Dy2CdGe2 crystallizes in the tetragonal P4/mbm space group. Dy(1) is bonded in a 10-coordinate geometry to four equivalent Cd(1) and six equivalent Ge(1) atoms. Cd(1) is bonded to eight equivalent Dy(1) and four equivalent Ge(1) atoms to form a mixture of face and corner-sharing CdDy8Ge4 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1), two equivalent Cd(1), and one Ge(1) atom.
Dy2CdGe2 crystallizes in the tetragonal P4/mbm space group. Dy(1) is bonded in a 10-coordinate geometry to four equivalent Cd(1) and six equivalent Ge(1) atoms. All Dy(1)-Cd(1) bond lengths are 3.39 Å. There are two shorter (2.93 Å) and four longer (3.05 Å) Dy(1)-Ge(1) bond lengths. Cd(1) is bonded to eight equivalent Dy(1) and four equivalent Ge(1) atoms to form a mixture of face and corner-sharing CdDy8Ge4 cuboctahedra. All Cd(1)-Ge(1) bond lengths are 2.90 Å. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1), two equivalent Cd(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.50 Å.