Materials Data on UAl3 by Materials Project
UAl3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. U is bonded to twelve equivalent Al atoms to form a mixture of corner and face-sharing UAl12 cuboctahedra. There are six shorter (3.02 Å) and six longer (3.09 Å) U–Al bond lengths. Al is bonded in a 10-coordinate geometry to four equivalent U and six equivalent Al atoms. There are two shorter (2.83 Å) and four longer (2.84 Å) Al–Al bond lengths.
36 MATERIALS SCIENCE↗