Dy5(GeSb)2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to three equivalent Ge(1) and three equivalent Sb(1) atoms to form distorted DyGe3Sb3 pentagonal pyramids that share corners with three equivalent Dy(2)Ge4Sb2 octahedra, corners with ten equivalent Dy(1)Ge3Sb3 pentagonal pyramids, edges with seven equivalent Dy(1)Ge3Sb3 pentagonal pyramids, faces with two equivalent Dy(2)Ge4Sb2 octahedra, and faces with two equivalent Dy(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 35-42°. In the second Dy site, Dy(2) is bonded to four equivalent Ge(1) and two equivalent Sb(1) atoms to form DyGe4Sb2 octahedra that share corners with four equivalent Dy(2)Ge4Sb2 octahedra, corners with twelve equivalent Dy(1)Ge3Sb3 pentagonal pyramids, and faces with eight equivalent Dy(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Dy(2) and six equivalent Dy(1) atoms. Sb(1) is bonded to one Dy(2) and six equivalent Dy(1) atoms to form a mixture of distorted edge and corner-sharing SbDy7 pentagonal bipyramids.
Dy5(GeSb)2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to three equivalent Ge(1) and three equivalent Sb(1) atoms to form distorted DyGe3Sb3 pentagonal pyramids that share corners with three equivalent Dy(2)Ge4Sb2 octahedra, corners with ten equivalent Dy(1)Ge3Sb3 pentagonal pyramids, edges with seven equivalent Dy(1)Ge3Sb3 pentagonal pyramids, faces with two equivalent Dy(2)Ge4Sb2 octahedra, and faces with two equivalent Dy(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 35-42°. There are a spread of Dy(1)-Ge(1) bond distances ranging from 2.91-3.07 Å. There are a spread of Dy(1)-Sb(1) bond distances ranging from 3.13-3.20 Å. In the second Dy site, Dy(2) is bonded to four equivalent Ge(1) and two equivalent Sb(1) atoms to form DyGe4Sb2 octahedra that share corners with four equivalent Dy(2)Ge4Sb2 octahedra, corners with twelve equivalent Dy(1)Ge3Sb3 pentagonal pyramids, and faces with eight equivalent Dy(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. There are two shorter (3.04 Å) and two longer (3.06 Å) Dy(2)-Ge(1) bond lengths. Both Dy(2)-Sb(1) bond lengths are 3.08 Å. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Dy(2) and six equivalent Dy(1) atoms. Sb(1) is bonded to one Dy(2) and six equivalent Dy(1) atoms to form a mixture of distorted edge and corner-sharing SbDy7 pentagonal bipyramids.