UCd2O5 crystallizes in the monoclinic C2/c space group. U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form UO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with ten equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. Cd(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted CdO4 tetrahedra that share corners with five equivalent U(1)O6 octahedra and corners with three equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-76°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one Cd(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1) and two equivalent Cd(1) atoms. In the third O site, O(3) is bonded to two equivalent U(1) and two equivalent Cd(1) atoms to form corner-sharing OU2Cd2 tetrahedra.
UCd2O5 crystallizes in the monoclinic C2/c space group. U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form UO6 octahedra that share corners with two equivalent U(1)O6 octahedra and corners with ten equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. Both U(1)-O(1) bond lengths are 1.94 Å. Both U(1)-O(2) bond lengths are 2.13 Å. Both U(1)-O(3) bond lengths are 2.30 Å. Cd(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted CdO4 tetrahedra that share corners with five equivalent U(1)O6 octahedra and corners with three equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-76°. The Cd(1)-O(1) bond length is 2.24 Å. The Cd(1)-O(3) bond length is 2.32 Å. There is one shorter (2.20 Å) and one longer (2.28 Å) Cd(1)-O(2) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one Cd(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1) and two equivalent Cd(1) atoms. In the third O site, O(3) is bonded to two equivalent U(1) and two equivalent Cd(1) atoms to form corner-sharing OU2Cd2 tetrahedra.