YbMn2Sb2 crystallizes in the trigonal P-3m1 space group. Yb(1) is bonded to six equivalent Sb(1) atoms to form YbSb6 octahedra that share corners with twelve equivalent Mn(1)Sb4 tetrahedra, edges with six equivalent Yb(1)Sb6 octahedra, and edges with six equivalent Mn(1)Sb4 tetrahedra. Mn(1) is bonded to four equivalent Sb(1) atoms to form MnSb4 tetrahedra that share corners with six equivalent Yb(1)Sb6 octahedra, corners with six equivalent Mn(1)Sb4 tetrahedra, edges with three equivalent Yb(1)Sb6 octahedra, and edges with three equivalent Mn(1)Sb4 tetrahedra. The corner-sharing octahedral tilt angles range from 16-53°. Sb(1) is bonded to three equivalent Yb(1) and four equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing SbYb3Mn4 pentagonal bipyramids.
YbMn2Sb2 crystallizes in the trigonal P-3m1 space group. Yb(1) is bonded to six equivalent Sb(1) atoms to form YbSb6 octahedra that share corners with twelve equivalent Mn(1)Sb4 tetrahedra, edges with six equivalent Yb(1)Sb6 octahedra, and edges with six equivalent Mn(1)Sb4 tetrahedra. All Yb(1)-Sb(1) bond lengths are 3.21 Å. Mn(1) is bonded to four equivalent Sb(1) atoms to form MnSb4 tetrahedra that share corners with six equivalent Yb(1)Sb6 octahedra, corners with six equivalent Mn(1)Sb4 tetrahedra, edges with three equivalent Yb(1)Sb6 octahedra, and edges with three equivalent Mn(1)Sb4 tetrahedra. The corner-sharing octahedral tilt angles range from 16-53°. There are three shorter (2.74 Å) and one longer (2.77 Å) Mn(1)-Sb(1) bond length. Sb(1) is bonded to three equivalent Yb(1) and four equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing SbYb3Mn4 pentagonal bipyramids.