New compounds containing the complex anion [Ta2S11]4-; A4Ta2S11 (A = Rb, Cs)

被引：27

作者：

Durichen, P ^{[1
]}

Bensch, W ^{[1
]}

机构：

[1] Univ Kiel, Inst Anorgan Chem, D-24098 Kiel, Germany

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1998年 / 54卷

关键词：

D O I：

10.1107/S0108270197018404

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The new tetra(alkali metal) ditantalum undecasulfides A(4)Ta(2)S(11) (A = Rb, Cs) were prepared at low temperature via the molten-flux method. The crystal structures consist of well separated A(+) and [Ta2S11](4-) ions. Within the anions, the Ta atoms display a sevenfold coordination by S-2(2-) units and S2- anions; the coordination polyhedra can be described as distorted pentagonal bipyramids. Two such bipyramids share common faces, thus forming the [Ta2S11](4-) anion.

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页码：706 / 708

页数：3

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