Materials Data on UBN by Materials Project
UBN crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two UBN sheets oriented in the (0, 1, 0) direction. U6+ is bonded to five equivalent N3- atoms to form a mixture of distorted edge and corner-sharing UN5 square pyramids. There are one shorter (2.37 Å) and four longer (2.44 Å) U–N bond lengths. B3- is bonded in a single-bond geometry to one N3- atom. The B–N bond length is 1.52 Å. N3- is bonded in a distorted single-bond geometry to five equivalent U6+ and one B3- atom.
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