MgHo2Se4 crystallizes in the tetragonal I-42d space group. Mg(1) is bonded in a 4-coordinate geometry to eight equivalent Se(1) atoms. Ho(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. Se(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Ho(1) atoms.
MgHo2Se4 crystallizes in the tetragonal I-42d space group. Mg(1) is bonded in a 4-coordinate geometry to eight equivalent Se(1) atoms. There are four shorter (2.73 Å) and four longer (3.29 Å) Mg(1)-Se(1) bond lengths. Ho(1) is bonded in a 8-coordinate geometry to eight equivalent Se(1) atoms. There are a spread of Ho(1)-Se(1) bond distances ranging from 2.82-3.26 Å. Se(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Ho(1) atoms.