Acta Cryst. (2007). E63, i148  [ doi:10.1107/S1600536807024075 ]

(NH₄)₂(SO₄)_0.71(SeO₄)_0.29Te(OH)₆

M. Abdelhedi, M. Dammak, A. Cousson, M. Jérome and K. Abdelwaheb

Abstract: The main feature of the title structure, ammonium sulfate selenate tellurate, is the presence of three different chalcogenate species in the same compound. The crystal structure contains planes of SO₄/SeO₄ tetrahedra alternating with planes of Te(OH)₆ octahedra. Disordered NH₄⁺ cations are intercalated between these planes. Both octahedra and SO₄/SeO₄ tetrahedra are linked by O-HO hydrogen bonds.

Online 26 May 2007

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