LiMg crystallizes in the trigonal R-3m space group. Li(1) is bonded to six equivalent Li(1) and six equivalent Mg(1) atoms to form LiLi6Mg6 cuboctahedra that share corners with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, faces with six equivalent Li(1)Li6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Li6Mg6 cuboctahedra. Mg(1) is bonded to six equivalent Li(1) and six equivalent Mg(1) atoms to form MgLi6Mg6 cuboctahedra that share corners with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, faces with six equivalent Mg(1)Li6Mg6 cuboctahedra, and faces with twelve equivalent Li(1)Li6Mg6 cuboctahedra.
LiMg crystallizes in the trigonal R-3m space group. Li(1) is bonded to six equivalent Li(1) and six equivalent Mg(1) atoms to form LiLi6Mg6 cuboctahedra that share corners with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, faces with six equivalent Li(1)Li6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Li6Mg6 cuboctahedra. All Li(1)-Li(1) bond lengths are 3.09 Å. All Li(1)-Mg(1) bond lengths are 3.10 Å. Mg(1) is bonded to six equivalent Li(1) and six equivalent Mg(1) atoms to form MgLi6Mg6 cuboctahedra that share corners with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Li(1)Li6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Li6Mg6 cuboctahedra, faces with six equivalent Mg(1)Li6Mg6 cuboctahedra, and faces with twelve equivalent Li(1)Li6Mg6 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.09 Å.