Structure Determination of Ba₈CoRh₆O₂₁, a New Member of the 2H-Perovskite Related Oxides

Author(s)

Hans Conrad zur Loye, University of South Carolina - ColumbiaFollow
M. D. Smith, University of South Carolina - Columbia
K. E. Stitzer, University of South Carolina - Columbia
A. El Abed, Institut de Chimie de la Matière Condensée de BordeauxFollow
J. Darriet, Institut de Chimie de la Matière Condensée de Bordeaux

Document Type

Conference Proceeding

Subject Area(s)

Chemistry

Abstract

Single crystals of Ba₈CoRh₆O₂₁ were grown out of a potassium carbonate flux. The structure was solved by a general method using the superspace group approach. The superspace group employed was R3m(00γ)0s with a = 10.0431(1) Å, c₁ = 2.5946(1) Å and c₂ = 4.5405(1) Å, V = 226.60(1) ų. Ba₈CoRh₆O₂₁ represents the first example of an m = 5, n = 3 member of the A_3n+3mA'_nB_3m+nO_9m+6n family of 2H hexagonal perovskite related oxides and contains chains consisting of six consecutive RhO₆ octahedra followed by one distorted CoO₆ trigonal prism. These chains in turn are separated from each other by [Ba]_∞ chains.

Publication Info

MRS Proceedings, Volume 658, 2001.

MRS Proceedings (2000), 658: GG1.4

Copyright © Materials Research Society 2001

DOI: 10.1557/PROC-658-GG1.4

Published online by Cambridge University Press: 18 March 2011

Publisher's Version: http://journals.cambridge.org/abstract_S1946427400620006

Rights

MRS Proceedings (2000), 658: GG1.4

Copyright © Materials Research Society 2001

DOI: 10.1557/PROC-658-GG1.4

Published online by Cambridge University Press: 18 March 2011

Publisher's Version: http://journals.cambridge.org/abstract_S1946427400620006