Full Paper
Synthesis and structural investigations on R2 Sn(IV)-D-aldonic acid complexes (R = methyl; butyl). Their effect on a new toxicity test organism, Liza saliens (Osteichthyes, Mugilidae): a histological study
Article first published online: 28 MAY 2008
DOI: 10.1002/aoc.1412
Copyright © 2008 John Wiley & Sons, Ltd.
Additional Information
How to Cite
Bertazzi, N., Casella, G., D'Agati, P., Fiore, T., Mansueto, C., Mansueto, V., Pellerito, C., Pellerito, L. and Scopelliti, M. (2008), Synthesis and structural investigations on R2 Sn(IV)-D-aldonic acid complexes (R = methyl; butyl). Their effect on a new toxicity test organism, Liza saliens (Osteichthyes, Mugilidae): a histological study. Applied Organometallic Chemistry, 22: 389–396. doi: 10.1002/aoc.1412
Publication History
- Issue published online: 28 MAY 2008
- Article first published online: 28 MAY 2008
- Manuscript Revised: 20 MAR 2008
- Manuscript Accepted: 20 MAR 2008
- Manuscript Received: 18 DEC 2007
Funded by
- Ministero dell'Istruzione, dell'Università e della Ricerca. Grant Number: CIP 2004059078_003
- Università di Palermo. Grant Number: ORPA06K3RK
Keywords:
- organotin(IV);
- carbohydrates;
- toxicity;
- Liza saliens;
- histopathology;
- Mössbauer;
- FT-IR;
- NMR
Graphical Abstract

In the R2Sn(IV)-D-aldonate complexes [(R = Me, Bu; D-aldonate = D-Galactonate2− (Galn), D-Gluconate2− (Glun), D-Gulonate2− (Guln), D-Ribonate2− (Ribn)], the ligands behave as dianionic bidentate agents. For the water-soluble Me2SnGalactonate and Me2SnGluconate, in water solution 1H, 13C and 119Sn NMR spectroscopy allowed elucidation of the structure of the occurring species, showing that the chelation is attained via carboxylate group and the alternate coordination between O2 and O4 alkoxydic oxygens. For Me2SnGluconate self-association was also observed.
Abstract
Eight R2Sn(IV)-D-aldonate complexes [(R = Me, Bu; D-aldonate = D-galactonate2− (Galn), D-Gluconate2− (Glun), D-Gulonate2− (Guln), D-Ribonate2− (Ribn)], five of which are new derivatives, have been synthesized and structurally characterized both in solid and solution state by IR, 119Sn Mössbauer and 1H, 13C, 119Sn NMR spectroscopies, showing that ligands act as dianonic chelating agents. In solution phase, NMR data suggest that the bidentate chelation is attained by the O1 carboxylate and the vicinal O2 alkoxide atoms, which can be dynamically extended to a third binding site (O4) competing with O2. In Me2Sn(IV)-D-gluconate complex the occurrence of a self-association process leading to a dimeric species was also observed. Histopathological studies on different organs of Liza saliens showed that the dibutyltin(IV)-D-aldonate complexes, although preserving the defense immunity system, exhibit a specific toxicity on some target cells and organs. The toxicity of such complexes has been compared with respect to the effects of a previous study with tributyltin(IV) chloride solutions. Copyright © 2008 John Wiley & Sons, Ltd.

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