Y2Mn3Fe crystallizes in the trigonal R-3m space group. Y(1) is bonded in a 16-coordinate geometry to four equivalent Y(1), nine equivalent Mn(1), and three equivalent Fe(1) atoms. Mn(1) is bonded to six equivalent Y(1), four equivalent Mn(1), and two equivalent Fe(1) atoms to form distorted MnY6Mn4Fe2 cuboctahedra that share corners with four equivalent Fe(1)Y6Mn6 cuboctahedra, corners with fourteen equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, edges with six equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, faces with six equivalent Fe(1)Y6Mn6 cuboctahedra, and faces with twelve equivalent Mn(1)Y6Mn4Fe2 cuboctahedra. Fe(1) is bonded to six equivalent Y(1) and six equivalent Mn(1) atoms to form FeY6Mn6 cuboctahedra that share corners with six equivalent Fe(1)Y6Mn6 cuboctahedra, corners with twelve equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, edges with six equivalent Fe(1)Y6Mn6 cuboctahedra, and faces with eighteen equivalent Mn(1)Y6Mn4Fe2 cuboctahedra.
Y2Mn3Fe crystallizes in the trigonal R-3m space group. Y(1) is bonded in a 16-coordinate geometry to four equivalent Y(1), nine equivalent Mn(1), and three equivalent Fe(1) atoms. There is one shorter (3.09 Å) and three longer (3.22 Å) Y(1)-Y(1) bond lengths. There are three shorter (2.94 Å) and six longer (3.08 Å) Y(1)-Mn(1) bond lengths. All Y(1)-Fe(1) bond lengths are 3.11 Å. Mn(1) is bonded to six equivalent Y(1), four equivalent Mn(1), and two equivalent Fe(1) atoms to form distorted MnY6Mn4Fe2 cuboctahedra that share corners with four equivalent Fe(1)Y6Mn6 cuboctahedra, corners with fourteen equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, edges with six equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, faces with six equivalent Fe(1)Y6Mn6 cuboctahedra, and faces with twelve equivalent Mn(1)Y6Mn4Fe2 cuboctahedra. All Mn(1)-Mn(1) bond lengths are 2.66 Å. Both Mn(1)-Fe(1) bond lengths are 2.54 Å. Fe(1) is bonded to six equivalent Y(1) and six equivalent Mn(1) atoms to form FeY6Mn6 cuboctahedra that share corners with six equivalent Fe(1)Y6Mn6 cuboctahedra, corners with twelve equivalent Mn(1)Y6Mn4Fe2 cuboctahedra, edges with six equivalent Fe(1)Y6Mn6 cuboctahedra, and faces with eighteen equivalent Mn(1)Y6Mn4Fe2 cuboctahedra.