Acta Cryst. (2002). E58, i127-i129  [ doi:10.1107/S160053680202161X ]

Cd₃Se₃O₁₀, isotypic with its mercury analogue

M. Weil

Abstract: The mixed-valent Se^IV/VI compound tricadmium(II) bis-[selenite(IV)] selenate(VI), Cd₃(SeO₃)₂SeO₄, contains three crystallographically inequivalent Cd^II cations, one Se^VIO₄ tetrahedron and two independent Se^IVO₃ pyramids corresponding to the formula Cd₃(SeO₃)₂(SeO₄). The structure is composed of a three-dimensional network with channels extending parallel to the b axis. Distances and angles within the three [CdO_x] polyhedra (x = 6, 8), as well as within the anionic framework, deviate only slightly from those of the isotypic mercury analogue, Hg₃Se₃O₁₀.

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