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Synchrotron X-ray powder diffraction pattern of the M8 murataite polytype

Published online by Cambridge University Press:  21 June 2017

Ryosuke S. S. Maki*
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Ibaraki 305-8573, Japan
Peter E. D. Morgan
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, California 92697, USA
*
a)Author to whom correspondence should be addressed. Electronic mail: maki.r.ab@m.titech.ac.jp

Abstract

The authors present here the superior result of synchrotron X-ray diffraction indexing of the 8 × 8 × 8 fluorite supercell, murataite, M8 (formula Ca66.37Mn29.33Ti186.76Zr83.35Al46.30Fe74.09O817, a = 39.277(3) Å, Z = 4). The authors present evidence that Fd$\bar 3$m (227) is the most likely space group.

Type
Rapid Communication
Copyright
Copyright © International Centre for Diffraction Data 2017 

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References

Boultif, A. and Louër, D. (2004). “Powder pattern indexing with the dichotomy method,” J. Appl. Crystallogr. 37, 724731.Google Scholar
Maki, R. S. S., Morgan, P. E. D., and Suzuki, Y. (2016). “X-ray powder diffraction characterization of the large volume unit-cell of the M8 murataite polytype,” Powder Diffr. 31, 815.Google Scholar
Pakhomova, A. S., Krivovichev, S. V., Yudintsev, S. V., and Stefanovsky, S. V. (2016). “Polysomatism and structural complexity: structure model for murataite-8C, a complex crystalline matrix for the immobilization of high-level radioactive waste,” Eur. J. Mineral. 28, 205214.CrossRefGoogle Scholar
Urusov, V. S. and Nadezhina, T. N. (2009). “Frequency distribution and selection of space groups in inorganic crystal chemistry,” J. Struct. Chem. 50, 2237.Google Scholar
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