SmAlGe crystallizes in the tetragonal I4_1md space group. Sm(1) is bonded to six Al(1,1) and six equivalent Ge(1) atoms to form a mixture of face and edge-sharing SmAl6Ge6 cuboctahedra. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. In the second Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. In the third Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. Ge(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three Al(1,1) atoms.
SmAlGe crystallizes in the tetragonal I4_1md space group. Sm(1) is bonded to six Al(1,1) and six equivalent Ge(1) atoms to form a mixture of face and edge-sharing SmAl6Ge6 cuboctahedra. There are two shorter (3.21 Å) and four longer (3.22 Å) Sm(1)-Al(1,1) bond lengths. There are four shorter (3.21 Å) and two longer (3.24 Å) Sm(1)-Ge(1) bond lengths. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. There is one shorter (2.42 Å) and two longer (2.44 Å) Al(1)-Ge(1) bond lengths. In the second Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. There is one shorter (2.42 Å) and two longer (2.44 Å) Al(1)-Ge(1) bond lengths. In the third Al site, Al(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three equivalent Ge(1) atoms. There are two shorter (3.21 Å) and four longer (3.22 Å) Al(1)-Sm(1) bond lengths. There is one shorter (2.42 Å) and two longer (2.44 Å) Al(1)-Ge(1) bond lengths. Ge(1) is bonded in a distorted trigonal planar geometry to six equivalent Sm(1) and three Al(1,1) atoms.