Acta Cryst. (2007). E63, i143  [ doi:10.1107/S1600536807024798 ]

Nd₃Mo₄SiO₁₄

P. Gougeon and P. Gall

Abstract: The title compound, trineodymium silicotetramolybdate, is isotypic with La₃Mo₄SiO₁₄. The crystal structure contains ribbons made of chains of triangular Mo₃O₁₃ units and chains of edge-sharing MoO₆ octahedra. The ribbons are separated from each other by the Nd³⁺ and Si⁴⁺ cations. The three distinct Nd³⁺ cations are surrounded by eight to ten O atoms, and the Si⁴⁺ is tetrahedrally coordinated. Except for two Mo and four O sites, all other sites (three Nd, one Mo, one Si and six O) are located on mirror planes.

Online 26 May 2007

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