Materials Data on Ho5CoSb2 by Materials Project
Ho5CoSb2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are four inequivalent Ho sites. In the first Ho site, Ho is bonded to one Co and four equivalent Sb atoms to form a mixture of distorted corner, edge, and face-sharing HoCoSb4 trigonal bipyramids. The Ho–Co bond length is 2.69 Å. All Ho–Sb bond lengths are 3.14 Å. In the second Ho site, Ho is bonded to one Co and four equivalent Sb atoms to form a mixture of distorted corner, edge, and face-sharing HoCoSb4 trigonal bipyramids. The Ho–Co bond length is 2.99 Å. All Ho–Sb bond lengths are 3.10 Å. In the third Ho site, Ho is bonded to one Co and four equivalent Sb atoms to form a mixture of distorted corner and edge-sharing HoCoSb4 trigonal bipyramids. The Ho–Co bond length is 2.69 Å. There are two shorter (3.17 Å) and two longer (3.22 Å) Ho–Sb bond lengths. In the fourth Ho site, Ho is bonded in a 2-coordinate geometry to two equivalent Co and three equivalent Sb atoms. There are one shorter (2.74 Å) and one longer (2.84 Å) Ho–Co bond lengths. There are a spread of Ho–Sb bond distances ranging from 3.30–3.52 Å. Co is bonded to seven Ho atoms to form distorted edge-sharing CoHo7 pentagonal bipyramids. Sb is bonded in a 9-coordinate geometry to nine Ho atoms.