Crystal structure of an oxygen deficient strontium cobaltate, Sr6Co5O14.3
2009
The crystal structure of Sr 6 Co s O 14.3 has been analyzed by X-ray diffraction of a c-axis elongated prismatic single crystal grown by a flux method. Sr 6 Co 5 O 14.3 is an oxygen deficient phase of Sr 6 Co 5 O 15 that contains one-dimensional columns of Co-O octahedra and triangular prisms. Oxygen defects are preferentially introduced in an O site shared by the Co-O triangular prism and octahedron in the structure of Sr 6 Co 5 O 15 . The average structure of Sr 6 Co s O 14.3 is refined by splitting the oxygen defect site with the rhombohedral space group R3 (a = 9.4334(6) A and c = 12.5156(6)A).
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