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Powder diffraction data for two mixed nitrates CeMI2(NO3)6(MI=Rb,Cs)

Published online by Cambridge University Press:  10 January 2013

N. Guillou ,
J. P. Auffrédic  and
D. Louër
N. Guillou
Affiliation:
Laboratoire de Cristallochimie (URA 1495), Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes cedex, France
J. P. Auffrédic
Affiliation:
Laboratoire de Cristallochimie (URA 1495), Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes cedex, France
D. Louër
Affiliation:
Laboratoire de Cristallochimie (URA 1495), Université de Rennes I, Avenue du Général Leclerc, 35042 Rennes cedex, France
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Abstract

Ceric caesium nitrate CeCs2(NO3)6 and ceric rubidium nitrate CeRb2(NO3)6 have been investigated by means of X-ray powder diffraction. Precise data collected with strictly monochromatic radiation (CuKα1) are reported. Monoclinic unit cell dimensions were found by the indexing program DICVOL91 based on the variation of parameters by successive dichotomy. The final refined parameters are: a = 13.5373(7) Å, b = 7.0787(5) Å, c = 8.1672(5) Å, β = 90.813(5)° for the caesium compound and a = 13.0567(5) Å, b = 6.8684(2) Å, c = 8.1786(3) Å, β = 91.436(4)° for the rubidium compound, and the indexings are characterized by the figure of merit F30 equivalent to 245 (0.0033,37) and 194 (0.0040,39), respectively.

Type
Research Article
Information
Powder Diffraction , Volume 8 , Issue 1 , March 1993 , pp. 57 - 59
Copyright
Copyright © Cambridge University Press 1993

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