H, Si and Sn double and triple resonance NMR spectroscopy of the small-pore framework sodium stannosilicate NaSnSiO·2HO.

The small-pore framework sodium stannosilicate AV-10, chemical composition NaSnSiO·2HO and known crystallographic structure, was synthesized by hydrothermal crystallization. This stannosilicate is built up of a three-dimensional network of corner-shared SiO tetrahedra and SnO octahedra. The SnO sites are linked to six SiO tetrahedra (Sn(6Si)) while each of the two crystallographically different SiO units are connected to two SnO and SiO units (Si(2Si,2Sn)).