U is beta Uranium structured and crystallizes in the tetragonal P4_2/mnm space group. There are five inequivalent U sites. In the first U site, U(1) is bonded to four equivalent U(2), four equivalent U(3), and four equivalent U(4) atoms to form a mixture of face, corner, and edge-sharing UU12 cuboctahedra. In the second U site, U(2) is bonded in a 15-coordinate geometry to one U(2), two equivalent U(1), two equivalent U(5), four equivalent U(4), and six equivalent U(3) atoms. In the third U site, U(3) is bonded in a 1-coordinate geometry to one U(1), one U(3), three equivalent U(2), four equivalent U(4), and four equivalent U(5) atoms. In the fourth U site, U(4) is bonded to one U(1), one U(4), two equivalent U(2), four equivalent U(3), and four equivalent U(5) atoms to form a mixture of distorted face, corner, and edge-sharing UU12 cuboctahedra. In the fifth U site, U(5) is bonded in a 14-coordinate geometry to one U(2), four equivalent U(3), four equivalent U(4), and five equivalent U(5) atoms.
U is beta Uranium structured and crystallizes in the tetragonal P4_2/mnm space group. There are five inequivalent U sites. In the first U site, U(1) is bonded to four equivalent U(2), four equivalent U(3), and four equivalent U(4) atoms to form a mixture of face, corner, and edge-sharing UU12 cuboctahedra. All U(1)-U(2) bond lengths are 3.23 Å. All U(1)-U(3) bond lengths are 3.04 Å. All U(1)-U(4) bond lengths are 2.86 Å. In the second U site, U(2) is bonded in a 15-coordinate geometry to one U(2), two equivalent U(1), two equivalent U(5), four equivalent U(4), and six equivalent U(3) atoms. The U(2)-U(2) bond length is 3.23 Å. Both U(2)-U(5) bond lengths are 2.75 Å. All U(2)-U(4) bond lengths are 3.29 Å. There are four shorter (3.33 Å) and two longer (3.49 Å) U(2)-U(3) bond lengths. In the third U site, U(3) is bonded in a 1-coordinate geometry to one U(1), one U(3), three equivalent U(2), four equivalent U(4), and four equivalent U(5) atoms. The U(3)-U(3) bond length is 2.52 Å. There are two shorter (3.04 Å) and two longer (3.09 Å) U(3)-U(4) bond lengths. There are two shorter (3.27 Å) and two longer (3.32 Å) U(3)-U(5) bond lengths. In the fourth U site, U(4) is bonded to one U(1), one U(4), two equivalent U(2), four equivalent U(3), and four equivalent U(5) atoms to form a mixture of distorted face, corner, and edge-sharing UU12 cuboctahedra. The U(4)-U(4) bond length is 3.10 Å. There are a spread of U(4)-U(5) bond distances ranging from 2.78-3.04 Å. In the fifth U site, U(5) is bonded in a 14-coordinate geometry to one U(2), four equivalent U(3), four equivalent U(4), and five equivalent U(5) atoms. There is one shorter (2.97 Å) and four longer (3.49 Å) U(5)-U(5) bond lengths.