HoCu2Ge2 crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded in a 16-coordinate geometry to eight equivalent Cu(1) and eight equivalent Ge(1) atoms. Cu(1) is bonded to four equivalent Ho(1) and four equivalent Ge(1) atoms to form a mixture of distorted corner, edge, and face-sharing CuHo4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ho(1), four equivalent Cu(1), and one Ge(1) atom.
HoCu2Ge2 crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded in a 16-coordinate geometry to eight equivalent Cu(1) and eight equivalent Ge(1) atoms. All Ho(1)-Cu(1) bond lengths are 3.26 Å. All Ho(1)-Ge(1) bond lengths are 3.08 Å. Cu(1) is bonded to four equivalent Ho(1) and four equivalent Ge(1) atoms to form a mixture of distorted corner, edge, and face-sharing CuHo4Ge4 tetrahedra. All Cu(1)-Ge(1) bond lengths are 2.41 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ho(1), four equivalent Cu(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.44 Å.