SrUMo4O16 crystallizes in the monoclinic P2/c space group. Sr(1) is bonded to one O(3), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms to form SrO7 pentagonal bipyramids that share corners with two equivalent U(1)O7 pentagonal bipyramids. U(1) is bonded to one O(2), two equivalent O(1), two equivalent O(6), and two equivalent O(8) atoms to form distorted UO7 pentagonal bipyramids that share corners with two equivalent Sr(1)O7 pentagonal bipyramids. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(7) is bonded in a bent 150 degrees geometry to one Sr(1) and one Mo(1) atom. In the second O site, O(8) is bonded in a linear geometry to one Sr(1) and one U(1) atom. In the third O site, O(9) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom. In the fourth O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1) and two equivalent Mo(2) atoms. In the sixth O site, O(3) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent Mo(1) atoms. In the seventh O site, O(4) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom. In the eighth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(6) is bonded in a bent 150 degrees geometry to one U(1) and one Mo(2) atom.
SrUMo4O16 crystallizes in the monoclinic P2/c space group. Sr(1) is bonded to one O(3), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms to form SrO7 pentagonal bipyramids that share corners with two equivalent U(1)O7 pentagonal bipyramids. The Sr(1)-O(3) bond length is 2.58 Å. Both Sr(1)-O(5) bond lengths are 2.49 Å. Both Sr(1)-O(7) bond lengths are 2.48 Å. Both Sr(1)-O(8) bond lengths are 2.50 Å. U(1) is bonded to one O(2), two equivalent O(1), two equivalent O(6), and two equivalent O(8) atoms to form distorted UO7 pentagonal bipyramids that share corners with two equivalent Sr(1)O7 pentagonal bipyramids. The U(1)-O(2) bond length is 2.47 Å. Both U(1)-O(1) bond lengths are 2.36 Å. Both U(1)-O(6) bond lengths are 2.37 Å. Both U(1)-O(8) bond lengths are 1.82 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. The Mo(1)-O(1) bond length is 1.96 Å. The Mo(1)-O(3) bond length is 1.97 Å. The Mo(1)-O(4) bond length is 2.59 Å. The Mo(1)-O(5) bond length is 2.18 Å. The Mo(1)-O(7) bond length is 1.74 Å. The Mo(1)-O(9) bond length is 1.74 Å. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(9) atom. The Mo(2)-O(1) bond length is 2.21 Å. The Mo(2)-O(2) bond length is 1.99 Å. The Mo(2)-O(4) bond length is 1.73 Å. The Mo(2)-O(5) bond length is 1.85 Å. The Mo(2)-O(6) bond length is 1.80 Å. The Mo(2)-O(9) bond length is 2.58 Å. There are nine inequivalent O sites. In the first O site, O(7) is bonded in a bent 150 degrees geometry to one Sr(1) and one Mo(1) atom. In the second O site, O(8) is bonded in a linear geometry to one Sr(1) and one U(1) atom. In the third O site, O(9) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom. In the fourth O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1) and two equivalent Mo(2) atoms. In the sixth O site, O(3) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent Mo(1) atoms. In the seventh O site, O(4) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom. In the eighth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(6) is bonded in a bent 150 degrees geometry to one U(1) and one Mo(2) atom.