HoCr2ZnO6 crystallizes in the orthorhombic Pmn2_1 space group. Ho(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. Cr(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles range from 37-39°. Zn(1) is bonded in a 4-coordinate geometry to one O(1), one O(4), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Ho(1), two equivalent Cr(1), and one Zn(1) atom to form distorted corner-sharing OHoZnCr2 trigonal pyramids. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ho(1) and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Ho(1), two equivalent Cr(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded to one Ho(1), two equivalent Cr(1), and one Zn(1) atom to form corner-sharing OHoZnCr2 tetrahedra.
HoCr2ZnO6 crystallizes in the orthorhombic Pmn2_1 space group. Ho(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. The Ho(1)-O(1) bond length is 2.23 Å. The Ho(1)-O(4) bond length is 2.25 Å. Both Ho(1)-O(2) bond lengths are 2.23 Å. There are two shorter (2.51 Å) and two longer (2.65 Å) Ho(1)-O(3) bond lengths. Cr(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles range from 37-39°. The Cr(1)-O(1) bond length is 2.00 Å. The Cr(1)-O(4) bond length is 2.03 Å. There is one shorter (1.90 Å) and one longer (1.97 Å) Cr(1)-O(2) bond length. There is one shorter (1.99 Å) and one longer (2.05 Å) Cr(1)-O(3) bond length. Zn(1) is bonded in a 4-coordinate geometry to one O(1), one O(4), and two equivalent O(3) atoms. The Zn(1)-O(1) bond length is 2.27 Å. The Zn(1)-O(4) bond length is 2.01 Å. Both Zn(1)-O(3) bond lengths are 2.10 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Ho(1), two equivalent Cr(1), and one Zn(1) atom to form distorted corner-sharing OHoZnCr2 trigonal pyramids. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ho(1) and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Ho(1), two equivalent Cr(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded to one Ho(1), two equivalent Cr(1), and one Zn(1) atom to form corner-sharing OHoZnCr2 tetrahedra.