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Sm(OH)2NO3: Synthesis, characterization, powder diffraction data, and structure refinement by the Rietveld technique

Published online by Cambridge University Press:  10 January 2013

C. L. Lengauer ,
G. Giester  and
P. Unfried
C. L. Lengauer*
Affiliation:
Inst.f. Mineralogie und Kristallographie, Universität Wien, Dr. Karl Lueger-Ring 1, A-1010 Wien, Austria
G. Giester
Affiliation:
Inst.f. Mineralogie und Kristallographie, Universität Wien, Dr. Karl Lueger-Ring 1, A-1010 Wien, Austria
P. Unfried
Affiliation:
Inst.f. Anorganische Chemie, Universität Wien, Währingerstr.42, A-1090 Wien, Austria
*
a)Author to whom correspondence should be addressed.
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Abstract

Sm(OH)2NO3, was prepared by hydrolysis of the corresponding nitrate, leading to a product which is insoluble in water. IR-spectroscopy showed a comparison with the analogous Gd-compound. The temperature of decomposition to SmONO3 is below 573 K. The structure was refined by the Rietveld technique in space group P21, (Z=2), a=6.3852(3) Å, b=3.7784(2) Å, c=7.7402(3) Å, β=97.572(3)°, V=185.11 Å3, Rp=4.9, Rwp=6.3, RB=4.0. The compound is isotypic with Ln(OH)2NO3 (Ln=Pr,Nd,Gd). Infrared spectra and thermal decomposition data are also given for the Gd phase.

Keywords

Sm(OH)2NO3Ln-hydrolysisRietveld refinement

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Type
Research Article
Information
Powder Diffraction , Volume 9 , Issue 2 , June 1994 , pp. 115 - 118
Copyright
Copyright © Cambridge University Press 1994

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