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Re-determining the Nowotny chimney–ladder structure VGe1.82 from powder diffraction data

Published online by Cambridge University Press:  01 March 2012

Hanna Lind  and
Magnus Boström
Hanna Lind*
Affiliation:
Inorganic Chemistry, Stockholm University, S-106 91 Stockholm, Sweden
Magnus Boström
Affiliation:
Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany
*
a)Author to whom correspondence should be addressed. Electronic mail: hanna@inorg.su.se
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Abstract

The Nowotny chimney–ladder compound VGe1.82 was redetermined from powder diffraction data and modelled with the incommensurately modulated composite approach. The dimensions of the tetragonal unit subcells are a=5.9015(3) Å, cGe=2.6916(2)Å, and cV=4.9080(2)Å and the one-dimensional modulation vectors are qGe=0.45159(1)[001]* and qV=0.17656(1)[001]*. Comparison is made with a previous reported commensurate approximation of the structure with a 31-fold cGe axis.

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Type
Technical Articles
Information
Powder Diffraction , Volume 20 , Issue 3 , September 2005 , pp. 198 - 202
Copyright
Copyright © Cambridge University Press 2005

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References

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