Yttrium(III)-Containing Tungstoantimonate(III) Stabilized by Tetrahedral WO<sub>4</sub><sup>2−</sup> Capping Unit, [{Y(<i>α-</i>SbW<sub>9</sub>O<sub>31</sub>(OH)<sub>2</sub>)(CH<sub>3</sub>COO)(H<sub>2</sub>O)}<sub>3</sub>(WO<sub>4</sub>)]<sup>17−</sup>
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The yttrium(III)-containing tungstoantimonate(III) [{Y(α-SbW9O31(OH)2)(CH3COO)(H2O)}3(WO4)]17− (1) has been synthesized in a simple one-pot reaction of Y3+ ions with [α-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 (α-SbW9O33) units linked by three Y3+ ions and a capping, tetrahedral WO42− capping unit, resulting in an assembly with C3v 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.
创建时间：
2011-02-07
