Materials Data on Th3Al2 by Materials Project
Th3Al2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded in a square co-planar geometry to four equivalent Al atoms. All Th–Al bond lengths are 3.24 Å. In the second Th site, Th is bonded in a 6-coordinate geometry to six equivalent Al atoms. There are two shorter (3.18 Å) and four longer (3.22 Å) Th–Al bond lengths. Al is bonded in a 9-coordinate geometry to eight Th and one Al atom. The Al–Al bond length is 2.70 Å.
36 MATERIALS SCIENCE↗