GdGe2 crystallizes in the tetragonal I4_1/amd space group. Gd(1) is bonded to twelve equivalent Ge(1) atoms to form a mixture of distorted edge and face-sharing GdGe12 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Gd(1) and three equivalent Ge(1) atoms.
GdGe2 crystallizes in the tetragonal I4_1/amd space group. Gd(1) is bonded to twelve equivalent Ge(1) atoms to form a mixture of distorted edge and face-sharing GdGe12 cuboctahedra. There are eight shorter (3.12 Å) and four longer (3.45 Å) Gd(1)-Ge(1) bond lengths. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Gd(1) and three equivalent Ge(1) atoms. There are two shorter (2.51 Å) and one longer (2.58 Å) Ge(1)-Ge(1) bond length.