Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 9 (September 2004)

Acta Cryst. (2004). C60, i91-i93    [doi:10.1107/S0108270104016105]

Powder neutron diffraction of SrNbO₂N at room temperature and 1.5  K

S. G. Ebbinghaus, A. Weidenkaff, A. Rachel and A. Reller

Abstract: The structure of strontium niobium dioxygen nitride, SrNbO₂N, has been solved by powder neutron diffraction at room temperature and 1.5  K. SrNbO₂N crystallizes in the tetragonal space group I4/mcm, with a = 5.7056  (4) and c = 8.1002  (9)  Å at room temperature, and a = 5.6938  (4) and c = 8.0974  (8)  Å at 1.5  K. The crystal structure is derived from the cubic perovskite archetype by a slight rotation of the Nb(O,N)₆ octahedra with respect to the tetragonal axis. A partially ordered distribution of oxygen and nitrogen on the anionic sites was found.

Formula: SrNbO₂N

Online 21 August 2004

	Rietveld powder data file (CIF format) (68.8 kbytes) Contains datablock profile
	Rietveld powder data file (CIF format) (68.7 kbytes) Contains datablock profile

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