CoU2O6 is beta Vanadium nitride-derived structured and crystallizes in the trigonal P321 space group. There are two inequivalent U sites. In the first U site, 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 four equivalent Co(1)O6 octahedra, corners with six equivalent U(2)O6 octahedra, and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-51°. In the second U site, U(2) 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 Co(2)O6 octahedra, corners with six equivalent U(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form CoO6 octahedra that share corners with six equivalent U(1)O6 octahedra and edges with three equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the second Co site, Co(2) is bonded to six equivalent O(2) atoms to form CoO6 octahedra that share corners with six equivalent U(2)O6 octahedra and edges with three equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one U(1), one U(2), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Co(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Co(1) atom.
CoU2O6 is beta Vanadium nitride-derived structured and crystallizes in the trigonal P321 space group. There are two inequivalent U sites. In the first U site, 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 four equivalent Co(1)O6 octahedra, corners with six equivalent U(2)O6 octahedra, and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-51°. Both U(1)-O(1) bond lengths are 2.14 Å. Both U(1)-O(2) bond lengths are 2.14 Å. Both U(1)-O(3) bond lengths are 2.19 Å. In the second U site, U(2) 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 Co(2)O6 octahedra, corners with six equivalent U(1)O6 octahedra, and edges with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. Both U(2)-O(1) bond lengths are 2.16 Å. Both U(2)-O(2) bond lengths are 2.16 Å. Both U(2)-O(3) bond lengths are 2.12 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form CoO6 octahedra that share corners with six equivalent U(1)O6 octahedra and edges with three equivalent U(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. All Co(1)-O(1) bond lengths are 2.15 Å. All Co(1)-O(3) bond lengths are 2.15 Å. In the second Co site, Co(2) is bonded to six equivalent O(2) atoms to form CoO6 octahedra that share corners with six equivalent U(2)O6 octahedra and edges with three equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. All Co(2)-O(2) bond lengths are 2.14 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one U(1), one U(2), and one Co(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Co(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Co(1) atom.