NEW COMPOUNDS CONTAINING THE COMPLEX ANION [TA2S11](4-) A(4)TA(2)S(11) (A = RB, CS)

Authors
DURICHEN P BENSCH W
Citation
P. Durichen et W. Bensch, NEW COMPOUNDS CONTAINING THE COMPLEX ANION [TA2S11](4-) A(4)TA(2)S(11) (A = RB, CS), Acta crystallographica. Section C, Crystal structure communications, 54, 1998, pp. 706-708
Citations number
19
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
54
Year of publication
1998
Part
6
Pages
706 - 708
Database
ISI
SICI code
0108-2701(1998)54:<706:NCCTCA>2.0.ZU;2-C
Abstract
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 metho d. The crystal structures consist of well separated A(+) and [Ta2S11]( 4-) ions. Within the anions, the Ta atoms display a sevenfold coordina tion by S-2(2-) units and S2- anions; the coordination polyhedra can b e described as distorted pentagonal bipyramids. Two such bipyramids sh are common faces, thus forming the [Ta2S11](4-) anion.