UBi2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 9-coordinate geometry to four equivalent Bi(1) and five equivalent Bi(2) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Bi(1) atoms. In the second Bi site, Bi(2) is bonded to five equivalent U(1) atoms to form a mixture of corner and edge-sharing BiU5 square pyramids.
UBi2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 9-coordinate geometry to four equivalent Bi(1) and five equivalent Bi(2) atoms. All U(1)-Bi(1) bond lengths are 3.43 Å. There are four shorter (3.25 Å) and one longer (3.32 Å) U(1)-Bi(2) bond length. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Bi(1) atoms. All Bi(1)-Bi(1) bond lengths are 3.19 Å. In the second Bi site, Bi(2) is bonded to five equivalent U(1) atoms to form a mixture of corner and edge-sharing BiU5 square pyramids.