UAs2H6O11 crystallizes in the monoclinic C2/c space group. U(1) is bonded to one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(6) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(5) atom. In the third H site, H(3) is bonded in a linear geometry to one O(2) and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(1), one As(1), and one H(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one As(1), and one H(3) atom. In the third O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one H(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one As(1) and one H(2) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one U(1) and two equivalent H(1) atoms.
UAs2H6O11 crystallizes in the monoclinic C2/c space group. U(1) is bonded to one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share corners with four equivalent As(1)O4 tetrahedra. The U(1)-O(6) bond length is 2.44 Å. Both U(1)-O(1) bond lengths are 2.38 Å. Both U(1)-O(2) bond lengths are 2.44 Å. Both U(1)-O(3) bond lengths are 1.81 Å. As(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. The As(1)-O(1) bond length is 1.71 Å. The As(1)-O(2) bond length is 1.71 Å. The As(1)-O(4) bond length is 1.74 Å. The As(1)-O(5) bond length is 1.74 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(6) atom. The H(1)-O(6) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(5) atom. The H(2)-O(1) bond length is 1.77 Å. The H(2)-O(5) bond length is 1.00 Å. In the third H site, H(3) is bonded in a linear geometry to one O(2) and one O(4) atom. The H(3)-O(2) bond length is 1.61 Å. The H(3)-O(4) bond length is 1.02 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(1), one As(1), and one H(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one As(1), and one H(3) atom. In the third O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one H(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one As(1) and one H(2) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one U(1) and two equivalent H(1) atoms.