Materials Data on TbNiSb2 by Materials Project
TbNiSb2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Tb3+ is bonded in a 8-coordinate geometry to eight Sb+2.50- atoms. There are four shorter (3.24 Å) and four longer (3.27 Å) Tb–Sb bond lengths. Ni2+ is bonded to four equivalent Sb+2.50- atoms to form a mixture of edge and corner-sharing NiSb4 tetrahedra. All Ni–Sb bond lengths are 2.55 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 Tb3+ and four equivalent Sb+2.50- atoms. All Sb–Sb bond lengths are 3.10 Å. In the second Sb+2.50- site, Sb+2.50- is bonded in a 8-coordinate geometry to four equivalent Tb3+ and four equivalent Ni2+ atoms.
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