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Synthesis, Structures and Magnetic Properties of a Family of One-Dimensional Oxides

Published online by Cambridge University Press:  15 February 2011

H.-C. Zur Loye ,
P. Núñez  and
M. A. Rzeznik
H.-C. Zur Loye
Affiliation:
Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, SC 29208, hanno@psc.sc.edu
P. Núñez
Affiliation:
Departamento de Química Inorgánica, Universidad de La Laguna, E-38200 La Laguna, Tenerife (Spain).
M. A. Rzeznik
Affiliation:
Department of Chemistry, MIT, Cambridge, MA 02139.
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Abstract

The one-dimensional compounds Sr3MgPtO6, Sr3MgIrO6, Sr3MgRhO6, Sr3GdRhO6, have been synthesized and structurally characterized by Rietveld refinement of powder X-ray diffraction data. All four compounds are isostructural with the rhombohedral K4CdCl6-type structure. The structure consists of infinite one-dimensional chains of alternating face-shared MO6 octahedra (M = Pt, Ir, Rh) and M′O6 (M′ = Gd, Mg) trigonal prisms. The strontium cations are located in a distorted square antiprismatic environment. Magnetic susceptibility data show that both Sr3MgIrO6 and Sr3MgRhO6 obey the Curie-Weiss law with θ = −6(1) K, and θ= −15(3)K, respectively. Sr3GdRhO6 obeys the Curie law with μeff = 7.80 B.M, consistent with an oxidation state of +3 for both rhodium and gadolinium.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 379
Copyright
Copyright © Materials Research Society 1997

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References

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