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Crystal Structure of the Ordered Double Perovskite, Sr 2 NiTeO 6
Author(s) -
Martín L. OrtegaSan,
Chapman J. P.,
Cuello G.,
GonzálezCalbet J.,
Arriortua M. I.,
Rojo T.
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200570028
Subject(s) - monoclinic crystal system , perovskite (structure) , crystallography , crystal structure , octahedron , neutron diffraction , materials science , diffraction , group (periodic table) , electron diffraction , chemistry , physics , optics , organic chemistry
The crystal structure of the ordered double perovskite Sr 2 MnTeO 6 has been refined at ambient temperature from high resolution neutron and X‐ray powder diffraction data in the monoclinic space group I 1 2/m 1 with a = 5.6166(1) Å, b = 5.5807(1) Å, c = 7.8797(1) Å and β = 90.048(2)°. The structure is the result of out‐of‐phase (–) rotations of virtually undistorted NiO 6 and TeO 6 octahedra in the (0 – –) sense about two of the axes of the ideal cubic perovskite. Electron diffraction measurements have been used to confirm the proposed space group and structure.