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Acta Cryst. (2009). E65, i88 [ doi:10.1107/S1600536809046431 ]
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4O:O'-bis[cis-dioxido-cis-disulfatotungstate(VI)]Abstract: The title compound, Rb8[W2O4(SO4)6], was precipitated from a melt of tungsten(VI) oxide and rubidium sulfate in rubidium disulfate. The unit cell contains two discrete [{WVIO2(SO4)2}2(-SO4)2]8- units connected by Rb-O coordination. The W atom is octahedrally surrounded by two oxide ligands, two terminal sulfate ligands and two bridging sulfate groups. One Rb atom is coordinated by eight O atoms, whereas the three other Rb atoms are coordinated by nine O atoms from sulfate and oxide groups, leading to distorted [RbOx] polyhedra.
Online 11 November 2009
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