Materials Data on Dy3(Al2Fe)2 by Materials Project

Abstract

Dy3(FeAl2)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Dy sites. In the first Dy site, Dy is bonded in a 12-coordinate geometry to four Dy, four Fe, and eight Al atoms. There are a spread of Dy–Dy bond distances ranging from 3.28–3.37 Å. There are a spread of Dy–Fe bond distances ranging from 3.16–3.25 Å. There are a spread of Dy–Al bond distances ranging from 3.13–3.25 Å. In the second Dy site, Dy is bonded in a 12-coordinate geometry to four Dy, five Fe, and seven Al atoms. The Dy–Dy bond length is 3.24 Å. There are a spread of Dy–Fe bond distances ranging from 3.08–3.23 Å. There are a spread of Dy–Al bond distances ranging from 3.09–3.24 Å. In the third Dy site, Dy is bonded in a 12-coordinate geometry to four Dy, three equivalent Fe, and nine Al atoms. There are a spread of Dy–Dy bond distances ranging from 3.31–3.33 Å. There are a spread of Dy–Fe bond distances ranging from 3.19–3.21 Å. There are a spread of Dy–Al bond distances ranging from 3.13–3.22 Å. There are three inequivalent Fe sites. In the first Fe site, Fe is bonded to six Dy, two equivalent Fe, and four Al atoms to form FeDy6Al4Fe2 cuboctahedra that share corners with six FeDy6Al4Fe2 cuboctahedra, corners with twelve AlDy6Al4Fe2 cuboctahedra, edges with six FeDy6Al4Fe2 cuboctahedra, faces with four equivalent FeDy6Al4Fe2 cuboctahedra, and faces with fourteen AlDy6Al4Fe2 cuboctahedra. Both Fe–Fe bond lengths are 2.70 Å. There are two shorter (2.65 Å) and two longer (2.69 Å) Fe–Al bond lengths. In the second Fe site, Fe is bonded to six Dy and six Al atoms to form FeDy6Al6 cuboctahedra that share corners with eight FeDy6Al4Fe2 cuboctahedra, corners with ten AlDy6Al4Fe2 cuboctahedra, edges with six FeDy6Al4Fe2 cuboctahedra, a faceface with one FeDy6Al4Fe2 cuboctahedra, and faces with seventeen AlDy6Al4Fe2 cuboctahedra. There are a spread of Fe–Al bond distances ranging from 2.69–2.74 Å. In the third Fe site, Fe is bonded to six Dy, two equivalent Fe, and four Al atoms to form FeDy6Al4Fe2 cuboctahedra that share corners with eight FeDy6Al6 cuboctahedra, corners with ten AlDy6Al4Fe2 cuboctahedra, edges with two equivalent FeDy6Al4Fe2 cuboctahedra, edges with four equivalent AlDy6Al4Fe2 cuboctahedra, faces with six FeDy6Al4Fe2 cuboctahedra, and faces with twelve AlDy6Al3Fe3 cuboctahedra. There are two shorter (2.64 Å) and two longer (2.73 Å) Fe–Al bond lengths. There are five inequivalent Al sites. In the first Al site, Al is bonded to six Dy, two equivalent Fe, and four Al atoms to form distorted AlDy6Al4Fe2 cuboctahedra that share corners with five FeDy6Al4Fe2 cuboctahedra, corners with thirteen AlDy6Al4Fe2 cuboctahedra, edges with two equivalent FeDy6Al4Fe2 cuboctahedra, edges with four equivalent AlDy6Al4Fe2 cuboctahedra, faces with six FeDy6Al4Fe2 cuboctahedra, and faces with twelve AlDy6Al3Fe3 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.72–2.79 Å. In the second Al site, Al is bonded to six Dy, three Fe, and three Al atoms to form distorted AlDy6Al3Fe3 cuboctahedra that share corners with six FeDy6Al4Fe2 cuboctahedra, corners with twelve AlDy6Al4Fe2 cuboctahedra, edges with six equivalent AlDy6Al3Fe3 cuboctahedra, faces with nine FeDy6Al4Fe2 cuboctahedra, and faces with nine AlDy6Al4Fe2 cuboctahedra. There are one shorter (2.71 Å) and one longer (2.76 Å) Al–Al bond lengths. In the third Al site, Al is bonded to six equivalent Dy, two equivalent Fe, and four Al atoms to form AlDy6Al4Fe2 cuboctahedra that share corners with four equivalent FeDy6Al6 cuboctahedra, corners with fourteen AlDy6Al4Fe2 cuboctahedra, edges with six equivalent AlDy6Al4Fe2 cuboctahedra, faces with six equivalent FeDy6Al6 cuboctahedra, and faces with twelve AlDy6Al4Fe2 cuboctahedra. Both Al–Al bond lengths are 2.75 Å. In the fourth Al site, Al is bonded to six Dy, four Fe, and two equivalent Al atoms to form AlDy6Al2Fe4 cuboctahedra that share corners with four equivalent FeDy6Al6 cuboctahedra, corners with fourteen AlDy6Al4Fe2 cuboctahedra, edges with six AlDy6Al2Fe4 cuboctahedra, faces with eight AlDy6Al4Fe2 cuboctahedra, and faces with ten FeDy6Al4Fe2 cuboctahedra. In the fifth Al site, Al is bonded to six Dy, two equivalent Fe, and four Al atoms to form AlDy6Al4Fe2 cuboctahedra that share corners with six FeDy6Al4Fe2 cuboctahedra, corners with twelve AlDy6Al4Fe2 cuboctahedra, edges with six AlDy6Al2Fe4 cuboctahedra, faces with seven FeDy6Al4Fe2 cuboctahedra, and faces with eleven AlDy6Al4Fe2 cuboctahedra.