Structural Expansion of Chalcogenido Tetrelates in Ionic Liquids by Incorporation of Sulfido Antimonate Units.

Multinary chalcogenido (semi)metalate salts exhibit finely tunable optical properties based on the combination of metal and chalcogenide ions in their polyanionic substructure. Here, we present the structural expansion of chalcogenido germanate(IV) or stannate(IV) architectures with Sb , which clearly affects the vibrational and optical absorption properties of the solid compounds. For the synthesis of the title compounds, [K (H O) ][Ge S ] or [K (H O) ][SnS ] were reacted with SbCl under ionothermal conditions in imidazolium-based ionic liquids.