Materials Data on Er3(SbPd2)4 by Materials Project

Abstract

Er3Pd8Sb4 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Er is bonded in a 1-coordinate geometry to eight Pd and five Sb atoms. There are four shorter (3.04 Å) and four longer (3.21 Å) Er–Pd bond lengths. There are one shorter (2.97 Å) and four longer (3.33 Å) Er–Sb bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in a 6-coordinate geometry to three equivalent Er and three equivalent Sb atoms. All Pd–Sb bond lengths are 2.70 Å. In the second Pd site, Pd is bonded in a 7-coordinate geometry to three equivalent Er and four Sb atoms. There are one shorter (2.72 Å) and three longer (2.92 Å) Pd–Sb bond lengths. There are three inequivalent Sb sites. In the first Sb site, Sb is bonded to four equivalent Er and eight Pd atoms to form SbEr4Pd8 cuboctahedra that share corners with four equivalent SbEr4Pd8 cuboctahedra, edges with two equivalent SbEr6 octahedra, and faces with eight equivalent SbEr4Pd8 cuboctahedra. In the second Sb site, Sb is bonded to six equivalent Er atoms to form edge-sharing SbEr6 octahedra. In the third Sb site, Sb is bonded in a body-centered cubic geometry to eight equivalent Pd atoms.