[H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY

Müller A, PENK M, DORING J (1991)
INORGANIC CHEMISTRY 30(26): 4935-4939.

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Abstract
On reduction of an aqueous solution of vanadate(V) with thiocyanide in the presence of As(V), the black-gray mixed-valence compound K6[H3KV12As3O39(AsO4)].8H2O (1) is formed. It crystallizes in the space group C2/c with a = 39.993 (15) angstrom, b = 13.467 (4) angstrom, c = 18.209 (6) angstrom, beta = 111.52 (3)-degrees, and Z = 8. Refinement of 686 variables with 8827 observed reflections yields R = 0.049 and R(w) = 0.058. The compound contains an anion with approximate C3 symmetry, which can be described as a fragment of a sphere capped with a potassium ion. The oxygen and/or metal atoms of polyoxometalates often span the vertices of topologically and/or geometrically interesting polyhedra. Related aspects of 1 are discussed.
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Müller A, PENK M, DORING J. [H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY. INORGANIC CHEMISTRY. 1991;30(26):4935-4939.
Müller, A., PENK, M., & DORING, J. (1991). [H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY. INORGANIC CHEMISTRY, 30(26), 4935-4939.
Müller, A., PENK, M., and DORING, J. (1991). [H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY. INORGANIC CHEMISTRY 30, 4935-4939.
Müller, A., PENK, M., & DORING, J., 1991. [H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY. INORGANIC CHEMISTRY, 30(26), p 4935-4939.
A. Müller, M. PENK, and J. DORING, “[H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY”, INORGANIC CHEMISTRY, vol. 30, 1991, pp. 4935-4939.
Müller, A., PENK, M., DORING, J.: [H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY. INORGANIC CHEMISTRY. 30, 4935-4939 (1991).
Müller, Achim, PENK, M, and DORING, J. “[H3KV12AS3O39(ASO4)]6- AND RELATED TOPOLOGICAL AND OR STRUCTURAL ASPECTS OF POLYOXOMETALATE CHEMISTRY”. INORGANIC CHEMISTRY 30.26 (1991): 4935-4939.
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