Materials Data on CeNiSb2 by Materials Project

Abstract

CeNiSb2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce3+ is bonded in a 8-coordinate geometry to eight Sb+2.50- atoms. There are four shorter (3.22 Å) and four longer (3.34 Å) Ce–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 2.59 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 Ce3+ and four equivalent Ni2+ atoms. In the second Sb+2.50- site, Sb+2.50- is bonded in a 8-coordinate geometry to four equivalent Ce3+ and four equivalent Sb+2.50- atoms. All Sb–Sb bond lengths are 3.10 Å.