CuCrO4 crystallizes in the orthorhombic Cmcm space group. Cr(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CrO4 tetrahedra that share corners with six equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Cu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Cr(1)O4 tetrahedra and edges with two equivalent Cu(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Cr(1) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cr(1) and one Cu(1) atom.
CuCrO4 crystallizes in the orthorhombic Cmcm space group. Cr(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CrO4 tetrahedra that share corners with six equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Both Cr(1)-O(1) bond lengths are 1.76 Å. Both Cr(1)-O(2) bond lengths are 1.61 Å. Cu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Cr(1)O4 tetrahedra and edges with two equivalent Cu(1)O6 octahedra. Both Cu(1)-O(2) bond lengths are 2.38 Å. All Cu(1)-O(1) bond lengths are 1.98 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Cr(1) and two equivalent Cu(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cr(1) and one Cu(1) atom.