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Refinement of the structure of -U4O9

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-U4O9 is a superlattice structure based on the fluorite arrangement of UO2. The U atoms occupy positions close to those in UO2 and the additional O atoms are accommodated in cuboctahedral clusters of 3m symmetry, which are centred on the special 12-fold sites of the cubic space group I 3d. The structure has been refined from single-crystal neutron data in accordance with the procedure described in the previous paper [Popa & Willis (2004).
Acta Cryst. A60, 318–321

Keywords: clusters; neutron scattering; uranium oxide

Document Type: Research Article


Publication date: 2004-07-01

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