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DOE OSTI · 1199582

Materials Data on Na2UI6 by Materials Project

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Abstract

Na2UI6 is trigonal omega-derived structured and crystallizes in the trigonal R-3 space group. The structure is two-dimensional and consists of three Na2UI6 sheets oriented in the (0, 0, 1) direction. Na1+ is bonded to six equivalent I1- atoms to form NaI6 octahedra that share edges with three equivalent NaI6 octahedra and edges with three equivalent UI6 octahedra. There are three shorter (3.26 Å) and three longer (3.27 Å) Na–I bond lengths. U4+ is bonded to six equivalent I1- atoms to form UI6 octahedra that share edges with six equivalent NaI6 octahedra. All U–I bond lengths are 3.03 Å. I1- is bonded in a distorted T-shaped geometry to two equivalent Na1+ and one U4+ atom.

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36 MATERIALS SCIENCEcrystal structureI-Na-UNa2UI6

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2020-07-16. Materials Data on Na2UI6 by Materials Project. https://doi.org/10.17188/1199582

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