UO2(OH)2 crystallizes in the monoclinic P2_1/c space group. U(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing UO6 octahedra. The corner-sharing octahedral tilt angles are 41°. H(1) is bonded in a single-bond geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 3-coordinate geometry to two equivalent U(1) and one H(1) atom. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one H(1) atom.
UO2(OH)2 crystallizes in the monoclinic P2_1/c space group. U(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing UO6 octahedra. The corner-sharing octahedral tilt angles are 41°. Both U(1)-O(1) bond lengths are 2.03 Å. There are two shorter (2.00 Å) and two longer (2.32 Å) U(1)-O(2) bond lengths. 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 1.00 Å. The H(1)-O(2) bond length is 1.72 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 3-coordinate geometry to two equivalent U(1) and one H(1) atom. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one H(1) atom.