Materials Data on Dy(FeSn)6 by Materials Project

Abstract

DyFe6Sn6 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Dy is bonded to twelve Fe and eight Sn atoms to form distorted DyFe12Sn8 hexagonal bipyramids that share corners with four equivalent DyFe12Sn8 hexagonal bipyramids, faces with twenty-four FeDy2Fe4Sn6 cuboctahedra, and faces with four equivalent DyFe12Sn8 hexagonal bipyramids. There are a spread of Dy–Fe bond distances ranging from 3.48–3.51 Å. There are a spread of Dy–Sn bond distances ranging from 3.02–3.19 Å. There are three inequivalent Fe sites. In the first Fe site, Fe is bonded to two equivalent Dy, four Fe, and six Sn atoms to form distorted FeDy2Fe4Sn6 cuboctahedra that share corners with fourteen FeDy2Fe4Sn6 cuboctahedra, edges with six FeDy2Fe4Sn6 cuboctahedra, faces with ten FeDy2Fe4Sn6 cuboctahedra, and faces with four equivalent DyFe12Sn8 hexagonal bipyramids. There are two shorter (2.70 Å) and two longer (2.71 Å) Fe–Fe bond lengths. There are a spread of Fe–Sn bond distances ranging from 2.71–2.82 Å. In the second Fe site, Fe is bonded to two equivalent Dy, four Fe, and six Sn atoms to form distorted FeDy2Fe4Sn6 cuboctahedra that share corners with fourteen FeDy2Fe4Sn6 cuboctahedra, edges with seven FeDy2Fe4Sn6 cuboctahedra, faces with nine FeDy2Fe4Sn6 cuboctahedra, and faces with four equivalent DyFe12Sn8 hexagonal bipyramids. All Fe–Fe bond lengths are 2.71 Å. There are a spread of Fe–Sn bond distances ranging from 2.71–2.81 Å. In the third Fe site, Fe is bonded to two equivalent Dy, four Fe, and six Sn atoms to form distorted FeDy2Fe4Sn6 cuboctahedra that share corners with fourteen FeDy2Fe4Sn6 cuboctahedra, edges with seven FeDy2Fe4Sn6 cuboctahedra, faces with nine FeDy2Fe4Sn6 cuboctahedra, and faces with four equivalent DyFe12Sn8 hexagonal bipyramids. There are a spread of Fe–Sn bond distances ranging from 2.69–2.82 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to three equivalent Dy and six Fe atoms. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six Fe atoms. In the third Sn site, Sn is bonded in a 8-coordinate geometry to two equivalent Dy and six Fe atoms. In the fourth Sn site, Sn is bonded in a 7-coordinate geometry to one Dy and six Fe atoms. In the fifth Sn site, Sn is bonded in a 8-coordinate geometry to one Dy, six Fe, and one Sn atom. The Sn–Sn bond length is 2.91 Å.