Inorganic Chemistry, Vol.50, No.3, 956-960, 2011
Yttrium(III)-Containing Tungstoantimonate(III) Stabilized by Tetrahedral WO42- Capping Unit, [{Y(alpha-SbW9O31(OH)(2))(CH3COO)(H2O)}(3)(WO4)](17-)
The yttrium(III)-containing tungstoantimonate(III) [{Y(alpha-SbW9O31(OH)(2))(CH3COO)(H2O)}(3)(WO4)](17-) (1) has been synthesized in a simple one-pot reaction of Y3+ ions with [alpha-SbW9O33](9-) and WO42- in a 3:3:1 molar ratio in 1 M LiOAc/AcOH buffer at pH 5.3. Polyanion 1 is composed of three (alpha-SbW9O33) units linked by three Y3+ ions and a capping, tetrahedral WO42- capping unit, resulting in an assembly with C-3v symmetry. The hydrated ammonium-sodium salt of 1 was investigated in the solid state by single-crystal XRD, FT-IR spectroscopy, thermogravimetric and elemental analyses, and in solution by multinuclear NMR spectroscopy.