NMR and Mössbauer characterization of tin(II)-tin(IV)-sodium phosphate glasses

Emilie Bekaert (1) , Lionel Montagne (1) , Laurent Delevoye (1) , Gérard Palavit (1) , Alain Wattiaux (2)

1 LCPS - Laboratoire de cristallochimie et physicochimie du solide
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

xSnO–(100 − x)NaPO3 glasses were prepared under argon atmosphere for 0 < x < 40. Wet chemical analyses and Mössbauer spectroscopy indicate the presence of Sn(II) and Sn(IV) in the glasses, with a majority of Sn(II). 119Sn NMR and Mössbauer spectra show that the local environment of Sn(II) are characteristic of SnO in network forming sites. The 119Sn NMR spectrum of an oxidized glass shows that Sn(IV) are located in sites similar to SnP2O7.

Mots clés: Nuclear magnetic resonance; Mössbauer spectroscopy; Tin; Sodium; Phosphate; Glasses

Domaines: Matériaux

Emilie Bekaert, Lionel Montagne, Laurent Delevoye, Gérard Palavit, Alain Wattiaux. NMR and Mössbauer characterization of tin(II)-tin(IV)-sodium phosphate glasses. Journal of Non-Crystalline Solids, 2004, 345-346, pp.70-74. ⟨10.1016/j.jnoncrysol.2004.07.070⟩. ⟨hal-00155183⟩