UMo5O16 crystallizes in the monoclinic P2 space group. U(1) is bonded to two equivalent O(4), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms to form corner-sharing UO8 hexagonal bipyramids. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(3), one O(5), one O(6), one O(8), and two equivalent O(2) atoms. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(7), and two equivalent O(8) atoms. In the third Mo site, Mo(3) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Mo(3) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Mo(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(1), one Mo(2), and one Mo(3) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Mo(1) and one Mo(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(1), one Mo(1), and one Mo(3) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Mo(2) atoms. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one U(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent U(1) atoms.
UMo5O16 crystallizes in the monoclinic P2 space group. U(1) is bonded to two equivalent O(4), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms to form corner-sharing UO8 hexagonal bipyramids. Both U(1)-O(4) bond lengths are 2.44 Å. Both U(1)-O(6) bond lengths are 2.45 Å. Both U(1)-O(8) bond lengths are 2.41 Å. Both U(1)-O(9) bond lengths are 2.06 Å. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(3), one O(5), one O(6), one O(8), and two equivalent O(2) atoms. The Mo(1)-O(3) bond length is 1.84 Å. The Mo(1)-O(5) bond length is 1.85 Å. The Mo(1)-O(6) bond length is 2.00 Å. The Mo(1)-O(8) bond length is 2.07 Å. There is one shorter (1.74 Å) and one longer (2.38 Å) Mo(1)-O(2) bond length. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(7), and two equivalent O(8) atoms. Both Mo(2)-O(4) bond lengths are 2.02 Å. There is one shorter (1.75 Å) and one longer (2.37 Å) Mo(2)-O(7) bond length. Both Mo(2)-O(8) bond lengths are 2.03 Å. In the third Mo site, Mo(3) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. The Mo(3)-O(3) bond length is 2.03 Å. The Mo(3)-O(4) bond length is 1.98 Å. The Mo(3)-O(5) bond length is 1.98 Å. The Mo(3)-O(6) bond length is 2.00 Å. There is one shorter (1.74 Å) and one longer (2.38 Å) Mo(3)-O(1) bond length. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Mo(3) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Mo(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(1), one Mo(2), and one Mo(3) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Mo(1) and one Mo(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(1), one Mo(1), and one Mo(3) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Mo(2) atoms. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one U(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent U(1) atoms.