Resumen

TELEB, S.M.. Spectral and thermal studies ofsaccharinato complexes. An. Asoc. Quím. Argent. [online]. 2004, vol.92, n.4-6, pp.31-40. ISSN 0365-0375.

The saccharinato complexes of Au(III), ZrO(II), VO(II) and UO2(II) metal ions have been prepared and the coordination of saccharin in these complexes has been investigated through their 1HNMR and IR spectra as well as by thermal analysis. It was found that saccharin interacts with all of these metal ions in the anionic form and coordinates in a monodentate fashion through its nitrogen to Au(III), ZrO(II) and VO(II) ions, whereas it coordinates to UO2(II) ion as a bidentate ligand using its carbonyl and sulphonyl groups. A square structure has been proposed for Au(III) complexes, polymeric chain structures for ZrO(II) and VO(II) complexes and an octahedral structure for UO2-saccharin complex. The thermal properties of these complexes were shown to be consistent with the proposed structures and indicate that metallic gold, ZrO2, V2O5 and UO2SO4 are obtained as final thermal decomposition products of these complexes.

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