YMnCo crystallizes in the orthorhombic Imma space group. Y(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1) and six equivalent Co(1) atoms. Mn(1) is bonded to six equivalent Y(1), two equivalent Mn(1), and four equivalent Co(1) atoms to form distorted MnY6Mn2Co4 cuboctahedra that share corners with eight equivalent Co(1)Y6Mn4Co2 cuboctahedra, corners with ten equivalent Mn(1)Y6Mn2Co4 cuboctahedra, edges with six equivalent Mn(1)Y6Mn2Co4 cuboctahedra, faces with six equivalent Mn(1)Y6Mn2Co4 cuboctahedra, and faces with twelve equivalent Co(1)Y6Mn4Co2 cuboctahedra. Co(1) is bonded to six equivalent Y(1), four equivalent Mn(1), and two equivalent Co(1) atoms to form CoY6Mn4Co2 cuboctahedra that share corners with eight equivalent Mn(1)Y6Mn2Co4 cuboctahedra, corners with ten equivalent Co(1)Y6Mn4Co2 cuboctahedra, edges with six equivalent Co(1)Y6Mn4Co2 cuboctahedra, faces with six equivalent Co(1)Y6Mn4Co2 cuboctahedra, and faces with twelve equivalent Mn(1)Y6Mn2Co4 cuboctahedra.
YMnCo crystallizes in the orthorhombic Imma space group. Y(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1) and six equivalent Co(1) atoms. There are two shorter (3.04 Å) and four longer (3.05 Å) Y(1)-Mn(1) bond lengths. There are two shorter (2.98 Å) and four longer (3.11 Å) Y(1)-Co(1) bond lengths. Mn(1) is bonded to six equivalent Y(1), two equivalent Mn(1), and four equivalent Co(1) atoms to form distorted MnY6Mn2Co4 cuboctahedra that share corners with eight equivalent Co(1)Y6Mn4Co2 cuboctahedra, corners with ten equivalent Mn(1)Y6Mn2Co4 cuboctahedra, edges with six equivalent Mn(1)Y6Mn2Co4 cuboctahedra, faces with six equivalent Mn(1)Y6Mn2Co4 cuboctahedra, and faces with twelve equivalent Co(1)Y6Mn4Co2 cuboctahedra. Both Mn(1)-Mn(1) bond lengths are 2.66 Å. All Mn(1)-Co(1) bond lengths are 2.59 Å. Co(1) is bonded to six equivalent Y(1), four equivalent Mn(1), and two equivalent Co(1) atoms to form CoY6Mn4Co2 cuboctahedra that share corners with eight equivalent Mn(1)Y6Mn2Co4 cuboctahedra, corners with ten equivalent Co(1)Y6Mn4Co2 cuboctahedra, edges with six equivalent Co(1)Y6Mn4Co2 cuboctahedra, faces with six equivalent Co(1)Y6Mn4Co2 cuboctahedra, and faces with twelve equivalent Mn(1)Y6Mn2Co4 cuboctahedra. Both Co(1)-Co(1) bond lengths are 2.60 Å.