Materials Data on Dy2Al3Co by Materials Project

Abstract

Dy2CoAl3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Dy is bonded in a 12-coordinate geometry to four equivalent Dy, three equivalent Co, and nine equivalent Al atoms. There are one shorter (3.30 Å) and three longer (3.33 Å) Dy–Dy bond lengths. All Dy–Co bond lengths are 3.21 Å. There are three shorter (3.13 Å) and six longer (3.20 Å) Dy–Al bond lengths. Co is bonded to six equivalent Dy and six equivalent Al atoms to form CoDy6Al6 cuboctahedra that share corners with six equivalent CoDy6Al6 cuboctahedra, corners with twelve equivalent AlDy6Al4Co2 cuboctahedra, edges with six equivalent CoDy6Al6 cuboctahedra, and faces with eighteen equivalent AlDy6Al4Co2 cuboctahedra. All Co–Al bond lengths are 2.69 Å. Al is bonded to six equivalent Dy, two equivalent Co, and four equivalent Al atoms to form AlDy6Al4Co2 cuboctahedra that share corners with four equivalent CoDy6Al6 cuboctahedra, corners with fourteen equivalent AlDy6Al4Co2 cuboctahedra, edges with six equivalent AlDy6Al4Co2 cuboctahedra, faces with six equivalent CoDy6Al6 cuboctahedra, and faces with twelve equivalent AlDy6Al4Co2 cuboctahedra. All Al–Al bond lengths are 2.74 Å.