Materials Data on ThBi2 by Materials Project
Bi2Th crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Th is bonded in a 9-coordinate geometry to nine Bi atoms. There are a spread of Th–Bi bond distances ranging from 3.32–3.47 Å. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Th and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.22 Å. In the second Bi site, Bi is bonded to five equivalent Th atoms to form a mixture of distorted corner and edge-sharing BiTh5 trigonal bipyramids.
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