HoFeCu is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Ho(1) is bonded in a 12-coordinate geometry to six equivalent Fe(1) and six equivalent Cu(1) atoms. Fe(1) is bonded to six equivalent Ho(1), two equivalent Fe(1), and four equivalent Cu(1) atoms to form FeHo6Fe2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, corners with ten equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, edges with six equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, faces with six equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra. Cu(1) is bonded to six equivalent Ho(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form CuHo6Fe4Cu2 cuboctahedra that share corners with eight equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, and faces with twelve equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra.
HoFeCu is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Ho(1) is bonded in a 12-coordinate geometry to six equivalent Fe(1) and six equivalent Cu(1) atoms. There are four shorter (3.00 Å) and two longer (3.07 Å) Ho(1)-Fe(1) bond lengths. There are four shorter (2.98 Å) and two longer (3.11 Å) Ho(1)-Cu(1) bond lengths. Fe(1) is bonded to six equivalent Ho(1), two equivalent Fe(1), and four equivalent Cu(1) atoms to form FeHo6Fe2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, corners with ten equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, edges with six equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, faces with six equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra. Both Fe(1)-Fe(1) bond lengths are 2.53 Å. All Fe(1)-Cu(1) bond lengths are 2.60 Å. Cu(1) is bonded to six equivalent Ho(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form CuHo6Fe4Cu2 cuboctahedra that share corners with eight equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Ho6Fe4Cu2 cuboctahedra, and faces with twelve equivalent Fe(1)Ho6Fe2Cu4 cuboctahedra. Both Cu(1)-Cu(1) bond lengths are 2.55 Å.