U2Cu(SO10)2O2 crystallizes in the triclinic P-1 space group. The structure consists of two water atoms inside a U2Cu(SO10)2 framework. In the U2Cu(SO10)2 framework, U(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one Cu(1)O6 octahedra, corners with three equivalent S(1)O4 tetrahedra, and  an edgeedge with one U(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 16°. Cu(1) is bonded to two equivalent O(2), two equivalent O(8), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. S(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SO4 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one U(1) and one Cu(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent U(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one S(1) atom. In the eighth O site, O(8) is bonded in an L-shaped geometry to one Cu(1) and one O(10) atom. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Cu(1) and one O(10) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one O(8) and one O(9) atom.
U2Cu(SO10)2O2 crystallizes in the triclinic P-1 space group. The structure consists of two water atoms inside a U2Cu(SO10)2 framework. In the U2Cu(SO10)2 framework, U(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one Cu(1)O6 octahedra, corners with three equivalent S(1)O4 tetrahedra, and  an edgeedge with one U(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 16°. The U(1)-O(1) bond length is 1.81 Å. The U(1)-O(2) bond length is 1.87 Å. The U(1)-O(4) bond length is 2.41 Å. The U(1)-O(5) bond length is 2.47 Å. The U(1)-O(6) bond length is 2.40 Å. There is one shorter (2.13 Å) and one longer (2.17 Å) U(1)-O(3) bond length. Cu(1) is bonded to two equivalent O(2), two equivalent O(8), and two equivalent O(9) atoms to form CuO6 octahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. Both Cu(1)-O(2) bond lengths are 2.18 Å. Both Cu(1)-O(8) bond lengths are 2.04 Å. Both Cu(1)-O(9) bond lengths are 2.00 Å. S(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SO4 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. The S(1)-O(4) bond length is 1.50 Å. The S(1)-O(5) bond length is 1.49 Å. The S(1)-O(6) bond length is 1.50 Å. The S(1)-O(7) bond length is 1.45 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one U(1) and one Cu(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent U(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one U(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one S(1) atom. In the eighth O site, O(8) is bonded in an L-shaped geometry to one Cu(1) and one O(10) atom. The O(8)-O(10) bond length is 1.34 Å. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Cu(1) and one O(10) atom. The O(9)-O(10) bond length is 1.34 Å. In the tenth O site, O(10) is bonded in a water-like geometry to one O(8) and one O(9) atom.