UO2(OH)4 crystallizes in the orthorhombic Pnma space group. U(1) is bonded to one O(3), one O(4), two equivalent O(2), and four equivalent O(1) atoms to form distorted edge-sharing UO8 hexagonal bipyramids. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) and one O(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. There are four inequivalent O sites. In the first O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(4) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to two equivalent U(1), one H(1), and one O(1) atom. In the fourth O site, O(2) is bonded in a distorted water-like geometry to one U(1), one H(1), and one H(2) atom.
UO2(OH)4 crystallizes in the orthorhombic Pnma space group. U(1) is bonded to one O(3), one O(4), two equivalent O(2), and four equivalent O(1) atoms to form distorted edge-sharing UO8 hexagonal bipyramids. The U(1)-O(3) bond length is 1.85 Å. The U(1)-O(4) bond length is 1.80 Å. Both U(1)-O(2) bond lengths are 2.44 Å. All U(1)-O(1) bond lengths are 2.40 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) and one O(2) atom. The H(1)-O(1) bond length is 1.76 Å. The H(1)-O(2) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.99 Å. There are four inequivalent O sites. In the first O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(4) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to two equivalent U(1), one H(1), and one O(1) atom. The O(1)-O(1) bond length is 1.45 Å. In the fourth O site, O(2) is bonded in a distorted water-like geometry to one U(1), one H(1), and one H(2) atom.