Sm2CdGe2 crystallizes in the tetragonal P4/mbm space group. Sm(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 Sm(1) and four equivalent Ge(1) atoms to form a mixture of corner and face-sharing CdSm8Ge4 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1), two equivalent Cd(1), and one Ge(1) atom.
Sm2CdGe2 crystallizes in the tetragonal P4/mbm space group. Sm(1) is bonded in a 10-coordinate geometry to four equivalent Cd(1) and six equivalent Ge(1) atoms. All Sm(1)-Cd(1) bond lengths are 3.46 Å. There are two shorter (3.00 Å) and four longer (3.11 Å) Sm(1)-Ge(1) bond lengths. Cd(1) is bonded to eight equivalent Sm(1) and four equivalent Ge(1) atoms to form a mixture of corner and face-sharing CdSm8Ge4 cuboctahedra. All Cd(1)-Ge(1) bond lengths are 2.96 Å. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1), two equivalent Cd(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.51 Å.