Materials Data on HoNiSb2 by Materials Project
HoNiSb2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ho3+ is bonded in a 8-coordinate geometry to eight Sb+2.50- atoms. There are four shorter (3.21 Å) and four longer (3.28 Å) Ho–Sb bond lengths. Ni2+ is bonded to four equivalent Sb+2.50- atoms to form a mixture of corner and edge-sharing NiSb4 tetrahedra. All Ni–Sb bond lengths are 2.56 Å. There are two inequivalent Sb+2.50- sites. In the first Sb+2.50- site, Sb+2.50- is bonded in a 8-coordinate geometry to four equivalent Ho3+ and four equivalent Sb+2.50- atoms. All Sb–Sb bond lengths are 3.09 Å. In the second Sb+2.50- site, Sb+2.50- is bonded in a 8-coordinate geometry to four equivalent Ho3+ and four equivalent Ni2+ atoms.
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