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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
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.

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
Copyright
Copyright © Cambridge University Press 1988

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References

Desgardin, G., Jeanne, G. & Raveau, B. (1971). C.R. Séances Acad. Sci. Ser. C 279, 565568.Google Scholar
Gvildys, J. (1968). Crystallographic Least Squares Refinement Program. Modified by Rodriguez-Carvajal, J., (1983).Google Scholar
International Tables for X-Ray Crystallography (1974). Vol. IV. Birmingham: Kynoch Press.Google Scholar
Magneli, A. (1941). Ark. Kemi, Mineral. Geol. 15B(3), 16.Google Scholar
McMurdie, H.F., Morris, M.C., Evans, E.H., Paretzkin, B., Wong-Ng, W. & Hubbard, C.R. (1986). Pow. Diff. 1, 4043.CrossRefGoogle Scholar
Roderick, J. Hill (1987). J. Solid State Chem. 71, 1218.Google Scholar
Stewart, J.J., Kundell, F.A. & Baldwin, J.C. (1970). The X-ray 70 System. Computer Science Center. University of Maryland. College Park. Maryland.Google Scholar
Vincent, H., Turrillas, X. & Rasines, I. (1987). Mater. Res. Bull. 22, 13691379.CrossRefGoogle Scholar
Wells, A.F. (1984). Structural Inorganic Chemistry, p. 905. Oxford: Clarendon Press.Google Scholar
Yvon, R., Jeitschko, W. & Parthé, E. (1977). J. Appl. Crystallogr. 10, 7374.CrossRefGoogle Scholar