Sandwich-Type Zinc-Containing Polyoxometalates with a Hexaprismane Core [{Zn<sub>2</sub>W(O)O<sub>3</sub>}<sub>2</sub>]<sup>4+</sup> Synthesized by Thermally Induced Isomerization of a Metastable Polyoxometalate
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Two novel sandwich-type silicotungstates, TBA8[{Zn2W(O)O3}2H4{α-SiW9O33}2]·5H2O (α-Zn4; TBA = tetra-n-butylammonium) and TBA8[{Zn2W(O)O3}2H4{β-SiW9O33}2]·7H2O (β-Zn4), were synthesized by the solid-state thermally induced isomerization of metastable TBA8[{Zn(OH2)(μ3-OH)}2{Zn(OH2)2}2{γ-HSiW10O36}2]·9H2O (γ-Zn4). Compounds α-Zn4 and β-Zn4 consisted of two [SiW9O33]8− subunits sandwiching the unprecedented distorted hexaprismane core [{Zn2W(O)O3}2]4+.
创建时间：
2010-09-20
