DyCoAl crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 12-coordinate geometry to three equivalent Dy(2), one Co(3), two equivalent Co(1), two equivalent Co(2), three equivalent Al(1), and four equivalent Al(2) atoms. In the second Dy site, Dy(2) is bonded in a 16-coordinate geometry to one Dy(2), three equivalent Dy(1), one Co(1), two equivalent Co(3), four equivalent Co(2), two equivalent Al(2), and three equivalent Al(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Dy(2), four equivalent Dy(1), two equivalent Al(1), and four equivalent Al(2) atoms to form CoDy6Al6 cuboctahedra that share corners with four equivalent Co(1)Dy6Al6 cuboctahedra, corners with four equivalent Al(1)Dy6Al2Co4 cuboctahedra, edges with two equivalent Co(1)Dy6Al6 cuboctahedra, faces with six equivalent Al(1)Dy6Al2Co4 cuboctahedra, and faces with eight equivalent Al(2)Dy6Al4Co2 cuboctahedra. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), two equivalent Co(2), two equivalent Co(3), and two equivalent Al(1) atoms. In the third Co site, Co(3) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), four equivalent Co(2), and two equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to three equivalent Dy(1), three equivalent Dy(2), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Al(2) atoms to form distorted AlDy6Al2Co4 cuboctahedra that share corners with two equivalent Co(1)Dy6Al6 cuboctahedra, corners with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, edges with six equivalent Al(1)Dy6Al2Co4 cuboctahedra, faces with two equivalent Al(1)Dy6Al2Co4 cuboctahedra, faces with three equivalent Co(1)Dy6Al6 cuboctahedra, and faces with six equivalent Al(2)Dy6Al4Co2 cuboctahedra. In the second Al site, Al(2) is bonded to two equivalent Dy(2), four equivalent Dy(1), two equivalent Co(1), two equivalent Al(1), and two equivalent Al(2) atoms to form distorted AlDy6Al4Co2 cuboctahedra that share corners with four equivalent Al(1)Dy6Al2Co4 cuboctahedra, corners with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, edges with two equivalent Al(2)Dy6Al4Co2 cuboctahedra, faces with four equivalent Co(1)Dy6Al6 cuboctahedra, faces with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, and faces with six equivalent Al(1)Dy6Al2Co4 cuboctahedra.
DyCoAl crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 12-coordinate geometry to three equivalent Dy(2), one Co(3), two equivalent Co(1), two equivalent Co(2), three equivalent Al(1), and four equivalent Al(2) atoms. All Dy(1)-Dy(2) bond lengths are 3.25 Å. The Dy(1)-Co(3) bond length is 2.89 Å. Both Dy(1)-Co(1) bond lengths are 3.18 Å. Both Dy(1)-Co(2) bond lengths are 2.89 Å. There are two shorter (3.13 Å) and one longer (3.14 Å) Dy(1)-Al(1) bond length. There are two shorter (3.13 Å) and two longer (3.16 Å) Dy(1)-Al(2) bond lengths. In the second Dy site, Dy(2) is bonded in a 16-coordinate geometry to one Dy(2), three equivalent Dy(1), one Co(1), two equivalent Co(3), four equivalent Co(2), two equivalent Al(2), and three equivalent Al(1) atoms. The Dy(2)-Dy(2) bond length is 2.92 Å. The Dy(2)-Co(1) bond length is 3.10 Å. Both Dy(2)-Co(3) bond lengths are 3.06 Å. There are two shorter (2.99 Å) and two longer (3.07 Å) Dy(2)-Co(2) bond lengths. Both Dy(2)-Al(2) bond lengths are 3.12 Å. There is one shorter (3.02 Å) and two longer (3.17 Å) Dy(2)-Al(1) bond lengths. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Dy(2), four equivalent Dy(1), two equivalent Al(1), and four equivalent Al(2) atoms to form CoDy6Al6 cuboctahedra that share corners with four equivalent Co(1)Dy6Al6 cuboctahedra, corners with four equivalent Al(1)Dy6Al2Co4 cuboctahedra, edges with two equivalent Co(1)Dy6Al6 cuboctahedra, faces with six equivalent Al(1)Dy6Al2Co4 cuboctahedra, and faces with eight equivalent Al(2)Dy6Al4Co2 cuboctahedra. Both Co(1)-Al(1) bond lengths are 2.70 Å. There are two shorter (2.62 Å) and two longer (2.69 Å) Co(1)-Al(2) bond lengths. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), two equivalent Co(2), two equivalent Co(3), and two equivalent Al(1) atoms. There is one shorter (2.59 Å) and one longer (2.80 Å) Co(2)-Co(2) bond length. There is one shorter (2.54 Å) and one longer (2.77 Å) Co(2)-Co(3) bond length. Both Co(2)-Al(1) bond lengths are 2.51 Å. In the third Co site, Co(3) is bonded in a 12-coordinate geometry to two equivalent Dy(1), four equivalent Dy(2), four equivalent Co(2), and two equivalent Al(1) atoms. Both Co(3)-Al(1) bond lengths are 2.51 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to three equivalent Dy(1), three equivalent Dy(2), one Co(1), one Co(3), two equivalent Co(2), and two equivalent Al(2) atoms to form distorted AlDy6Al2Co4 cuboctahedra that share corners with two equivalent Co(1)Dy6Al6 cuboctahedra, corners with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, edges with six equivalent Al(1)Dy6Al2Co4 cuboctahedra, faces with two equivalent Al(1)Dy6Al2Co4 cuboctahedra, faces with three equivalent Co(1)Dy6Al6 cuboctahedra, and faces with six equivalent Al(2)Dy6Al4Co2 cuboctahedra. Both Al(1)-Al(2) bond lengths are 2.76 Å. In the second Al site, Al(2) is bonded to two equivalent Dy(2), four equivalent Dy(1), two equivalent Co(1), two equivalent Al(1), and two equivalent Al(2) atoms to form distorted AlDy6Al4Co2 cuboctahedra that share corners with four equivalent Al(1)Dy6Al2Co4 cuboctahedra, corners with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, edges with two equivalent Al(2)Dy6Al4Co2 cuboctahedra, faces with four equivalent Co(1)Dy6Al6 cuboctahedra, faces with four equivalent Al(2)Dy6Al4Co2 cuboctahedra, and faces with six equivalent Al(1)Dy6Al2Co4 cuboctahedra. There is one shorter (2.67 Å) and one longer (2.72 Å) Al(2)-Al(2) bond length.