ISSN:
1600-5767
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
Based on investigations at 9 and 295 K, Na2UI6 has been shown to crystallize in a new structure type corresponding to space group R{\bar 3}, in contrast to ionic conductors of the type Na2UX6 for X = Cl, Br which crystallize in the space group P{\bar 3}ml. Atomic positions of sodium and iodine have been refined using the Rietveld profile fitting procedure. It was found that in space group R{\bar 3} the U, Na and I atoms occupy positions 3(a), 6(c) and 18(f), respectively. The relation between the Na2UCl6-type structure and the structure of Na2UI6 is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0021889891007264
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