TbMnFe crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1) and six equivalent Fe(1) atoms. Mn(1) is bonded to six equivalent Tb(1), two equivalent Mn(1), and four equivalent Fe(1) atoms to form MnTb6Mn2Fe4 cuboctahedra that share corners with eight equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, corners with ten equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, edges with six equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, faces with six equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, and faces with twelve equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra. Fe(1) is bonded to six equivalent Tb(1), four equivalent Mn(1), and two equivalent Fe(1) atoms to form FeTb6Mn4Fe2 cuboctahedra that share corners with eight equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, corners with ten equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, edges with six equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, faces with six equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, and faces with twelve equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra.
TbMnFe crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1) and six equivalent Fe(1) atoms. There are four shorter (3.00 Å) and two longer (3.03 Å) Tb(1)-Mn(1) bond lengths. There are two shorter (3.00 Å) and four longer (3.04 Å) Tb(1)-Fe(1) bond lengths. Mn(1) is bonded to six equivalent Tb(1), two equivalent Mn(1), and four equivalent Fe(1) atoms to form MnTb6Mn2Fe4 cuboctahedra that share corners with eight equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, corners with ten equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, edges with six equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, faces with six equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, and faces with twelve equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra. Both Mn(1)-Mn(1) bond lengths are 2.61 Å. All Mn(1)-Fe(1) bond lengths are 2.57 Å. Fe(1) is bonded to six equivalent Tb(1), four equivalent Mn(1), and two equivalent Fe(1) atoms to form FeTb6Mn4Fe2 cuboctahedra that share corners with eight equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra, corners with ten equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, edges with six equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, faces with six equivalent Fe(1)Tb6Mn4Fe2 cuboctahedra, and faces with twelve equivalent Mn(1)Tb6Mn2Fe4 cuboctahedra. Both Fe(1)-Fe(1) bond lengths are 2.54 Å.