‐2‐phenyl‐2‐propenoic acid: spectroscopic characterization and biocidal studies. Crystal structure analysis of tetrameric tri‐n‐butyltin(IV) (Z)‐3‐(4‐nitrophenyl)‐2‐phenyl‐2‐propenoate | Publicación