NiCrO4 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 Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Cr(1)O4 tetrahedra and edges with two equivalent Ni(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 Ni(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one Ni(1) atom.
NiCrO4 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 Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. Both Cr(1)-O(1) bond lengths are 1.70 Å. Both Cr(1)-O(2) bond lengths are 1.62 Å. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Cr(1)O4 tetrahedra and edges with two equivalent Ni(1)O6 octahedra. Both Ni(1)-O(2) bond lengths are 1.98 Å. All Ni(1)-O(1) bond lengths are 2.03 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 Ni(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one Ni(1) atom.