MgHo2Cr2O8 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the second Ho site, Ho(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted trigonal pyramidal geometry to two equivalent O(2) and two equivalent O(3) atoms. In the second Cr site, Cr(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ho(1), one Ho(2), and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(2) atom.
MgHo2Cr2O8 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Mg(1)-O(2) bond lengths are 1.99 Å. Both Mg(1)-O(3) bond lengths are 2.62 Å. Both Mg(1)-O(4) bond lengths are 1.97 Å. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ho(1)-O(1) bond lengths are 2.36 Å. Both Ho(1)-O(2) bond lengths are 2.43 Å. Both Ho(1)-O(3) bond lengths are 2.32 Å. Both Ho(1)-O(4) bond lengths are 2.48 Å. In the second Ho site, Ho(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ho(2)-O(1) bond lengths are 2.23 Å. Both Ho(2)-O(2) bond lengths are 2.39 Å. Both Ho(2)-O(3) bond lengths are 2.53 Å. Both Ho(2)-O(4) bond lengths are 2.54 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted trigonal pyramidal geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Cr(1)-O(2) bond lengths are 1.87 Å. Both Cr(1)-O(3) bond lengths are 1.77 Å. In the second Cr site, Cr(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(4) atoms. Both Cr(2)-O(1) bond lengths are 1.78 Å. Both Cr(2)-O(4) bond lengths are 1.81 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ho(1), one Ho(2), and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Ho(1), one Ho(2), and one Cr(2) atom.