Materials Data on LiUN2 by Materials Project
LiUN2 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Li1+ is bonded in a square co-planar geometry to four equivalent N3- atoms. All Li–N bond lengths are 2.23 Å. U5+ is bonded to six equivalent N3- atoms to form a mixture of distorted edge and corner-sharing UN6 octahedra. The corner-sharing octahedral tilt angles are 23°. There are four shorter (2.23 Å) and two longer (2.33 Å) U–N bond lengths. N3- is bonded to two equivalent Li1+ and three equivalent U5+ atoms to form a mixture of distorted edge and corner-sharing NLi2U3 square pyramids.
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