AlDy2Ge2 crystallizes in the tetragonal P4/mbm space group. Dy(1) is bonded in a 6-coordinate geometry to six equivalent Ge(1) atoms. Al(1) is bonded in a distorted square co-planar geometry to four equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1), two equivalent Al(1), and one Ge(1) atom.
AlDy2Ge2 crystallizes in the tetragonal P4/mbm space group. Dy(1) is bonded in a 6-coordinate geometry to six equivalent Ge(1) atoms. There are two shorter (2.89 Å) and four longer (3.06 Å) Dy(1)-Ge(1) bond lengths. Al(1) is bonded in a distorted square co-planar geometry to four equivalent Ge(1) atoms. All Al(1)-Ge(1) bond lengths are 2.76 Å. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1), two equivalent Al(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.57 Å.