Acta Cryst. (2007). E63, i56-i58  [ doi:10.1107/S1600536807002656 ]

Rietveld refinement of the Tutton's salt Rb₂[Cu(H₂O)₆](SO₄)₂ from parallel-beam X-ray powder diffraction data

P. Ballirano and G. Belardi

Abstract: Dirubidium hexaaquacopper(II bis(sulfate), Rb₂[Cu(H₂O)₆](SO₄)₂, is characterized by a <Cu-O> distance of 2.098 (136) Å. The Cu(H₂O)₆ octahedron is strongly distorted because of the Jahn-Teller effect. Rb is eightfold-coordinated by six O atoms and two water molecules with an <Rb-O> distance of 3.055 (74) Å.

Online 26 January 2007

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