UMo13P9 crystallizes in the hexagonal P-6m2 space group. U(1) is bonded to six equivalent Mo(2) and six equivalent P(1) atoms to form distorted face-sharing UMo6P6 cuboctahedra. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 5-coordinate geometry to one P(3) and four equivalent P(2) atoms. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to two equivalent U(1), two equivalent P(1), and two equivalent P(2) atoms. In the third Mo site, Mo(3) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(3) atoms. In the fourth Mo site, Mo(4) is bonded in a 6-coordinate geometry to six equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Mo(2), and four equivalent Mo(3) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to two equivalent Mo(2), two equivalent Mo(3), and four equivalent Mo(1) atoms. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Mo(1), two equivalent Mo(4), and four equivalent Mo(3) atoms.
UMo13P9 crystallizes in the hexagonal P-6m2 space group. U(1) is bonded to six equivalent Mo(2) and six equivalent P(1) atoms to form distorted face-sharing UMo6P6 cuboctahedra. All U(1)-Mo(2) bond lengths are 3.12 Å. All U(1)-P(1) bond lengths are 2.91 Å. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 5-coordinate geometry to one P(3) and four equivalent P(2) atoms. The Mo(1)-P(3) bond length is 2.72 Å. All Mo(1)-P(2) bond lengths are 2.46 Å. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to two equivalent U(1), two equivalent P(1), and two equivalent P(2) atoms. Both Mo(2)-P(1) bond lengths are 2.53 Å. Both Mo(2)-P(2) bond lengths are 2.41 Å. In the third Mo site, Mo(3) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(3) atoms. The Mo(3)-P(2) bond length is 2.71 Å. Both Mo(3)-P(1) bond lengths are 2.54 Å. Both Mo(3)-P(3) bond lengths are 2.42 Å. In the fourth Mo site, Mo(4) is bonded in a 6-coordinate geometry to six equivalent P(3) atoms. All Mo(4)-P(3) bond lengths are 2.47 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Mo(2), and four equivalent Mo(3) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to two equivalent Mo(2), two equivalent Mo(3), and four equivalent Mo(1) atoms. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Mo(1), two equivalent Mo(4), and four equivalent Mo(3) atoms.