ErSmMn4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Er(1) is bonded in a 16-coordinate geometry to four equivalent Sm(1) and twelve equivalent Mn(1) atoms. Sm(1) is bonded in a 16-coordinate geometry to four equivalent Er(1) and twelve equivalent Mn(1) atoms. Mn(1) is bonded to three equivalent Er(1), three equivalent Sm(1), and six equivalent Mn(1) atoms to form a mixture of corner, face, and edge-sharing MnSm3Er3Mn6 cuboctahedra.
ErSmMn4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Er(1) is bonded in a 16-coordinate geometry to four equivalent Sm(1) and twelve equivalent Mn(1) atoms. All Er(1)-Sm(1) bond lengths are 3.16 Å. All Er(1)-Mn(1) bond lengths are 3.02 Å. Sm(1) is bonded in a 16-coordinate geometry to four equivalent Er(1) and twelve equivalent Mn(1) atoms. All Sm(1)-Mn(1) bond lengths are 3.02 Å. Mn(1) is bonded to three equivalent Er(1), three equivalent Sm(1), and six equivalent Mn(1) atoms to form a mixture of corner, face, and edge-sharing MnSm3Er3Mn6 cuboctahedra. All Mn(1)-Mn(1) bond lengths are 2.58 Å.