DyFeCo3Ga crystallizes in the monoclinic P2/m space group. Dy(1) is bonded in a 18-coordinate geometry to four equivalent Fe(1), four equivalent Co(2), six equivalent Co(1), and four equivalent Ga(1) atoms. Fe(1) is bonded to four equivalent Dy(1), two equivalent Co(2), four equivalent Co(1), and two equivalent Ga(1) atoms to form distorted FeDy4Ga2Co6 cuboctahedra that share corners with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, corners with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, corners with eight equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with two equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with two equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, faces with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, and faces with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), two equivalent Fe(1), two equivalent Co(2), and two equivalent Ga(1) atoms. In the second Co site, Co(2) is bonded to four equivalent Dy(1), two equivalent Fe(1), four equivalent Co(1), and two equivalent Ga(1) atoms to form distorted CoDy4Ga2Fe2Co4 cuboctahedra that share corners with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, corners with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, corners with eight equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with two equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with two equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, faces with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, and faces with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra. Ga(1) is bonded to four equivalent Dy(1), two equivalent Fe(1), two equivalent Co(2), and four equivalent Co(1) atoms to form GaDy4Fe2Co6 cuboctahedra that share corners with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, corners with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, corners with eight equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, edges with two equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, edges with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, faces with two equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, and faces with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra.
DyFeCo3Ga crystallizes in the monoclinic P2/m space group. Dy(1) is bonded in a 18-coordinate geometry to four equivalent Fe(1), four equivalent Co(2), six equivalent Co(1), and four equivalent Ga(1) atoms. All Dy(1)-Fe(1) bond lengths are 3.21 Å. All Dy(1)-Co(2) bond lengths are 3.24 Å. There are a spread of Dy(1)-Co(1) bond distances ranging from 2.88-2.91 Å. All Dy(1)-Ga(1) bond lengths are 3.17 Å. Fe(1) is bonded to four equivalent Dy(1), two equivalent Co(2), four equivalent Co(1), and two equivalent Ga(1) atoms to form distorted FeDy4Ga2Co6 cuboctahedra that share corners with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, corners with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, corners with eight equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with two equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with two equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, faces with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, and faces with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra. Both Fe(1)-Co(2) bond lengths are 2.46 Å. All Fe(1)-Co(1) bond lengths are 2.45 Å. Both Fe(1)-Ga(1) bond lengths are 2.54 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), two equivalent Fe(1), two equivalent Co(2), and two equivalent Ga(1) atoms. Both Co(1)-Co(2) bond lengths are 2.44 Å. Both Co(1)-Ga(1) bond lengths are 2.53 Å. In the second Co site, Co(2) is bonded to four equivalent Dy(1), two equivalent Fe(1), four equivalent Co(1), and two equivalent Ga(1) atoms to form distorted CoDy4Ga2Fe2Co4 cuboctahedra that share corners with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, corners with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, corners with eight equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with two equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, edges with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with two equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, faces with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, and faces with four equivalent Ga(1)Dy4Fe2Co6 cuboctahedra. Both Co(2)-Ga(1) bond lengths are 2.51 Å. Ga(1) is bonded to four equivalent Dy(1), two equivalent Fe(1), two equivalent Co(2), and four equivalent Co(1) atoms to form GaDy4Fe2Co6 cuboctahedra that share corners with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, corners with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, corners with eight equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, edges with two equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, edges with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, edges with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra, faces with two equivalent Ga(1)Dy4Fe2Co6 cuboctahedra, faces with four equivalent Fe(1)Dy4Ga2Co6 cuboctahedra, and faces with four equivalent Co(2)Dy4Ga2Fe2Co4 cuboctahedra.