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Refinement of Structural Parameters for Polycrystalline CdSb2O6: A Comparison of Two Methods

Published online by Cambridge University Press:  10 January 2013

A. Castro ,
I. Rasines ,
M.C. Sánchez-Martos  and
P. García-Casado
A. Castro
Affiliation:
Instituto de Cienca de Materiales, C.S.I.C., Serrano 113, E-28006 Madrid, Spain
I. Rasines*
Affiliation:
Instituto de Cienca de Materiales, C.S.I.C., Serrano 113, E-28006 Madrid, Spain
M.C. Sánchez-Martos
Affiliation:
Instituto de Cienca de Materiales, C.S.I.C., Serrano 113, E-28006 Madrid, Spain
P. García-Casado
Affiliation:
Facultad de Farmacia, Universidad de Navarra, E-31080 Pamplona, Spain.
*
*To whom correspondence should be addressed.
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Abstract

Trigonal CdSb2O6, prepared as a very crystalline powder by solid state reaction of CdO and Sb2O3, is isostructural with PbSb2O6 Space Group (S.G.) P31m (162), with a = 5.2399(2), c = 4.8045(4) Å, Z = 1 and Dc = 6.57 Mg.m−3. For the refinement of structural parameters from X-ray powder diffraction data two different methods have been employed and compared, both leading to very similar results. The refinements converged to RI = 0.025 using 35 intensities in the incremental optimization technique and to RF = 0.038, RW = 0.033 from 161 reflections in the least-squares refinement.

Type
Research Article
Information
Powder Diffraction , Volume 3 , Issue 4 , December 1988 , pp. 219 - 221
Copyright
Copyright © Cambridge University Press 1988

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