Materials Data on CeFeCo by Materials Project
CeFeCo is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to six equivalent Fe and six equivalent Co atoms. There are two shorter (2.95 Å) and four longer (3.01 Å) Ce–Fe bond lengths. There are four shorter (2.92 Å) and two longer (2.98 Å) Ce–Co bond lengths. Fe is bonded to six equivalent Ce, two equivalent Fe, and four equivalent Co atoms to form FeCe6Fe2Co4 cuboctahedra that share corners with eight equivalent CoCe6Fe4Co2 cuboctahedra, corners with ten equivalent FeCe6Fe2Co4 cuboctahedra, edges with six equivalent FeCe6Fe2Co4 cuboctahedra, faces with six equivalent FeCe6Fe2Co4 cuboctahedra, and faces with twelve equivalent CoCe6Fe4Co2 cuboctahedra. Both Fe–Fe bond lengths are 2.45 Å. All Fe–Co bond lengths are 2.53 Å. Co is bonded to six equivalent Ce, four equivalent Fe, and two equivalent Co atoms to form CoCe6Fe4Co2 cuboctahedra that share corners with eight equivalent FeCe6Fe2Co4 cuboctahedra, corners with ten equivalent CoCe6Fe4Co2 cuboctahedra, edges with six equivalent CoCe6Fe4Co2 cuboctahedra, faces with six equivalent CoCe6Fe4Co2 cuboctahedra, and faces with twelve equivalent FeCe6Fe2Co4 cuboctahedra. Both Co–Co bond lengths are 2.60 Å.