Coordination behavior of the carboxylate group in organotin(IV) derivatives of 2-[(2′,4′,6′-tribromophenylamido)]benzoic acid and 3-[(2′,4′,6′-tribromophenylamido)]propenoic acid: Spectroscopic studies

The complexes of two organic carboxylates (containing {O,O}-donor atoms) with Me2Sn(IV)Cl2, n-Bu2Sn(IV)Cl2, Bz2Sn(IV)Cl2, Oct2Sn(IV)O, Me3Sn(IV)Cl, n-Bu3Sn(IV)Cl, Ph3Sn(IV)Cl, Ph3Sn(IV)Cl, and Bz3Sn(IV)Cl having ligand-to-metal ratios of 1: 2 and 1: 1 were prepared by two different methods. The FT-IR spectra clearly demonstrated that organotin(IV) moieties react with {O,O}-atoms of the ligands. It was found that in all cases the COO− group was...