Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 9 (September 2007)

inorganic compounds

Acta Cryst. (2007). C63, i80-i82 [ doi:10.1107/S0108270107037353 ]

Rhombohedral boron subnitride, B₁₃N₂, by X-ray powder diffraction

O. O. Kurakevych and V. L. Solozhenko

Abstract: The structure of the title compound consists of distorted B₁₂ icosahedra linked by N-B-N chains. The compound crystallizes in the rhombohedral space group R $\overline{3}$ m (No. 166). The unit cell contains four symmetry-independent atom sites, three of which are occupied by boron [in the 18h, 18h (site symmetry m) and 3b (site symmetry $\overline{3}$ m) Wyckoff positions] and one by nitrogen (in the 6c Wyckoff position, site symmetry 3m). Two of the B atoms form the icosahedra, while N atoms link the icosahedra together. The main feature of the structure is that the 3b position is occupied by the B atom, which makes the structure different from those of B₆O, for which these atom sites are vacant, and B_4+xC_1-x, for which this position is randomly occupied by both B and C atoms.

Formula: B₁₃N₂


	Structure factor file (CIF format) (2.2 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_1sup2.hkl ] Contains datablock phase_1

	Structure factor file (CIF format) (21.6 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_2sup3.hkl ] Contains datablock phase_2

	Structure factor file (CIF format) (21.6 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_3sup4.hkl ] Contains datablock phase_3

	Structure factor file (CIF format) (21.6 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_4sup5.hkl ] Contains datablock phase_4

	Structure factor file (CIF format) (21.6 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_5sup6.hkl ] Contains datablock phase_5

	Structure factor file (CIF format) (21.6 kbytes) [ doi:10.1107/S0108270107037353/sq3084phase_6sup7.hkl ] Contains datablock phase_6

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