Materials Data on UIN by Materials Project
UNI crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one UNI sheet oriented in the (0, 0, 1) direction. U4+ is bonded in a 4-coordinate geometry to four equivalent N3- and four equivalent I1- atoms. All U–N bond lengths are 2.26 Å. All U–I bond lengths are 3.40 Å. N3- is bonded to four equivalent U4+ atoms to form a mixture of corner and edge-sharing NU4 tetrahedra. I1- is bonded in a 4-coordinate geometry to four equivalent U4+ atoms.
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