MgYTl is half-Heusler structured and crystallizes in the cubic F-43m space group. Mg(1) is bonded to four equivalent Y(1) atoms to form distorted MgY4 tetrahedra that share corners with four equivalent Tl(1)Y4 tetrahedra, corners with twelve equivalent Mg(1)Y4 tetrahedra, and edges with six equivalent Tl(1)Y4 tetrahedra. Y(1) is bonded in a body-centered cubic geometry to four equivalent Mg(1) and four equivalent Tl(1) atoms. Tl(1) is bonded to four equivalent Y(1) atoms to form TlY4 tetrahedra that share corners with four equivalent Mg(1)Y4 tetrahedra, corners with twelve equivalent Tl(1)Y4 tetrahedra, and edges with six equivalent Mg(1)Y4 tetrahedra.
MgYTl is half-Heusler structured and crystallizes in the cubic F-43m space group. Mg(1) is bonded to four equivalent Y(1) atoms to form distorted MgY4 tetrahedra that share corners with four equivalent Tl(1)Y4 tetrahedra, corners with twelve equivalent Mg(1)Y4 tetrahedra, and edges with six equivalent Tl(1)Y4 tetrahedra. All Mg(1)-Y(1) bond lengths are 3.10 Å. Y(1) is bonded in a body-centered cubic geometry to four equivalent Mg(1) and four equivalent Tl(1) atoms. All Y(1)-Tl(1) bond lengths are 3.10 Å. Tl(1) is bonded to four equivalent Y(1) atoms to form TlY4 tetrahedra that share corners with four equivalent Mg(1)Y4 tetrahedra, corners with twelve equivalent Tl(1)Y4 tetrahedra, and edges with six equivalent Mg(1)Y4 tetrahedra.