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Synthesis and Characterization of Ba2Cu3PrO7−x

Published online by Cambridge University Press:  28 February 2011

J. Amador ,
C. Cascales  and
I. Rasines
J. Amador
Affiliation:
Instituto de Química Inorgánica Elhúyar, CSIC, Serrano 113, 28006 Madrid, Spain
C. Cascales
Affiliation:
Instituto de Química Inorgánica Elhúyar, CSIC, Serrano 113, 28006 Madrid, Spain
I. Rasines
Affiliation:
Instituto de Química Inorgánica Elhúyar, CSIC, Serrano 113, 28006 Madrid, Spain
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Abstract

Polycrystalline black coloured Ba2Cu3PrO7−x is prepared from a mixture of analytical grade BaO2, CuO, Cu metal, and Pr 2O3 (2 : 2 : 1 : 0.5), which are ground, pelletized, and heated in evacuated quartz ampoules at 1273 K for 4 days, and then slowly cooled.

X-ray powder diffraction data show that Ba2Cu3PrO7−x is orthorhombic, a = 3.823(2), b = 3.877(2), c= 11.793(5) Å, space group Pmmm (no. 47), Z = 1. The structure of Ba2Cu3PrO7−x is refined from 37 reflections by using a least-squares method up to Rc = 0.044 and Rw = 0.041. Structural data and main interatomic distances are given.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 249
Copyright
Copyright © Materials Research Society 1988

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References

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