Acta Cryst. (2006). E62, i266-i268  [ doi:10.1107/S1600536806036737 ]

Na₃Sc₂(BO₃)₃

Y. Zhang, N. Ye and D. A. Keszler

Abstract: Single crystals of trisodium discandium trisborate have been grown by slowly cooling a NaBO₂-containing melt from 1273 K to room temperature. The title compound adopts a new structure type and contains distorted ScO₆ octahedra, NaO₈ polyhedra and triangular BO₃ groups as simple building units. Two ScO₆ octahedra share triangular faces along the c axis, forming an [Sc₂O₉] dimer. By sharing corners and edges with the other building units, the three-dimensional framework is accomplished. All atoms except O1 are in special positions: Sc (site symmetry 3.), Na (.2), O2 (.2) and B (.2).

Online 24 November 2006

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