Dy2Fe3Ni is Cubic Laves-derived structured and crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 12-coordinate geometry to nine equivalent Fe(1) and three equivalent Ni(1) atoms. Fe(1) is bonded to six equivalent Dy(1), four equivalent Fe(1), and two equivalent Ni(1) atoms to form FeDy6Fe4Ni2 cuboctahedra that share corners with four equivalent Ni(1)Dy6Fe6 cuboctahedra, corners with fourteen equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, edges with six equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, faces with six equivalent Ni(1)Dy6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra. Ni(1) is bonded to six equivalent Dy(1) and six equivalent Fe(1) atoms to form NiDy6Fe6 cuboctahedra that share corners with six equivalent Ni(1)Dy6Fe6 cuboctahedra, corners with twelve equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, edges with six equivalent Ni(1)Dy6Fe6 cuboctahedra, and faces with eighteen equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra.
Dy2Fe3Ni is Cubic Laves-derived structured and crystallizes in the trigonal R-3m space group. Dy(1) is bonded in a 12-coordinate geometry to nine equivalent Fe(1) and three equivalent Ni(1) atoms. There are six shorter (3.00 Å) and three longer (3.07 Å) Dy(1)-Fe(1) bond lengths. All Dy(1)-Ni(1) bond lengths are 2.98 Å. Fe(1) is bonded to six equivalent Dy(1), four equivalent Fe(1), and two equivalent Ni(1) atoms to form FeDy6Fe4Ni2 cuboctahedra that share corners with four equivalent Ni(1)Dy6Fe6 cuboctahedra, corners with fourteen equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, edges with six equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, faces with six equivalent Ni(1)Dy6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra. All Fe(1)-Fe(1) bond lengths are 2.54 Å. Both Fe(1)-Ni(1) bond lengths are 2.60 Å. Ni(1) is bonded to six equivalent Dy(1) and six equivalent Fe(1) atoms to form NiDy6Fe6 cuboctahedra that share corners with six equivalent Ni(1)Dy6Fe6 cuboctahedra, corners with twelve equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra, edges with six equivalent Ni(1)Dy6Fe6 cuboctahedra, and faces with eighteen equivalent Fe(1)Dy6Fe4Ni2 cuboctahedra.